{"id":9112,"date":"2026-08-07T03:47:53","date_gmt":"2026-08-06T20:47:53","guid":{"rendered":"https:\/\/useful.vn\/?p=9112"},"modified":"2026-08-07T03:47:53","modified_gmt":"2026-08-06T20:47:53","slug":"giay-kiem-dinh-kim-cuong-co-the-dam-bao-dieu-gi","status":"publish","type":"post","link":"https:\/\/useful.vn\/?p=9112","title":{"rendered":"Gi\u1ea5y ki\u1ec3m \u0111\u1ecbnh kim c\u01b0\u01a1ng c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u g\u00ec?"},"content":{"rendered":"
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\nGi\u1ea5y ki\u1ec3m \u0111\u1ecbnh kim c\u01b0\u01a1ng c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u g\u00ec? <\/h1>\n

Hai vi\u00ean kim c\u01b0\u01a1ng c\u00f9ng tr\u1ecdng l\u01b0\u1ee3ng, tr\u00f4ng hao hao nhau v\u1eabn c\u00f3 th\u1ec3 ch\u00eanh \u0111\u00e1ng k\u1ec3 v\u1ec1 gi\u00e1 v\u00e0 \u0111\u00e2y l\u00e0 l\u00fac th\u1ecb tr\u01b0\u1eddng c\u1ea7n nh\u1eefng gi\u1ea5y ki\u1ec3m \u0111\u1ecbnh.<\/p>\n

Tr\u00ean th\u1ecb tr\u01b0\u1eddng kim c\u01b0\u01a1ng, hai vi\u00ean c\u00f3 c\u00f9ng tr\u1ecdng l\u01b0\u1ee3ng nh\u01b0ng n\u1ebfu kh\u00e1c m\u00e0u s\u1eafc, \u0111\u1ed9 tinh khi\u1ebft ho\u1eb7c ch\u1ea5t l\u01b0\u1ee3ng c\u1eaft m\u00e0i, gi\u00e1 ho\u00e0n to\u00e0n c\u00f3 th\u1ec3 kh\u00e1c nhau. Theo b\u00e0 Nguy\u1ec5n Th\u1ecb Thu H\u01b0\u01a1ng, C\u1ed1 v\u1ea5n t\u00e0i ch\u00ednh FIDT, kh\u00e1c v\u1edbi v\u00e0ng – lo\u1ea1i t\u00e0i s\u1ea3n c\u00f3 gi\u00e1 tham chi\u1ebfu t\u01b0\u01a1ng \u0111\u1ed1i th\u1ed1ng nh\u1ea5t – gi\u00e1 tr\u1ecb c\u1ee7a m\u1ed7i vi\u00ean kim c\u01b0\u01a1ng ph\u1ee5 thu\u1ed9c \u0111\u1ed3ng th\u1eddi v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 nh\u01b0 ti\u00eau chu\u1ea9n 4C g\u1ed3m tr\u1ecdng l\u01b0\u1ee3ng (Carat), m\u00e0u s\u1eafc (Color), \u0111\u1ed9 tinh khi\u1ebft (Clarity) v\u00e0 gi\u00e1c c\u1eaft (Cut), ch\u1ee9ng nh\u1eadn ki\u1ec3m \u0111\u1ecbnh, th\u01b0\u01a1ng hi\u1ec7u v\u00e0 ch\u00ednh s\u00e1ch thu mua c\u1ee7a t\u1eebng doanh nghi\u1ec7p.<\/p>\n

Ch\u00ednh v\u00ec kh\u00f3 chu\u1ea9n h\u00f3a gi\u00e1 tr\u1ecb, th\u1ecb tr\u01b0\u1eddng c\u00e0ng c\u1ea7n nh\u1eefng t\u1ed5 ch\u1ee9c gi\u00e1m \u0111\u1ecbnh \u0111\u1ed9c l\u1eadp \u0111\u1ec3 gi\u1ea3m b\u1ea5t c\u00e2n x\u1ee9ng th\u00f4ng tin gi\u1eefa ng\u01b0\u1eddi mua v\u00e0 b\u00e1n. Thay v\u00ec \u0111\u1ec3 m\u1ed7i ng\u01b0\u1eddi t\u1ef1 m\u00f4 t\u1ea3 ch\u1ea5t l\u01b0\u1ee3ng vi\u00ean \u0111\u00e1, th\u1ecb tr\u01b0\u1eddng h\u00ecnh th\u00e0nh c\u00e1c t\u1ed5 ch\u1ee9c gi\u00e1m \u0111\u1ecbnh \u0111\u1ed9c l\u1eadp nh\u1eb1m t\u1ea1o ra m\u1ed9t b\u1ed9 ti\u00eau chu\u1ea9n chung \u0111\u1ec3 c\u00e1c b\u00ean c\u00f9ng s\u1eed d\u1ee5ng. Tr\u00ean th\u1ecb tr\u01b0\u1eddng qu\u1ed1c t\u1ebf, ch\u1ee9ng th\u01b0 c\u1ee7a GIA (Gemological Institute of America) hay IGI (International Gemological Institute) l\u00e0 m\u1ed9t trong nh\u1eefng c\u0103n c\u1ee9 ph\u1ed5 bi\u1ebfn \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u0111\u1eb7c t\u00ednh c\u1ee7a vi\u00ean kim c\u01b0\u01a1ng trong giao d\u1ecbch.<\/p>\n

C\u00e1c t\u1ed5 ch\u1ee9c n\u00e0y kh\u00f4ng \u0111\u1ecbnh gi\u00e1 hay ch\u1ee9ng nh\u1eadn gi\u00e1 tr\u1ecb t\u00e0i s\u1ea3n. Vai tr\u00f2 c\u1ee7a h\u1ecd l\u00e0 \u0111\u00e1nh gi\u00e1 v\u00e0 ghi nh\u1eadn \u0111\u1ed9c l\u1eadp c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a vi\u00ean kim c\u01b0\u01a1ng theo nh\u1eefng ti\u00eau chu\u1ea9n th\u1ed1ng nh\u1ea5t. \u0110\u1ec3 b\u1ea3o \u0111\u1ea3m t\u00ednh kh\u00e1ch quan, quy tr\u00ecnh ki\u1ec3m \u0111\u1ecbnh \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng v\u1edbi nhi\u1ec1u l\u1edbp ki\u1ec3m so\u00e1t, t\u1eeb kh\u00e2u ti\u1ebfp nh\u1eadn, ph\u00e2n lo\u1ea1i m\u1eabu v\u1eadt, \u0111o l\u01b0\u1eddng b\u1eb1ng thi\u1ebft b\u1ecb chuy\u00ean d\u1ee5ng \u0111\u1ebfn \u0111\u00e1nh gi\u00e1 \u0111\u1ed9c l\u1eadp gi\u1eefa nhi\u1ec1u gi\u00e1m \u0111\u1ecbnh vi\u00ean tr\u01b0\u1edbc khi ph\u00e1t h\u00e0nh ch\u1ee9ng th\u01b0.<\/p>\n

\u0110\u01b0\u1ee3c th\u00e0nh l\u1eadp n\u0103m 1931, GIA l\u00e0 \u0111\u01a1n v\u1ecb ph\u00e1t tri\u1ec3n h\u1ec7 th\u1ed1ng ph\u00e2n lo\u1ea1i 4C hi\u1ec7n \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng r\u1ed9ng r\u00e3i trong ng\u00e0nh kim c\u01b0\u01a1ng. Ngo\u00e0i nghi\u00ean c\u1ee9u v\u00e0 \u0111\u00e0o t\u1ea1o, GIA v\u1eadn h\u00e0nh c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m gi\u00e1m \u0111\u1ecbnh t\u1ea1i nhi\u1ec1u qu\u1ed1c gia.<\/p>\n

C\u00f2n IGI ra \u0111\u1eddi n\u0103m 1975 t\u1ea1i B\u1ec9, hi\u1ec7n c\u00f3 m\u1ea1ng l\u01b0\u1edbi ph\u00f2ng th\u00ed nghi\u1ec7m tr\u1ea3i r\u1ed9ng \u1edf ch\u00e2u \u00c2u, M\u1ef9, Trung \u0110\u00f4ng v\u00e0 ch\u00e2u \u00c1. B\u00ean c\u1ea1nh kim c\u01b0\u01a1ng thi\u00ean nhi\u00ean, t\u1ed5 ch\u1ee9c n\u00e0y l\u00e0 m\u1ed9t trong nh\u1eefng \u0111\u01a1n v\u1ecb gi\u00e1m \u0111\u1ecbnh l\u1edbn \u0111\u1ed1i v\u1edbi kim c\u01b0\u01a1ng nu\u00f4i c\u1ea5y (lab-grown diamond) v\u00e0 trang s\u1ee9c th\u00e0nh ph\u1ea9m.<\/p>\n

N\u00f3i v\u1edbi VnExpress<\/em>, \u00f4ng Nguy\u1ec5n Vi\u1ec7t H\u00e0o, chuy\u00ean gia trang s\u1ee9c kim c\u01b0\u01a1ng, cho r\u1eb1ng vai tr\u00f2 c\u1ee7a c\u00e1c t\u1ed5 ch\u1ee9c gi\u00e1m \u0111\u1ecbnh kh\u00f4ng n\u1eb1m \u1edf vi\u1ec7c x\u00e1c nh\u1eadn m\u1ed9t vi\u00ean kim c\u01b0\u01a1ng “\u0111\u1eaft” hay “r\u1ebb”, m\u00e0 l\u00e0 x\u00e2y d\u1ef1ng m\u1ed9t ti\u00eau chu\u1ea9n chung \u0111\u1ec3 ng\u01b0\u1eddi mua, ng\u01b0\u1eddi b\u00e1n v\u00e0 c\u00e1c b\u00ean li\u00ean quan c\u00f9ng m\u00f4 t\u1ea3 m\u1ed9t vi\u00ean \u0111\u00e1 theo c\u00f9ng h\u1ec7 quy chi\u1ebfu. Gi\u00e1 tr\u1ecb th\u01b0\u01a1ng m\u1ea1i c\u1ee7a vi\u00ean kim c\u01b0\u01a1ng sau \u0111\u00f3 do th\u1ecb tr\u01b0\u1eddng quy\u1ebft \u0111\u1ecbnh.<\/p>\n

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Nh\u00e2n vi\u00ean c\u1ea7m m\u1ed9t vi\u00ean kim c\u01b0\u01a1ng c\u1eaft h\u00ecnh ch\u1eef nh\u1eadt, m\u00e0u D, ho\u00e0n h\u1ea3o b\u00ean trong (internally flawless), n\u1eb7ng 100,94 carat trong m\u1ed9t bu\u1ed5i xem tr\u01b0\u1edbc khi b\u00e1n \u0111\u1ea5u gi\u00e1 \u1edf Geneva, Th\u1ee5y S\u0129. \u1ea2nh: Reuters<\/em><\/p>\n<\/figcaption><\/figure>\n

Tr\u00ean website ch\u00ednh th\u1ee9c, c\u1ea3 GIA v\u00e0 IGI \u0111\u1ec1u nh\u1ea5n m\u1ea1nh t\u00ednh \u0111\u1ed9c l\u1eadp l\u00e0 nguy\u00ean t\u1eafc c\u1ed1t l\u00f5i c\u1ee7a ho\u1ea1t \u0111\u1ed9ng gi\u00e1m \u0111\u1ecbnh. M\u1ee5c ti\u00eau c\u1ee7a quy tr\u00ecnh kh\u00f4ng ph\u1ea3i t\u00ecm c\u00e1ch ch\u1ee9ng minh m\u1ed9t vi\u00ean kim c\u01b0\u01a1ng “\u0111\u1eb9p” hay “x\u1ea5u”, m\u00e0 l\u00e0 b\u1ea3o \u0111\u1ea3m k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng kh\u00f4ng b\u1ecb chi ph\u1ed1i b\u1edfi ng\u01b0\u1eddi g\u1eedi m\u1eabu ho\u1eb7c \u0111\u00e1nh gi\u00e1 ch\u1ee7 quan c\u1ee7a m\u1ed9t c\u00e1 nh\u00e2n.<\/p>\n

\u0110i\u1ec3m \u0111\u1ea7u ti\u00ean c\u1ee7a quy tr\u00ecnh l\u00e0 \u1ea9n danh h\u00f3a m\u1eabu v\u1eadt. Theo GIA, ngay khi \u0111\u01b0\u1ee3c ti\u1ebfp nh\u1eadn, vi\u00ean kim c\u01b0\u01a1ng \u0111\u01b0\u1ee3c g\u00e1n m\u00e3 nh\u1eadn di\u1ec7n n\u1ed9i b\u1ed9 v\u00e0 m\u00e3 v\u1ea1ch \u0111\u1ec3 theo d\u00f5i trong to\u00e0n b\u1ed9 qu\u00e1 tr\u00ecnh ki\u1ec3m \u0111\u1ecbnh. Th\u00f4ng tin v\u1ec1 ch\u1ee7 s\u1edf h\u1eefu ho\u1eb7c doanh nghi\u1ec7p g\u1eedi m\u1eabu kh\u00f4ng \u0111\u01b0\u1ee3c hi\u1ec3n th\u1ecb cho \u0111\u1ed9i ng\u0169 gi\u00e1m \u0111\u1ecbnh nh\u1eb1m tr\u00e1nh m\u1ecdi kh\u1ea3 n\u0103ng thi\u00ean v\u1ecb.<\/p>\n

IGI c\u0169ng \u00e1p d\u1ee5ng nguy\u00ean t\u1eafc t\u01b0\u01a1ng t\u1ef1. T\u1ed5 ch\u1ee9c n\u00e0y cho bi\u1ebft quy tr\u00ecnh \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean b\u1ed1n ti\u00eau ch\u00ed g\u1ed3m an ninh, \u1ea9n danh, \u0111\u1ed9 ch\u00ednh x\u00e1c v\u00e0 t\u00ednh nh\u1ea5t qu\u00e1n. Sau m\u1ed7i c\u00f4ng \u0111o\u1ea1n, vi\u00ean kim c\u01b0\u01a1ng \u0111\u01b0\u1ee3c \u0111\u01b0a tr\u1edf l\u1ea1i b\u1ed9 ph\u1eadn \u0111i\u1ec1u ph\u1ed1i trung t\u00e2m tr\u01b0\u1edbc khi \u0111\u01b0\u1ee3c ph\u00e2n ng\u1eabu nhi\u00ean cho chuy\u00ean gia ti\u1ebfp theo. C\u00e1ch l\u00e0m n\u00e0y gi\u00fap t\u1eebng gi\u00e1m \u0111\u1ecbnh vi\u00ean ch\u1ec9 t\u1eadp trung v\u00e0o \u0111\u1eb7c t\u00ednh c\u1ee7a vi\u00ean \u0111\u00e1 m\u00e0 kh\u00f4ng bi\u1ebft k\u1ebft qu\u1ea3 \u0111\u00e1nh gi\u00e1 tr\u01b0\u1edbc \u0111\u00f3.<\/p>\n

Sau b\u01b0\u1edbc ti\u1ebfp nh\u1eadn, vi\u00ean kim c\u01b0\u01a1ng \u0111\u01b0\u1ee3c l\u00e0m s\u1ea1ch nh\u1eb1m lo\u1ea1i b\u1ecf c\u00e1c y\u1ebfu t\u1ed1 c\u00f3 th\u1ec3 g\u00e2y \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn vi\u1ec7c quan s\u00e1t quang h\u1ecdc v\u00e0 \u0111o l\u01b0\u1eddng, t\u1eeb \u0111\u00f3 b\u1ea3o \u0111\u1ea3m k\u1ebft qu\u1ea3 gi\u00e1m \u0111\u1ecbnh ph\u1ea3n \u00e1nh \u0111\u00fang \u0111\u1eb7c t\u00ednh th\u1ef1c t\u1ebf. Vi\u00ean \u0111\u00e1 sau \u0111\u00f3 tr\u1ea3i qua qu\u00e1 tr\u00ecnh x\u00e1c \u0111\u1ecbnh danh t\u00ednh nh\u1eb1m ph\u00e2n bi\u1ec7t kim c\u01b0\u01a1ng thi\u00ean nhi\u00ean, kim c\u01b0\u01a1ng nu\u00f4i c\u1ea5y ho\u1eb7c c\u00e1c v\u1eadt li\u1ec7u kh\u00e1c, \u0111\u1ed3ng th\u1eddi ki\u1ec3m tra vi\u00ean kim c\u01b0\u01a1ng c\u00f3 t\u1eebng \u0111\u01b0\u1ee3c x\u1eed l\u00fd \u0111\u1ec3 thay \u0111\u1ed5i m\u00e0u s\u1eafc ho\u1eb7c \u0111\u1ed9 tinh khi\u1ebft, nh\u01b0 x\u1eed l\u00fd b\u1eb1ng c\u00f4ng ngh\u1ec7 \u00e1p su\u1ea5t – nhi\u1ec7t \u0111\u1ed9 cao (HPHT), chi\u1ebfu x\u1ea1 hay khoan laser.<\/p>\n

Nh\u1eefng th\u00f4ng s\u1ed1 c\u00f3 th\u1ec3 \u0111o l\u01b0\u1eddng b\u1eb1ng thi\u1ebft b\u1ecb nh\u01b0 tr\u1ecdng l\u01b0\u1ee3ng, k\u00edch th\u01b0\u1edbc hay t\u1ef7 l\u1ec7 c\u1eaft s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u01b0\u1edbc. Theo GIA, tr\u1ecdng l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh b\u1eb1ng c\u00e2n \u0111i\u1ec7n t\u1eed c\u00f3 \u0111\u1ed9 ch\u00ednh x\u00e1c r\u1ea5t cao, trong khi h\u1ec7 th\u1ed1ng \u0111o quang h\u1ecdc ghi nh\u1eadn k\u00edch th\u01b0\u1edbc, t\u1ef7 l\u1ec7 c\u1eaft v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 h\u00ecnh h\u1ecdc c\u1ee7a vi\u00ean \u0111\u00e1.<\/p>\n

Sau \u0111\u00f3, vi\u00ean kim c\u01b0\u01a1ng \u0111\u01b0\u1ee3c chuy\u1ec3n sang giai \u0111o\u1ea1n ph\u00e2n c\u1ea5p, trong \u0111\u00f3 c\u00e1c gi\u00e1m \u0111\u1ecbnh vi\u00ean \u0111\u00e1nh gi\u00e1 m\u00e0u s\u1eafc (Color), \u0111\u1ed9 tinh khi\u1ebft (Clarity), gi\u00e1c c\u1eaft (Cut), \u0111\u1ed9 ho\u00e0n thi\u1ec7n b\u1ec1 m\u1eb7t (Polish), t\u00ednh \u0111\u1ed1i x\u1ee9ng (Symmetry) v\u00e0 hu\u1ef3nh quang (Fluorescence) theo t\u1eebng lo\u1ea1i b\u00e1o c\u00e1o. Quy tr\u00ecnh c\u1ee7a GIA kh\u00f4ng k\u1ebft th\u00fac khi gi\u00e1m \u0111\u1ecbnh vi\u00ean \u0111\u01b0a ra k\u1ebft qu\u1ea3. Ng\u01b0\u1eddi th\u1ef1c hi\u1ec7n vi\u1ec7c ph\u00e2n c\u1ea5p kh\u00f4ng ph\u1ea3i l\u00e0 ng\u01b0\u1eddi quy\u1ebft \u0111\u1ecbnh vi\u1ec7c ph\u00e1t h\u00e0nh ch\u1ee9ng th\u01b0. Sau khi c\u00e1c chuy\u00ean gia ho\u00e0n t\u1ea5t \u0111\u00e1nh gi\u00e1, to\u00e0n b\u1ed9 d\u1eef li\u1ec7u \u0111\u01b0\u1ee3c chuy\u1ec3n sang b\u1ed9 ph\u1eadn \u0111\u1ea3m b\u1ea3o ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ec3 r\u00e0 so\u00e1t t\u00ednh nh\u1ea5t qu\u00e1n c\u1ee7a k\u1ebft qu\u1ea3 v\u00e0 ki\u1ec3m tra l\u1ea7n cu\u1ed1i tr\u01b0\u1edbc khi b\u00e1o c\u00e1o \u0111\u01b0\u1ee3c ph\u00e1t h\u00e0nh.<\/p>\n

Theo \u00f4ng Nguy\u1ec5n Vi\u1ec7t H\u00e0o, nh\u1eefng ti\u00eau ch\u00ed nh\u01b0 m\u00e0u s\u1eafc hay \u0111\u1ed9 tinh khi\u1ebft lu\u00f4n t\u1ed3n t\u1ea1i c\u00e1c tr\u01b0\u1eddng h\u1ee3p n\u1eb1m \u1edf ranh gi\u1edbi gi\u1eefa hai c\u1ea5p ph\u00e2n lo\u1ea1i. Ch\u00ednh v\u00ec v\u1eady, c\u00e1c ph\u00f2ng th\u00ed nghi\u1ec7m qu\u1ed1c t\u1ebf kh\u00f4ng \u0111\u1ec3 m\u1ed9t gi\u00e1m \u0111\u1ecbnh vi\u00ean quy\u1ebft \u0111\u1ecbnh k\u1ebft qu\u1ea3 cu\u1ed1i c\u00f9ng m\u00e0 x\u00e2y d\u1ef1ng quy tr\u00ecnh \u0111\u00e1nh gi\u00e1 \u0111\u1ed9c l\u1eadp, ki\u1ec3m tra ch\u00e9o v\u00e0 ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng nh\u1eb1m gi\u1ea3m t\u1ed1i \u0111a y\u1ebfu t\u1ed1 ch\u1ee7 quan.<\/p>\n

“Gi\u00e1m \u0111\u1ecbnh kim c\u01b0\u01a1ng l\u00e0 s\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa khoa h\u1ecdc v\u00e0 chuy\u00ean m\u00f4n. M\u00e1y m\u00f3c gi\u00fap thu th\u1eadp v\u00e0 \u0111o l\u01b0\u1eddng d\u1eef li\u1ec7u kh\u00e1ch quan, c\u00f2n vi\u1ec7c di\u1ec5n gi\u1ea3i c\u00e1c d\u1eef li\u1ec7u \u0111\u00f3 v\u00e0 ph\u00e2n c\u1ea5p vi\u00ean kim c\u01b0\u01a1ng v\u1eabn c\u1ea7n \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo quy tr\u00ecnh chuy\u00ean m\u00f4n b\u1edfi \u0111\u1ed9i ng\u0169 gi\u00e1m \u0111\u1ecbnh vi\u00ean”, \u00f4ng H\u00e0o n\u00f3i.<\/p>\n

V\u00ec v\u1eady, chuy\u00ean gia cho r\u1eb1ng nh\u1eefng kh\u00e1c bi\u1ec7t nh\u1ecf \u1edf c\u00e1c ti\u00eau ch\u00ed mang t\u00ednh ph\u00e2n c\u1ea5p c\u00f3 th\u1ec3 x\u1ea3y ra, nh\u01b0ng kh\u00f4ng n\u00ean hi\u1ec3u r\u1eb1ng to\u00e0n b\u1ed9 h\u1ec7 th\u1ed1ng gi\u00e1m \u0111\u1ecbnh thi\u1ebfu \u0111\u1ed9 tin c\u1eady. \u0110i\u1ec1u quan tr\u1ecdng nh\u1ea5t v\u1eabn l\u00e0 quy tr\u00ecnh ki\u1ec3m so\u00e1t ch\u1ea5t l\u01b0\u1ee3ng v\u00e0 t\u00ednh \u0111\u1ed9c l\u1eadp c\u1ee7a ph\u00f2ng gi\u00e1m \u0111\u1ecbnh.<\/p>\n

\u0110\u1ed1i v\u1edbi nhi\u1ec1u vi\u00ean kim c\u01b0\u01a1ng, sau khi ho\u00e0n t\u1ea5t gi\u00e1m \u0111\u1ecbnh, s\u1ed1 b\u00e1o c\u00e1o c\u00f2n \u0111\u01b0\u1ee3c kh\u1eafc b\u1eb1ng laser tr\u00ean v\u00e0nh (girdle) c\u1ee7a vi\u00ean \u0111\u00e1. M\u00e3 s\u1ed1 n\u00e0y li\u00ean k\u1ebft v\u1edbi c\u01a1 s\u1edf d\u1eef li\u1ec7u tr\u1ef1c tuy\u1ebfn, cho ph\u00e9p ng\u01b0\u1eddi mua tra c\u1ee9u l\u1ea1i th\u00f4ng tin tr\u00ean website c\u1ee7a GIA ho\u1eb7c IGI \u0111\u1ec3 \u0111\u1ed1i chi\u1ebfu v\u1edbi ch\u1ee9ng th\u01b0 gi\u1ea5y.<\/p>\n

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S\u01a1 l\u01b0\u1ee3c quy tr\u00ecnh ki\u1ec3m \u0111\u1ecbnh kim c\u01b0\u01a1ng. \u0110\u1ed3 h\u1ecda: T\u1ea5t \u0110\u1ea1t (c\u00f3 s\u1ef1 h\u1ed7 tr\u1ee3 c\u1ee7a AI)<\/em><\/p>\n<\/figcaption><\/figure>\n

Ch\u00ednh nh\u1eefng l\u1edbp ki\u1ec3m so\u00e1t n\u00e0y gi\u00fap ch\u1ee9ng th\u01b0 c\u1ee7a GIA v\u00e0 IGI tr\u1edf th\u00e0nh m\u1ed9t trong nh\u1eefng c\u0103n c\u1ee9 ph\u1ed5 bi\u1ebfn cho c\u00e1c giao d\u1ecbch kim c\u01b0\u01a1ng tr\u00ean to\u00e0n th\u1ebf gi\u1edbi. Tuy nhi\u00ean, \u0111i\u1ec1u \u0111\u00f3 kh\u00f4ng \u0111\u1ed3ng ngh\u0129a v\u1edbi vi\u1ec7c t\u1edd gi\u1ea5y ki\u1ec3m \u0111\u1ecbnh c\u00f3 th\u1ec3 lo\u1ea1i b\u1ecf m\u1ecdi r\u1ee7i ro. Tr\u00ean th\u1ef1c t\u1ebf, ch\u00ednh uy t\u00edn c\u1ee7a c\u00e1c t\u1ed5 ch\u1ee9c n\u00e0y \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ee5c ti\u00eau c\u1ee7a nh\u1eefng h\u00e0nh vi gian l\u1eadn tinh vi.<\/p>\n

\u0110\u1ea7u n\u0103m 2024, ph\u00f2ng ki\u1ec3m \u0111\u1ecbnh Gem-Tech t\u1ea1i Italy ph\u00e1t hi\u1ec7n m\u1ed9t s\u1ed1 vi\u00ean kim c\u01b0\u01a1ng nu\u00f4i c\u1ea5y \u0111\u01b0\u1ee3c kh\u1eafc laser tr\u00f9ng v\u1edbi m\u00e3 s\u1ed1 c\u1ee7a nh\u1eefng vi\u00ean kim c\u01b0\u01a1ng thi\u00ean nhi\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c GIA c\u1ea5p ch\u1ee9ng th\u01b0. Sau \u0111\u00f3, Jeweller Magazine<\/em> \u0111\u01b0a tin c\u00e1c chuy\u00ean gia c\u1ee7a GIA t\u1ea1i Dubai c\u0169ng ph\u00e1t hi\u1ec7n th\u00eam nhi\u1ec1u tr\u01b0\u1eddng h\u1ee3p t\u01b0\u01a1ng t\u1ef1.<\/p>\n

M\u1ed9t s\u1ed1 v\u1ee5 vi\u1ec7c c\u00f3 quy m\u00f4 l\u1edbn h\u01a1n, nh\u01b0 t\u1ea1i Surat (\u1ea4n \u0110\u1ed9). Theo c\u00e1c t\u1edd National Jeweler<\/em> v\u00e0 GIA India Press<\/em>, m\u1ed9t \u0111\u01b0\u1eddng d\u00e2y chuy\u00ean nghi\u1ec7p \u0111\u00e3 in h\u00e0ng lo\u1ea1t ch\u1ee9ng th\u01b0 gi\u1ea3 c\u00f3 h\u00ecnh th\u1ee9c g\u1ea7n gi\u1ed1ng b\u1ea3n g\u1ed1c, sau \u0111\u00f3 gh\u00e9p v\u1edbi kim c\u01b0\u01a1ng nu\u00f4i c\u1ea5y ho\u1eb7c kim c\u01b0\u01a1ng ph\u1ea9m c\u1ea5p th\u1ea5p \u0111\u1ec3 \u0111\u01b0a ra th\u1ecb tr\u01b0\u1eddng.<\/p>\n

Theo c\u00e1c t\u1edd Rapaport News<\/em> v\u00e0 Jeweller Magazine<\/em>, nh\u00f3m \u0111\u1ed1i t\u01b0\u1ee3ng s\u1eed d\u1ee5ng c\u00f4ng ngh\u1ec7 kh\u1eafc laser \u0111\u1ec3 sao ch\u00e9p m\u00e3 s\u1ed1 c\u1ee7a nh\u1eefng vi\u00ean kim c\u01b0\u01a1ng \u0111\u00e3 \u0111\u01b0\u1ee3c GIA ki\u1ec3m \u0111\u1ecbnh l\u00ean nh\u1eefng vi\u00ean kim c\u01b0\u01a1ng nu\u00f4i c\u1ea5y ho\u1eb7c kim c\u01b0\u01a1ng \u0111\u00e3 qua x\u1eed l\u00fd c\u00f3 k\u00edch th\u01b0\u1edbc g\u1ea7n t\u01b0\u01a1ng \u0111\u01b0\u01a1ng. Khi ng\u01b0\u1eddi mua nh\u1eadp m\u00e3 s\u1ed1 tr\u00ean website GIA, h\u1ec7 th\u1ed1ng v\u1eabn hi\u1ec3n th\u1ecb b\u00e1o c\u00e1o c\u1ee7a vi\u00ean \u0111\u00e1 th\u1eadt, trong khi vi\u00ean kim c\u01b0\u01a1ng \u0111ang giao d\u1ecbch l\u1ea1i l\u00e0 s\u1ea3n ph\u1ea9m kh\u00e1c.<\/p>\n

M\u1ed9t h\u00ecnh th\u1ee9c gian l\u1eadn kh\u00e1c l\u00e0 l\u00e0m gi\u1ea3 ch\u1ee9ng th\u01b0 k\u00e8m m\u00e3 QR d\u1eabn \u0111\u1ebfn c\u00e1c website c\u00f3 giao di\u1ec7n g\u1ea7n gi\u1ed1ng trang c\u1ee7a t\u1ed5 ch\u1ee9c ki\u1ec3m \u0111\u1ecbnh. Theo t\u1ed5 ch\u1ee9c b\u1ea3o hi\u1ec3m trang s\u1ee9c qu\u1ed1c t\u1ebf JCRS, c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng th\u01b0\u1eddng s\u1eed d\u1ee5ng t\u00ean mi\u1ec1n g\u1ea7n gi\u1ed1ng website ch\u00ednh th\u1ee9c \u0111\u1ec3 \u0111\u00e1nh l\u1eeba ng\u01b0\u1eddi d\u00f9ng khi tra c\u1ee9u tr\u1ef1c tuy\u1ebfn. Trong m\u1ed9t tr\u01b0\u1eddng h\u1ee3p \u0111\u01b0\u1ee3c JCRS ghi nh\u1eadn, m\u00e3 QR tr\u00ean ch\u1ee9ng th\u01b0 gi\u1ea3 d\u1eabn t\u1edbi m\u1ed9t website c\u00f3 \u0111\u1ecba ch\u1ec9 g\u1ea7n gi\u1ed1ng trang x\u00e1c minh c\u1ee7a Vi\u1ec7n Khoa h\u1ecdc \u0110\u00e1 qu\u00fd Ch\u00e2u \u00c1 (AIGS) Th\u00e1i Lan, khi\u1ebfn ng\u01b0\u1eddi mua kh\u00f3 nh\u1eadn bi\u1ebft n\u1ebfu ch\u1ec9 d\u1ef1a v\u00e0o giao di\u1ec7n.<\/p>\n

\u0110i\u1ec3m chung c\u1ee7a c\u00e1c v\u1ee5 vi\u1ec7c tr\u00ean l\u00e0 k\u1ebft qu\u1ea3 ki\u1ec3m \u0111\u1ecbnh kh\u00f4ng thay \u0111\u1ed5i. Trong ph\u1ea7n l\u1edbn c\u00e1c vi\u1ec7c \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1, \u0111i\u1ec1u b\u1ecb x\u00e2m ph\u1ea1m kh\u00f4ng ph\u1ea3i l\u00e0 quy tr\u00ecnh ki\u1ec3m \u0111\u1ecbnh, m\u00e0 l\u00e0 s\u1ef1 li\u00ean k\u1ebft gi\u1eefa vi\u00ean kim c\u01b0\u01a1ng th\u1ef1c t\u1ebf v\u00e0 b\u00e1o c\u00e1o. N\u00f3i c\u00e1ch kh\u00e1c, c\u00e1c \u0111\u1ed1i t\u01b0\u1ee3ng kh\u00f4ng c\u1ed1 t\u1ea1o ra m\u1ed9t b\u00e1o c\u00e1o ki\u1ec3m \u0111\u1ecbnh gi\u1ea3 v\u1ec1 m\u1eb7t chuy\u00ean m\u00f4n, m\u00e0 t\u00ecm c\u00e1ch khi\u1ebfn ng\u01b0\u1eddi mua tin r\u1eb1ng vi\u00ean \u0111\u00e1 tr\u00ean tay ch\u00ednh l\u00e0 vi\u00ean \u0111\u00e3 \u0111\u01b0\u1ee3c ki\u1ec3m \u0111\u1ecbnh.<\/p>\n\n\n\n\n\n\n\n\n
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Gi\u1ea5y ki\u1ec3m \u0111\u1ecbnh x\u00e1c nh\u1eadn<\/span><\/p>\n<\/th>\n

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Gi\u1ea5y ki\u1ec3m \u0111\u1ecbnh kh\u00f4ng x\u00e1c nh\u1eadn<\/span><\/p>\n<\/th>\n<\/tr>\n<\/thead>\n

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4C<\/p>\n<\/td>\n

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\u2718 Gi\u00e1 b\u00e1n<\/p>\n<\/td>\n<\/tr>\n

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Kim c\u01b0\u01a1ng t\u1ef1 nhi\u00ean hay nh\u00e2n t\u1ea1o<\/p>\n<\/td>\n

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\u2718 Kh\u1ea3 n\u0103ng t\u0103ng gi\u00e1<\/p>\n<\/td>\n<\/tr>\n

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C\u00f3 x\u1eed l\u00fd hay kh\u00f4ng<\/p>\n<\/td>\n

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\u2718 H\u00e0ng h\u00f3a h\u1ee3p ph\u00e1p<\/p>\n<\/td>\n<\/tr>\n

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Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt<\/p>\n<\/td>\n

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\u2718 Uy t\u00edn ng\u01b0\u1eddi b\u00e1n<\/p>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Theo \u00f4ng Nguy\u1ec5n Vi\u1ec7t H\u00e0o, ng\u01b0\u1eddi ti\u00eau d\u00f9ng kh\u00f4ng n\u00ean \u0111\u1ed3ng nh\u1ea5t gi\u00e1 tr\u1ecb c\u1ee7a vi\u00ean kim c\u01b0\u01a1ng v\u1edbi t\u1edd gi\u1ea5y \u0111i k\u00e8m. B\u00e1o c\u00e1o gi\u00e1m \u0111\u1ecbnh ph\u1ea3n \u00e1nh c\u00e1c \u0111\u1eb7c t\u00ednh c\u1ee7a vi\u00ean kim c\u01b0\u01a1ng t\u1ea1i th\u1eddi \u0111i\u1ec3m gi\u00e1m \u0111\u1ecbnh. V\u00ec v\u1eady, ngo\u00e0i vi\u1ec7c ki\u1ec3m tra ch\u1ee9ng th\u01b0, ng\u01b0\u1eddi mua c\u0169ng c\u1ea7n \u0111\u1ed1i chi\u1ebfu m\u00e3 s\u1ed1 kh\u1eafc laser (n\u1ebfu c\u00f3), \u0111\u1eb7c \u0111i\u1ec3m nh\u1eadn d\u1ea1ng c\u1ee7a vi\u00ean \u0111\u00e1 v\u00e0 l\u1ef1a ch\u1ecdn giao d\u1ecbch v\u1edbi \u0111\u01a1n v\u1ecb c\u00f3 ngu\u1ed3n g\u1ed1c h\u00e0ng h\u00f3a, ch\u00ednh s\u00e1ch b\u1ea3o h\u00e0nh v\u00e0 h\u1ed3 s\u01a1 ph\u00e1p l\u00fd minh b\u1ea1ch (hay c\u00f2n \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 H\u1ed3 s\u01a1 nh\u1eadn di\u1ec7n).<\/p>\n

\u00d4ng cho r\u1eb1ng m\u1ed9t hi\u1ec3u l\u1ea7m kh\u00e1 ph\u1ed5 bi\u1ebfn l\u00e0 nhi\u1ec1u ng\u01b0\u1eddi xem ch\u1ee9ng th\u01b0 nh\u01b0 m\u1ed9t “gi\u1ea5y b\u1ea3o \u0111\u1ea3m” cho to\u00e0n b\u1ed9 giao d\u1ecbch. Tr\u00ean th\u1ef1c t\u1ebf, c\u00e1c t\u1ed5 ch\u1ee9c nh\u01b0 GIA hay IGI kh\u00f4ng \u0111\u1ecbnh gi\u00e1 vi\u00ean kim c\u01b0\u01a1ng, kh\u00f4ng x\u00e1c nh\u1eadn uy t\u00edn c\u1ee7a ng\u01b0\u1eddi b\u00e1n v\u00e0 c\u0169ng kh\u00f4ng \u0111\u00e1nh gi\u00e1 t\u00ednh h\u1ee3p ph\u00e1p c\u1ee7a qu\u00e1 tr\u00ecnh l\u01b0u th\u00f4ng h\u00e0ng h\u00f3a. Gi\u00e1 b\u00e1n v\u1eabn ph\u1ee5 thu\u1ed9c v\u00e0o cung – c\u1ea7u th\u1ecb tr\u01b0\u1eddng, th\u01b0\u01a1ng hi\u1ec7u b\u00e1n l\u1ebb, ch\u00ednh s\u00e1ch thu mua c\u0169ng nh\u01b0 nhi\u1ec1u y\u1ebfu t\u1ed1 th\u01b0\u01a1ng m\u1ea1i kh\u00e1c.<\/p>\n

Theo chuy\u00ean gia, ng\u01b0\u1eddi mua n\u00ean xem ch\u1ee9ng th\u01b0 l\u00e0 m\u1ed9t trong 3 l\u1edbp th\u00f4ng tin c\u1ea7n \u0111\u1ed1i chi\u1ebfu tr\u01b0\u1edbc khi giao d\u1ecbch. L\u1edbp \u0111\u1ea7u ti\u00ean l\u00e0 b\u00e1o c\u00e1o gi\u00e1m \u0111\u1ecbnh c\u1ee7a c\u00e1c t\u1ed5 ch\u1ee9c \u0111\u1ed9c l\u1eadp, gi\u00fap x\u00e1c \u0111\u1ecbnh vi\u00ean kim c\u01b0\u01a1ng c\u00f3 \u0111\u00fang v\u1edbi th\u00f4ng tin \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 hay kh\u00f4ng. L\u1edbp th\u1ee9 hai l\u00e0 ngu\u1ed3n g\u1ed1c v\u00e0 h\u1ed3 s\u01a1 l\u01b0u th\u00f4ng c\u1ee7a h\u00e0ng h\u00f3a. L\u1edbp cu\u1ed1i c\u00f9ng l\u00e0 s\u1ef1 tr\u00f9ng kh\u1edbp gi\u1eefa vi\u00ean kim c\u01b0\u01a1ng th\u1ef1c t\u1ebf v\u1edbi c\u00e1c th\u00f4ng s\u1ed1 tr\u00ean ch\u1ee9ng th\u01b0, bao g\u1ed3m m\u00e3 kh\u1eafc laser (n\u1ebfu c\u00f3), tr\u1ecdng l\u01b0\u1ee3ng, k\u00edch th\u01b0\u1edbc v\u00e0 c\u00e1c \u0111\u1eb7c \u0111i\u1ec3m nh\u1eadn d\u1ea1ng kh\u00e1c.<\/p>\n

C\u00e1c chuy\u00ean gia qu\u1ed1c t\u1ebf c\u0169ng \u0111\u01b0a ra khuy\u1ebfn ngh\u1ecb t\u01b0\u01a1ng t\u1ef1. Thay v\u00ec qu\u00e9t m\u00e3 QR in s\u1eb5n tr\u00ean ch\u1ee9ng th\u01b0 do ng\u01b0\u1eddi b\u00e1n cung c\u1ea5p, ng\u01b0\u1eddi mua n\u00ean ch\u1ee7 \u0111\u1ed9ng truy c\u1eadp website ch\u00ednh th\u1ee9c c\u1ee7a GIA ho\u1eb7c IGI v\u00e0 nh\u1eadp tr\u1ef1c ti\u1ebfp m\u00e3 s\u1ed1 b\u00e1o c\u00e1o \u0111\u1ec3 tra c\u1ee9u. V\u1edbi nh\u1eefng giao d\u1ecbch c\u00f3 gi\u00e1 tr\u1ecb l\u1edbn, vi\u1ec7c \u0111\u1ed1i chi\u1ebfu th\u00eam c\u00e1c th\u00f4ng s\u1ed1 v\u1eadt l\u00fd ho\u1eb7c ki\u1ec3m \u0111\u1ecbnh l\u1ea1i t\u1ea1i m\u1ed9t ph\u00f2ng th\u00ed nghi\u1ec7m \u0111\u1ed9c l\u1eadp c\u00f3 th\u1ec3 gi\u00fap gi\u1ea3m r\u1ee7i ro.<\/p>\n

S\u1ef1 ph\u00e1t tri\u1ec3n c\u1ee7a c\u00f4ng ngh\u1ec7 khi\u1ebfn vi\u1ec7c l\u00e0m gi\u1ea3 ch\u1ee9ng th\u01b0 v\u00e0 m\u00e3 nh\u1eadn di\u1ec7n ng\u00e0y c\u00e0ng tinh vi, nh\u01b0ng c\u0169ng bu\u1ed9c c\u00e1c t\u1ed5 ch\u1ee9c ki\u1ec3m \u0111\u1ecbnh li\u00ean t\u1ee5c ho\u00e0n thi\u1ec7n quy tr\u00ecnh v\u00e0 h\u1ec7 th\u1ed1ng x\u00e1c th\u1ef1c. \u0110i\u1ec1u \u0111\u00f3 kh\u00f4ng l\u00e0m thay \u0111\u1ed5i vai tr\u00f2 c\u1ee7a GIA hay IGI trong th\u1ecb tr\u01b0\u1eddng kim c\u01b0\u01a1ng qu\u1ed1c t\u1ebf, song cho th\u1ea5y m\u1ed9t th\u1ef1c t\u1ebf: gi\u00e1 tr\u1ecb c\u1ee7a gi\u1ea5y ki\u1ec3m \u0111\u1ecbnh kh\u00f4ng n\u1eb1m \u1edf b\u1ea3n th\u00e2n t\u1edd gi\u1ea5y, m\u00e0 \u1edf h\u1ec7 th\u1ed1ng ti\u00eau chu\u1ea9n, quy tr\u00ecnh ki\u1ec3m so\u00e1t v\u00e0 kh\u1ea3 n\u0103ng ki\u1ec3m ch\u1ee9ng \u0111\u1eb1ng sau n\u00f3.<\/p>\n

T\u1ea5t \u0110\u1ea1t – Qu\u1ef3nh Trang<\/strong><\/p>\n<\/article>\n

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Gi\u1ea5y ki\u1ec3m \u0111\u1ecbnh kim c\u01b0\u01a1ng c\u00f3 th\u1ec3 \u0111\u1ea3m b\u1ea3o \u0111i\u1ec1u g\u00ec? Hai vi\u00ean kim c\u01b0\u01a1ng c\u00f9ng tr\u1ecdng l\u01b0\u1ee3ng, tr\u00f4ng hao hao nhau v\u1eabn c\u00f3 th\u1ec3 ch\u00eanh \u0111\u00e1ng k\u1ec3 v\u1ec1 gi\u00e1 v\u00e0 \u0111\u00e2y l\u00e0 l\u00fac th\u1ecb tr\u01b0\u1eddng c\u1ea7n nh\u1eefng gi\u1ea5y ki\u1ec3m \u0111\u1ecbnh. Tr\u00ean th\u1ecb tr\u01b0\u1eddng kim c\u01b0\u01a1ng, hai vi\u00ean c\u00f3 c\u00f9ng tr\u1ecdng l\u01b0\u1ee3ng nh\u01b0ng n\u1ebfu kh\u00e1c<\/p>\n","protected":false},"author":1,"featured_media":9113,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-9112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-thi-truong"],"_links":{"self":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts\/9112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9112"}],"version-history":[{"count":0,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/posts\/9112\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=\/wp\/v2\/media\/9113"}],"wp:attachment":[{"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/useful.vn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}