Emeralds are again being mined in the historic district of the Ural Mountains. Physical, chemical, spectroscopic, and microscopic characteristics of stones from the recent production are presented and ...
The GIA Laboratory-Grown Diamond Report includes full quality assessment with a plotted clarity diagram. Color and clarity specification are described on the same scale as the GIA Diamond Grading ...
GIA is proud to provide the most comprehensive research in the industry with a world-renowned field gemology team and a dedication to acquiring colored stones directly from the source. Our ...
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ญๆ๏ผ้ฃไนๆจๅพๅนธ่ฟ๏ผๅฏไปฅๆฅๆไธ็ง็ๆฅ็ณใๅ
ญๆๆฏไป
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ญๆ็ๆฅ็ณๆฏ ...
ไฝไธบไบๆ็็ๆฅ็ณ๏ผ็ฅๆฏ็ปฟๅจๅ ๅๅนดๆฅไธ็ดๆทฑๅไบบไปฌ็ๅ็ฑ๏ผ่ฎฉไบบ่ๆณๅฐ้็ๅๅคๅ
ดใๅพๅคไบบ่ฎคไธบ็ฅๆฏ็ปฟๆ็ฌฆๅ็ปฟ่ฒๅฎไน๏ผๆฏๆๅฎ็พ็ๆฅๅคฉ่ฒๅฝฉใไป็ฑๅฐๅ
ฐๅฒ่ขซ่ฏๆๅฐๆ่ฟฐไธบโ็ปฟๅฎ็ณๅฒโ๏ผๅฐ ...
CARLSBAD, California โ September 23, 2024 โ Everything retailers and their customers need to know about diamonds just got easier to find and understand with GIAโs redesigned consumer-facing website ...
10ๆ็ใพใใฎๆนใฏใ่ช็ๆฅใ็ฅ็ฆใใใฎใซ2ใคใฎ็ด ๆดใใใ่ช็็ณใใชใใผใซใจใใซใใชใณใใๆฅฝใใฟใใใ ใใพใใ10ๆใฎ่ช็็ณใฏใไธกๆนใจใ็ก้ใฎ่ฒใฎ็ตใฟๅใใใๆใกใ็พใใ่ฒใ ...
Fine-color, large, and eye-clean (lacking visible inclusions) rubies like this 11.01carat (ct) stone from Myanmar (formerly known as Burma) are extremely rare and valuable. โ Photo: Robert Weldon/GIA.
With 65,000 volumes, 230,000 images, 2200 videos, and 1200 periodicals, the Richard T. Liddicoat Gemological Library & Information Center and Cartier Rare Book Repository & Archive is the largest, ...
Those born in January are lucky to have the beautiful and diverse garnet as their birthstone. Garnets are commonly red but also come in an extraordinary range of beautiful colors, including orange, ...
Jadeite comes in a wide range of colors. The most valuable is an intense green called Imperial. - Courtesy Mason-Kay Fine Jade Jewelry To understand the value of jade, you have to look beyond its ...
11ๆ็ใพใใฎๆนใฏใ2ใคใฎ็พใใ่ช็็ณใใใใผใบใจใทใใชใณใใใๅฅฝใใชใใฎใ้ธใถใใจใใงใใพใใใใใผใบใซใฏ่นใฎใใใซๆงใ
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