寶啾寶石 報報: Glued-Together Diamond Turns Up at GIA GIA發現鑽石新的黏合優化處理 寶啾 寶石坊 也有 裸鑽 及 有色寶石 的銷售服務,也 可以代客設計加工,歡迎來詢問, 寶啾寶石坊 提供最好的服務及最佳的價位。 Baochu寶啾寶石坊有LINE@了,請透過下方連結將我們加好友。 https://line.me/R/ti/p/%40vqw8994l A face-up photo of the glued-together diamond recently spotted by graders in the GIA lab in Carlsbad (Photo by Robison McMurtry/GIA) August 15, 2018 Carlsbad, Calif.—The Gemological Institute of America said its Carlsbad lab recently received a diamond that had broken in half and been repaired with an adhesive of some sort. In the summer 2018 issue of Gems & Gemology, GIA research associate Troy Ardon wrote a lab note about a 1.38-carat marquise-cut diamond submitted to the laboratory for colored diamond grading services. Graders initially noted large fractures and a large cavity on the table. After careful examination under a microscope, they discovered that the stone had been broke...
留言
張貼留言