Atypical Freshwater Cultured Pearls with Damaged Nacre
Examination of four baroque-shaped pearls with damaged nacre layers.
黄色“好望角”彩钻中发现鱼状内含物 (英语)
A recent lab examination at GIA New York revealed an inclusion in a rectangular Fancy Yellow called "pareidolia," which means it was a resemblance of the scales and form of a fish.
Rare Faceted Neptunite
Raman spectroscopy reveals orangy red neptunite in identification of a 11.78 ct faceted “black” octagonal modified step-cut stone.
A Large Irradiated Green-Yellow Diamond
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