Cultured pearls from Pinctada margaritifera can exhibit a broad range of natural bodycolors, including various pistachio-like colors ranging from greenish yellow to yellowish green. Bead-cultured ...

Entry trends included some returning favorites like tourmaline, and a huge leap in entries in the “carving” category.

Figure 1. The GIA 7 Pearl Value Factors system classifies pearls according to size, shape, color, luster, surface, nacre, and matching. Composite photo by GIA staff. Prized by many cultures throughout ...

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