Loose Precious Gemstones

Ruby, sapphire and emerald, together with diamond, are the traditional precious gemstones, valued for their color, rarity and durability. This collection brings them together in loose form for jewelers, designers and collectors: calibrated millimeter sizes for matched work and one-of-a-kind single stones.

Shop by gem: ruby, sapphire, emerald, or natural diamonds. For aquamarine, tanzanite, topaz and more, see semi-precious gemstones.