Columbia Gem House – Calibrated Melee

Sold by the piece or in large quantities, these calibrated melee are available in sizes ranging from 1.3 mm to 4 mm and in more than 150 color options. The stones are offered in more than 50 gem varieties, including Anthill garnet, Mexican fire opal, Montana sapphires, Mesa Verde peridot, imperial diopside, Australian sapphire, nightsky iolite, and grape garnet.