We have an assortment of cabochons we have purchased over the years of a size 18mm x 13mm. If you just want to get one cab or an assortment, no problem just state the number of cabs for the order. If you want a certain variety of gemstone, then please send an e-mail after or before you place the order. We'll try to fill your order as requested, but some varieties are a lot of one only, and others are up to 10 plus available. The size 18mm x 13mm is a common finding size for rings and or pendants, but also the size is roughly 3/4 of an inch by 1/2 inch.
Varieties available at this time are rhodonite, gold tiger-eye, black zebra agate, black obsidian, Biggs & Graveyard Point plume. We'll be adding to this list as time becomes available. The image show is rhodonite.