CleverDelights 30mm round glass cabochons. Clear, solid glass. 50 pack. Diameter: 30mm (1 3/16 inch). Dome height: 7mm (1/4 inch). Clear transparent cabs. Cabochons have one flat side and one domed side, giving them a slight magnifying effect. Please visit our store to see our full selection of CleverDelights round and square glass tiles, round and oval glass cabochons, and more! Thanks for shopping with us!