Justinstones Natural 6mm Blue Lapis Lazuli Round Cab Cabochon Pack of 12 Cab Size: approx 6x3mm, Flat backside. For Jewerly DIY or Making & Design, NO hole drilled High Quality Natural Lapis Gemstone, Good Blue Color Please note gemstone is unique, You will receive the similar item as shown, not exact ones in picture. The white spots on picture are light reflection, not stone marking.