These are A+ grade turquoise cabochons. These highly polished oval gemstone cabochons measure 16 x 12mm and have a thickness of 6-7mm. Each of these turquoise cabochons is unique in color and matrix. Some are a lighter blue while others have a hint of green. If you have a preference, please enter it in the comments section of your order and we will do our best to accommodate your request. We are selling these turquoise cabochons individually.