Primary Competitive Advantages: Price Quality Approvals Reputation Mainly applied to industry, such as watches, instruments, bearings and window glassesDifferent sizes and grades are availableColor: whiteManmade corundum, synthetic gemstonediameter: 20-40mm, L: 60-120mm-1Annealed Whole White Sapphires,Samples are free within a certain price range. white sapphire in whole boule