Natural 4.17ct blue Sapphire set with multiple hues

These gorgeous sapphires were sourced from Thailand, and are simply stunning. They have multiple blue hues from royal to cornflower to silver, all wrapped it excellent lusters. This 20 piece collection of sapphires is heated only, no dyes, no fillers, just natural sapphire, and they are well matched in size, measuring about 4mm x 3mm each. With a Mohs hardness rating of 9 out of 10, this collection is perfect for setting!