Natural 3.23ct blue Sapphire set with multiple hues

This heavy 12 piece collection of sapphires is heated only, no dyes, no fillers, just natural sapphire. They have multiple blue hues from royal to ink to London blue, all wrapped in excellent lusters. They are well matched in size, measuring between 4x3mm and 4.5x3.5mm and have a Mohs hardness rating of 9 out of 10, making them perfect for setting. They were sourced from Madagascar, and are simply beautiful.