Sapphire Crystal Star Studs Pretty Sapphire Crystal Star Studs made with Sapphire CZ Crystals.  These Lovely Sapphire Crystal Star Studs have Pretty 2mm round Sapphire CZ Crystals set in a 3d Star Surround. They are nice & dainty at 5mm so site nice and flat to the lobes.  They are finished with a very high polish so look great.