4 vintage loose Cushion & Oval Flat Synthetic Star Sapphire Cabochons

Description

Vintage set of 4 loose blue synthetic star sapphire cabochons, 2 are cushion shapes at about 12x10mm, one is about 10x8mm and the oval is about 12x10mm. None marked, not sure which brand. All have nice stars and face up a darker blue and are in nice shape with the slight surface wear, one larger cushion has a chip on a top edge that extends to the backside and the smaller cushion has a worse chip on top and backside but can still be used in a project, some dirt on the backsides and old residue and I've not cleaned them. More unusual to see these shapes. Ask questions and look at my pictures.