Madagascar Blue Star Sapphire 1.81 carats 8.2x6.5mm
Sharp color and star on this star sapphire mined and cabbed (star sapphires are generally considered cabbed vice cut) in Madagascar. Opaque body with some cool tiger striping gives it an additional flair.
When I first started collecting star sapphires back in the late 1980's, Madagascar Blue Star Sapphires always intrgued me. I love the variety of denim blue colors, the distinct star effect, and the relative low cost you could find them for. You could typically find them at a gem show in Tucson or Bangkok for $10-20/carat.
Nowdays though even finding them is a task, most you see that look like them are artificially colored or artificially enhanced with a star and finding the untreated ones are near impossible.