The denim blue color, sharp star nice high dome. Seems like yesterday you could find star sapphires like this at any of the major gem shows……not anymore. I just love the color(like a worn denim blue) and the character of the Madagascar stars. .
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.
Nowadays 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.