5/28/2023 0 Comments Star sapphires![]() After several discussions over Facetime, the client flew from the U.S. When the ring appeared online, we received an enquiry from a client in U.S. A recent fine example, which was offered in our November Fine Jewels auction was Lot 188, a star sapphire and diamond ring the sapphire being of significant size (79.57cts). Typically opaque, with some finer specimens exhibiting more translucency, star sapphires will present a silky lustre when cut and polished. Needle-like inclusions of rutile (also known as silk) contained within the sapphire crystal intersect each other at varying angles to produce this rare phenomenon known as asterism. The six-rayed star is most visible when the stone is tilted and rotated, and will appear to move across the rounded surface of a cabochon cut stone. Star Sapphires are a rare variety of sapphire that exhibit a magical star phenomenon known as asterism – the appearance of a pattern or group of stars – under specific lighting. ![]()
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