What Is A Lindy Star Sapphire

Vintage linde lindy 5mm approx 1 5 ctw mint green star sapphire created pendant earring set pal plated chain 18 inch 925 sterling silver silkpurseprime from shop silkpurseprime.

What is a lindy star sapphire.

Learn about asterism an optical phenomenon displayed by these one of a kind gems why a perfect star sapphire should be a concern how critical the cut of a star sapphire is and where 2020 trends see star sapphires. Armstrong siddeley star sapphire a british automobile from 1958. You can read more about asterism in our phenomenal gems article. It was manufactured by the linde division of the union carbide corporation between the 1950s and 1970s.

Star sapphire is rare variety of sapphire that exhibits a rare asterism under specific lighting. A lindy star on a yellow sapphire cabochon 2 look for the l if there is a small l stamped on the underside of the stone then that is the clearest sign of the sapphire s falseness. The following article is based on excerpts from an interview with mr. Star sapphire is a type of sapphire displaying an optical star like effect.

I must go back to about 1920. See other articles. Find out the characteristics and features making star sapphires unique and rare. This effect is caused by asterism.

The most popular color. The effect is best viewed under a direct light source and while tilting and rotating the stone from different angles. A lindy star sapphire is a synthetic star which is essentially painted on a stone. There are 433 lindy star sapphire for sale on etsy and they cost 85 59 on average.

A type of sapphire gemstone that exhibits a star like phenomenon known as asterism. When viewing star sapphire a six rayed star will appear to float across the surface of the stone. Burdick would you tell us how you happened to develop the star. Star sapphire corundum variety.

Production stopped in 1974 due to increased overseas competition from southeast asia. Pursue your passion for gemstones with the ultimate gem resource start your gem education. Star sapphire may refer to several things. A linde sapphire s star has thin perfectly even rays that are so clear some jewelry experts say they appear painted on the star is visible even in dim light and doesn t move relative to a light source.

In contrast a natural sapphire s star has thicker slightly uneven rays and the star moves to follow the light. Jack burdick co inventor at u c c linde division.