Linde Star Sapphire Value

3 a rough underside is a good sign.

Linde star sapphire value.

Linde patented their star sapphires in november of 1949. Linde star sapphire history the linde division of the union carbide corporation in the united states first began lab producing and marketing their star sapphires in the late 1940s. Lavender star sapphire ceylon good star si vvs type ii 100 to 1 500 per carat. E 1 765 1 779 usually 1 760 1 768.

Production was discontinued in 1974 due to overseas competition. The most common linde star sapphire material is sapphire. The red variety of corundum is ruby. The l stands for linde and linde was the company that originally synthesized star sapphires in the late 1940s.

So a natural star sapphire value will increase for stones with a perfect star. The blue variety is by far the most popular. Natural star sapphires don t typically have very smooth backs. Some 12 ray star sapphire normally it has 6 rays or double star sapphire two stars on the same stone also exist but they are highly rare and precious.

Fantastic dome ring with cabochon sapphire opal and labradorite diamond ct 0 65 and 18k white gold size 13 eu. Sapphire gemstones are the birthstone for september. The most popular color. Linde star sapphire gemstones sapphire al2o3 is the non red variety of corundum.

Orange yellow yellowish orange optics ri. The perfection of its star is what makes the linde sapphire stand out as a synthetic among natural sapphires. Shop for unique and designer star sapphire rings from the world s best jewelers at 1stdibs. As being naturally formed they may be a bit uneven or even rough to the touch where areas fake stars will usually be very smooth and flat on the back.