Black Star Of India Sapphire

Star sapphire is a type of sapphire that exhibits a star like phenomenon known as asterism.

Black star of india sapphire.

It is almost flawless and is unusual in that it has stars on both sides of the stone. The diopside gemstone group is most famed for its chrome green member known in the trade as chrome diopside but star diopside a chatoyant black to greenish black diopside is also highly sought after and treasured by gem collectors owing to its uniqueness. This stone s black color is a result of iron and titanium traces present in the mineral. 9 0mm x 7 2mm x 4 5mm deep shape.

The star sapphire displays a nice star when lighted by a concentrated light s. Unlike black sapphire black star sapphire is a very expensive gemstone and can cost thousands of dollars. Black star diopside is sometimes traded as black star of india. This ring features a huge black star sapphire 19 70x 18 73mm set in a beautiful bench made mounting.

Star sapphires contain intersecting needle like inclusions that cause the appearance of a six rayed star shaped pattern. 187 55 this natural black star sapphire cabochon gem shows a very well developed six rayed star when viewed under incandescent bulb light or under direct sunlight. The greyish blue gem was mined in sri lanka and is housed in the american museum of natural history in new york city. 561 25 this 14k yellow gold pendant is set with a natural black star sapphire gem with a very well developed six rayed star when viewed under bulb light or direct sunlight.

Genuine star black sapphire oval cabochon gem measures 11 2mm long x 9 1mm wide handcrafted from a natural black star sapphire mined in india price. Oval cabochon mined in india price. By sarosi by timeless gems. This natural color.

This gem is occasionally mistaken for black star sapphires which exhibit a six or twelve pointed star. 5 out of 5 stars 134 134 reviews. Indian black star diopside is unique in that its star is a four pointed cross. The black star diopside gemstone is formed from calcium magnesium silicate with needle like inclusions that create the star like effect.

The star of india is a 563 35 carat 112 67 g star sapphire one of the largest such gems in the world. Sbkg119 natural color star sapphire gem weighs 3 41 carats star sapphire gemstone size. 34 70 carat oval black star sapphire and black diamonds 18k yellow gold ring. There are also black star sapphire varieties that exhibit pink and purple hues.

The milky quality of the stone is caused by the traces of the mineral rutile which. The inclusions are typically the mineral rutile but in black star sapphire it is inclusions of hematite that cause the star effect. Black star sapphire is mostly mined in thailand west africa and india. The black star of india.