Jewelry Blog

>Star ruby is a rare variety of rubies. Nearly 3 stars are discovered in every 100 faceted corundum mined. Fine stars are more rare. The star effect or “asterism” is caused by the dense inclusions of tiny fibers of foreign particles in gems. The sharpness and the size of the star in ruby depend on the quality and quantity of rutile needles. We get a better star in ruby when the rutile packed more densely.

The most famous Star Ruby is over 138-carat Rosser Reeves Ruby, which can be seen at the Smithsonian. The cost of red Star Ruby can reach at $50,000 per carat. Read more from this article from Introduction of Ruby

Some Interesting pics for Star Ruby:

Indian Star Ruby: This single peice is from the mines of tamilNadu state of south india, mine name is called parmati, dark red with good powerful 6 rayed star – (source)

Rosser Reeves Star Ruby: It is from Sri Lanka, but its early history is not known. When it was purchased by a gem dealer in London in the late 1950s, the ruby weighed 140 carats, but it was subsequently recut to center the star – (source)

Pigeon Blood Red Star Ruby: This is a choice cabachon-cut specimen of star ruby (corundum) from the fabled ruby mines in Ceylon. The surfaces of the crystal have been polished to a high lustre, and the crystal is colored a lovely dark reddish-purple color – (source)