The primary source of rubies in the world, Myanmar (Burma), no longer produces such rubies and so the worldwide supply for quality star rubies is now extremely limited, especially for stones over 5 carats in size. Two in every hundred corundum mined will also have a star, but will either have a poor star shape or a poor stone color.
Only one in every hundred rough corundum that are mined will have a star-like shape present that is as apparent as the color of the stone. Star rubies are cut into cabochons in order to display the rare star design as effectively as possible. This star is created when tiny fibers of rutile, also known as “silk,” have light reflected off of them in such a way that a star shape is formed. A ruby is considered a Star Ruby when a three-point or six-point asterism, or star if you will, appears within the stone. Rubies are a variety of the mineral corundum, which also constitutes sapphires since they are one and the same save for the red coloring. This occurrence is so unique and rare that it makes these stones extremely desirable and sought after.Īlthough admiring a defect in the stone might sound strange, consider that fact that the almost unbelievable array of colors diamonds are found with are actually the result of imperfections in the compound element.
Within the various different types of ruby, every once in a while, one might be lucky enough to see a star ruby! This stone is a perfect example of a precious gemstone that only came to be after being subjected to immense pressure and drastic temperatures over millions of years along with a set of inclusions that miraculously construct a star-shaped design. All gemstones are the products of similar processes with additional conditions leading to very rare versions of the stones. Every so often, certain processes occur within nature that coincide with one another resulting in a coincidental and magnificent creation.
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