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What Are Star Rubies
Star Rubies are a rare variety of the gemstone Ruby. These magnificent gems display a sharp six-rayed star which seems to glide magically across the surface of the gem when the latter is moved. This is caused due to an optical phenomenon known as "Asterism". The star is best visible when the star ruby is seen in a single light source such as sunlight and spotlight.
Star Sapphire
The prices and value of star sapphire vary depending the size and quality of the gemstone. The saturation and consistency of the body color are quite important, as are the visibility and distinctness of the star. However, there is often a tradeoff between these, since the more rutile in the gem, the weaker the body color and the stronger the star.
clarity
- Translucent
- Mostly Opaque
Cutting
Cutting is very important to exhibit the star effect in ruby. They need to be cut into medium to high, domed cabochons to get the perfect star effect. The cabochons must be round or oval-shaped. The stone should not be too flat on the top or too heavy on the bottom. Many a times, bottoms of star rubies are kept unpolished so that the light is trapped inside the gemstone.
determine the value of a star ruby
The value of Star rubies is basically influenced by two things: (a) The strength and sharpness of the star, (b) Intensity and attractiveness of body colour
colour
Generally rubies are red. But star ruby is usually not red. Most star rubies are available in pinkish-red, purplish-red or purplish-brown colour. The distribution of colour is often uneven, in stripes and spots. A red ruby with a perfect star is very rare and costly. As a general rule, pink star rubies have the best stars.
Star Sharpness
The star should be sharp (not blurry) and silvery / milky white. The best way to test the sharpness of the star is to look at the star ruby in sunlight with the dome facing the sun. All six prongs should be straight and equally prominent. The complete star should be centered in the middle of the gem, but should also be able to glide effortlessly around the cabochon.
Use of Star Sapphire
The second advantage of buying a loose gemstone is choice. You are free to pick the exact color, cut, shape and variety of the stone for the setting of your dreams, be it yellow gold, white gold, platinum or silver; prong set or bezel set. You can experience the joy of creating your very own, one-of-a-kind jewelry design
Light Reflection
The amount of light reflected at the surface of a gemstone is its luster and blue sapphires have a glassy (vitreous) luster as opposed to the waxy, greasy, or resinous luster of other stones.
Source of Star Ruby
Most rough rubies that can be cut into stars are mined from Burma (Myanmar), Srilanka, India, Africa, Vietnam, Thailand, Afghanistan, Pakistan, Australia, Cambodia, United States. The most commonly available Star Rubies are usually from Africa and Indian.
Perfect For Jewelry Making
Perfect For: Jewelers, Jewelry makers, Goldsmiths, Designers, Craftsmen, Collectors or a gift for the special one. Each and every stone is unique and you will receive ones similar to the image shown.
Kindle Customer
Reviewed in the United States on April 22, 2024
This is a gorgeous stone that is purplish pink. I glued it with a sapphire star ruby and put it in a pendant for my teenager who loves it! Would also be pretty as a ring too.
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