100% natural cabochon ruby of 4.87 ct / 5.35 Ratti reflecting an opalescent star like image owing to its regular internal structure.
Under Uniform Light source Under ordinary multi light source.
An asterism or a star effect in a gemstone is an optical phenomenon displayed by some rubies, sapphires, and other gemstones (e.g. garnet, Rose quartz, diopside, spinel) of an enhanced reflective area in the shape of a 4 to 6 ray "star" on the surface of a cabochon cut from the stone. The cabochon cut can be Oval, Round or any other shape.
Gemstones that exhibit special optical phenomena, including asterism (the star effect), chatoyancy (the cat's eye effect), adularescence (shimmering light) and iridescence (the rainbow effect) are categorised as phenomenal gemstones.
Because these phenomenal gems are fairly rare, they naturally attract the attention of rare gems collectors are priced much higher than their normally available counterparts.
|Gemstone Variety||Natural Ruby with Asterism (Star)|
|Gemstone Species||Natural Corundum|
|Gem Weight||4.87 Carat|
|Gem Cut||Oval Cabochone|
|Gem Color||Pinkish grey|
|Gem Dimension||10.30 x 08.45 x 05.20 mm approx|
- Product Code: RubyStarOCI07_0487ctA
- Availability: 1