If you are interested in such a stone, make certain to have this feature assessed carefully by a professional along with the other important elements of a sapphire. While sapphires are mainly assessed based on their color and weight, star sapphires are also graded according to the intensity, visibility, and color, of the asterism. Generally, the greater the carat weight, the more the stone’s value.
Carat weight has a large impact on price. Many believe that this stone could sell up to 175 million. At 733 carats it is the largest gem quality black star sapphire. The world’s largest sapphire was unveiled in 2016, weighing 1404.49 carats and found in the Ratnapura mine in Sri Lanka. ‘Black Star of Queensland’ is the largest black star sapphire.
The second largest is the Star of India, a 563.4-carat blue star sapphire, while the ‘Star of Bombay’ is yet another example of a large blue star sapphire. Called ‘The Star of Adam,’ the stone was mined in the south of Sri Lanka and is the largest blue star sapphire. That’s why the 1404.49-carat blue star sapphire is so famous. Large sapphires are hard to come by, but large star sapphires are nearly impossible to find. The two stars become superimposed upon each other during the crystallization process, thus forming a twelve-ray star. Rutile inclusions create a whitish star whereas hematite results in a golden star. The phenomenon occurs when two types of inclusions are present in the stone: the rutile mineral and platelets of hematite. Though six-ray star sapphires are rare enough, there is even a more unusual stone. In general, inclusions are not something one wants in a stone, but in this case, these flaws work in the gem’s favor.
The star shape is actually formed by intersecting needle inclusions. To be fair, the fiery red color is a major differentiator and those stones that merely display a pale red or pink hue are known as pink sapphires and not rubies. The reason this phenomenon occurs in both gemstones is because for all intents and purposes, sapphires and rubies are the same gemstone. It can also appear in rubies, which are known as ‘star rubies’. Natural Star Sapphire Weight : 7.5ct Cut : Cabochon Measurement : 11.4 x 9.4 x 6.1 mm Color. Those familiar with this term will know that the name ‘star’ refers to the star-like phenomenon that is present in some stones. Buy Natural Yellow Star Sapphire in Singapore,Singapore. Sapphires are well known for their blue variety, though many other colors such as pink, yellow, and green sapphires exist as well. When talking about sapphires, the ‘star sapphire’ fits into this category, as it is unusual and highly sought after. 3) Green Lantern Corps (Vol.Sapphire Star Stone - Discover This Unique GemĮvery gemstone, or any kind of product for that matter, always has that unique version, which is rare, more beautiful or special than its counterparts in some way or another, and valuable.
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