If the gem has a lot of scratches, then it is probably not a natural sapphire. They just are not that easily scratched. You can also try to scratch it yourself with a coin. This is another indication — a real sapphire will never be scratched by a coin. Or, try looking closer with a magnifying glass.
Real gems always have some imperfections and flaws. Another way to tell is by looking at the growth lines. They are straight in a natural sapphire. The chemical composition of the stone changes the color. Corundum is, in its purest form, the element Al If it is truly pure, this creates a colorless gem or leukosapphire.
But often, other things get tossed into the fray. Traces of elements like iron, titanium, and copper are common. These elements can come and go as the stone forms.
The amount that these are present will affect the color. This is also the same reason why diamonds are occasionally blue boron or yellow nitrogen. Blue is the traditional color for a sapphire. The other colors are referred to as fancy sapphires — but there is one that is the fanciest of all! The rarest color is a unique gem. It is called a Padparadscha sapphire.
These very rare, collectible gems are a pink-orange color. Some people refer to it as salmon. The word Padparadscha actually comes from Sanskrit, meaning lotus blossom.
The majority of these stones come from Sri Lanka. Large commercial-quality blue sapphires are rare, but more available than large fine-quality ones. As a result, size makes more of a difference in the price of fine-quality sapphire. Sapphire Quality Factors. Madagascar is a relative newcomer as a major sapphire source, but its stones can have an intense blue color that rivals the finest from more traditional sources. Some pink sapphires have intensely saturated color.
These sapphires range from yellow to a deep yellow-orange color called golden to highly saturated reddish orange. Courtesy: Varujan Arslanyan. These long, thin, intersecting inclusions of the mineral rutile are called silk.
This arrangement can produce the star effect in corundum. Generally, inclusions make a stone less valuable. Even so, inclusions can actually increase the value of some sapphires. Many of the most valuable Kashmir sapphires contain tiny inclusions that give them a velvety appearance. Tiny inclusions create magnificent reflections of light known as the star effect.
Oval shapes with triangular and kite-shaped facets on the gem's crown top portion and parallel rectangular facets on the gem's pavilion bottom portion are very common for corundum of all colors. Courtesy: Lewis Allen. These sapphires are miniature works of art that have been expertly cut into custom designs. Courtesy: Mark Gronlund, Umatilla, Florida. Besides coming in all colors, corundum also comes in all cutting styles. Courtesy: Ballerina Gems. The incredible blue sapphire in the center of this ring weighs Sapphires are available in all sizes, shapes, and colors.
Eduard J. Find a Retailer learn more. A rarity in nature, this gem is well-known for its ability to promote peace, calm, and spiritual awakening. White Sapphire: Contrary to beliefs, white sapphires are not white, they are colorless and transparent. This rarest type of sapphire is pure corundum without the presence of any trace mineral within.
Currently, white sapphires are becoming a popular choice for engagement rings as a diamond alternative due to their close resemblance and affordability. Padparadscha Sapphire: One of the rarest and coveted sapphires is the padparadscha sapphires. The name is derived from a Sinhalese word signifying aquatic lotus blossoms that have an unusual salmon color. The color range of this gem falls within the blend of two colors, namely pink and orange.
The distinctive beauty of this gem, combined with its spectacular hue makes these sapphires an absolute treat for the eyes. This phenomenon simply indicates the presence of a six-rayed star, which can be seen floating on the surface of a cabochon sapphire.
This gives them the name of star sapphires. They are available in almost all colors, although yellow, green, and orange star sapphires are uncommon. Parti-Colored Sapphire: This sapphire-kind shows a combination of different colors within itself. Under daylight, they exhibit the basic hues from blue-purple, while under incandescent light the shade ranges from violetish purple to a very strong reddish-purple.
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