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| Introduction: |
The term sapphire alone describes the blue variety of gem corundum. Other colors have a color prefix, i.e., yellow sapphire, green sapphire, etc. The term ruby is reserved for corundums of a red color. In Asia, pink corundums are also considered rubies. Outside of Asia, such gems are generally termed pink sapphires. |
| Color: |
Blues in various hues. |
| Clarity: |
In terms of clarity, sapphires tend to be cleaner than ruby. Buyers should look for stones which are eye-clean, i.e., with no inclusions visible to the unaided eye. In the case of some sapphires, extremely fine silk throughout the stone can actually enhance the value. This is the case with the famous sapphires from Kashmir, which display a velvety blue color with little extinction across the face. |
| Cut: |
In the market, sapphires are found in a variety of shapes and cutting styles. Ovals and cushions are the most common, but rounds are also seen, as are other shapes, such as the heart or emerald cut. Slight premiums are paid for round stones. Cabochon-cut sapphires are also common. |
| Moh's hardness: |
9 |
| Specific Gravity: |
4.0 |
| Refractive Index: |
1.762 –1.77 |
| Countries of Origin: |
Blue Sapphire can be found in Sri Lanka, Myanmar (Burma), Pailin, Kashmir, Montana, Australia, Kanchanaburi, Nigeria. |
| History, Literature and Lore: |
The name sapphire comes from the Latin "sapphirus," which means blue. In ancient times and into the Middle Ages, all blue stones were described as "sapphire," including lapiz lazuli. By the Renaissance, it was popular among the wealthy elite. Sapphire was said to protect kings from jealousy and danger. In the 13th Century it was said to possess the power to prevent poverty, and improve people's temperaments and intellects. Truly large sapphires are quite rare. |
| How To Choose: |
Regardless of country of origin, blue sapphires usually run the full gamut of color from near colorless to blue black. The more vibrant the color, the more merit the stone has. Richer color is not necessarily better. The best blues should become more vibrant from a distance, while the stones of less merit will seem dull or black. We at INTA Gems will be more than happy to help you choose the best stone for you! |
| INTA Gems Difference: |
You can rely on INTA Gems as your fine diamond source. Our superb reputation reflects our quality, integrity and exceptional customer service. We have decades of gemstone experience, outstanding ratings, and glowing testimonials from our customers. |
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