What birthstone is September?

Sapphire September Birthstone: Sapphire Gemstones | Learn What Birthstone is September.

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People also ask how much is a real alexandrite ring?

Low quality alexandrite may be found for as little as $500.00 a carat, but high quality alexandrite is on average around $5,000 - $10,000 per carat and may go up to as much as $15,000 per carat depending on the gemstone's clarity, cut, and, most importantly, color and color change characteristics. People also ask what stone is similar to alexandrite? Only sapphires and garnets can show any real resemblance to alexandrite. Color change sapphires are basically known to occur in two types; the ones that change from blue to purple and the ones that change from green to red.

What is the largest alexandrite ever found?

Discovered in 1967 in Bahia, Brazil, the Sauer Alexandrite is the world's largest uncut Alexandrite, weighing at a massive 122,400 carats (or approximately 54 pounds)! Named for its discoverer, jeweler and collector Jules Roger Sauer, the Sauer Alexandrite was put on display in Sauer's own museum in 1989. Is alexandrite still mined? Presently, small quantities of Alexandrite are mined in Brazil, Sri Lanka, India, Myanmar, Tanzania and Zimbabwe. Most of the current production is alluvial where the alexandrite constitutes a small percentage of the overall chrysoberyl production.

Is alexandrite heat sensitive?

Alexandrite is a very strong gemstone, with a hardness rating of 8.5, but it can experience cracks or internal fissures from extreme pressure. Alexandrite is not a heat sensitive gemstone, so I do not think the heat from the repair job could have caused the crack. Is alexandrite cleavage or fracture? Alexandrite Cleavage Imperfect prismatic Fracture Weak, conchoidal Hardness 8.5 Optic nature Biaxial + 9 more rows ?

Also, what is the hardest precious stone?

diamond The diamond is the hardest gemstones, while talc is a very soft mineral. The scale by which the hardness of minerals is measured is the Mohs Hardness Scale.