Experts from the Gemmological Institute of Colombo, in Sri Lanka, have certified that the gem weighs a record 1,404.49 carats (nearly 10 ounces). The blue gem has been given a price tag of at least $100 million, however, its current owner, estimates that it could go for as much as $175 million, if put up for auction.
Is a star sapphire valuable?
Star sapphires and star rubies are the rarest and most valuable stones of their type. The shifting star pattern that shines within them has an otherworldly quality — perfectly symmetrical and shifting in the light.
Are star sapphires real?
Blue Star Sapphire are a rare and beautiful type of sapphire. The star which shines upon its surface is an asterism, which gives the stone a six-rayed star when viewed under light.
What color star sapphire is most valuable?
The term “star sapphire” encompasses all colors of star corundum except red, which is called star ruby. Naturally, some colors of star corundum are valued more highly than others. In general, the most prized colors are the same as the colors most valued in non-phenomenal corundum: red and blue.
How much does an original sapphire cost?
Origin. – Kashmir sapphire price per carat range stays between ₹ 50,000 and ₹ 5,00,000 plus ($750 to $7690) because of ‘true blue’ color and velvety texture associated with this origin. Ceylon blue sapphire price per carat range between ₹ 2000 and ₹ 32,000 plus ($30 to $490) because of overall decent quality.
How can you tell a fake star sapphire?
HOW TO SPOT A FAKE
- If the star is too “perfect” and the color is too blue, it’s not genuine. …
- Natural Star Sapphires have visible imperfections within the stone.
- If the bottom of the cabochon is smooth and flat, it’s fake. …
- A fake’s star will stay stationary when shining a flashlight on it and moving it in a circle!
How can you tell a real sapphire from a fake?
The Fog Test
If you’re looking at a sapphire and want to confirm it’s authenticity, just breath on it for a second. On real sapphires, the fog from your breath will evaporate very quickly (~2 seconds). If it’s fake, it may take 5 seconds or more to start evaporating and 2-3 seconds to actually evaporate.
What are blue star sapphires worth?
The blue gem has been given a price tag of at least $100 million, however, its current owner, estimates that it could go for as much as $175 million, if put up for auction. The largest blue star sapphire gem found has been given a price tag of at least $100 million.
Are star sapphires durable?
In terms of hardness, this sapphire variety ranks 9 on the Moh’s scale, which confirms that it is a durable stone that can be freely used for making fine jewelry. Clarity, on the other hand, is a more delicate feature, mainly determined by the intensity of the rutile silk (the white, star-like asterism).
What is the meaning of a star sapphire?
: a sapphire that when cut with a convex surface and polished exhibits asterism.
Is sapphire expensive than diamond?
On average, though, a one-carat sapphire will cost less than a one-carat diamond. Blue sapphires are the most expensive color because they’re the most sought after. Likewise, the more brilliant and pure the color is, the more expensive it will be.
Where are star sapphires found?
The most important deposits of fine star sapphire today are found in Australia, Myanmar (Burma), Sri Lanka and Thailand. Other significant star sapphire sources include Brazil, Cambodia, China, Kenya, Madagascar, Malawi, Nigeria, Pakistan, Rwanda, Tanzania, United States (Montana), Vietnam and Zimbabwe.
Which gem is the most valuable?
1. Blue Diamond. The stunning blue diamond is arguably the most prized of all precious gemstones. A flawless example is so rare that whenever one comes to auction it causes a huge stir in the jewelry world.
How do I value a sapphire?
A sapphire stone can always be re-cut, so clarity is probably more important. A top quality 1 to 2 carat stone might retail for prices between $800 – $1200 per carat. While quality 2 to 3 carat stones would sell for approximately double the price per carat, so that would be around $1600 – $2000 per carat.
How can you tell a good sapphire?
You want to look for a sapphire that has no inclusions visible to the naked eye. experts look at the size, location and number of inclusions to judge clarity. The less visible the inclusions are, the higher the grade. Cut: The cut is essentially what makes a sapphire really sparkle.
What is the most expensive sapphire?
Blue Belle of Asia – The Most Expensive Blue Sapphire
The Blue Belle Of Asia earns the title of the most expensive blue sapphire in the world, after selling for $17,305,996 at Christie’s Geneva in November 2014.