The main difference between sapphire and topaz is the fact that sapphire is a gemstone, whereas London Blue topaz is a nesosilicate mineral. This makes sapphires considerably more valuable than topaz stones.
Is Topaz or sapphire more expensive?
Sapphire vs topaz: pricing
Dark toned sapphires never have high values, whereas highly saturated ones come at a high cost. Other than that, synthetic sapphire is cheaper than natural sapphire. … The pricing of this gemstone also depends on its clarity and tones. Imperial topaz is the most valuable topaz.
Is Blue Topaz better than blue sapphire?
Blue sapphire has a rating of 9 on the Mohs scale of mineral hardness, which makes it one of the hardest gemstones available today. Blue topaz, on the other hand, has a rating of 8, which means it is also a durable gem and is suitable for everyday wear.
How can you tell the difference between blue topaz and sapphire?
The surefire way to tell the difference between the three is to do a refractive index test on them. Sapphire has an RI of 1.762 – 1.768, aquamarine is 1.577 to 1.583, and topaz is 1.609-1.643.
How much is blue topaz worth?
The prices of topaz are, like any gem, dependent on quality. Still, a few generalizations can be made. Blue topaz, the most common variety seen in jewelry today, has been produced in such quantities that today it is generally available for $25/ct.
How much is a 1 carat sapphire worth?
Sapphires can come as cheap as $25 per carat, to over $11,000 per carat. A blue sapphire around 1 carat is likely to cost from as little as $450 to $1,600, depending on quality.
What is the strongest gem on earth?
Diamond is the hardest natural material in the world.
Is there a London Blue Sapphire?
Sapphire is a very dark, rich and deep blue. While London Blue topaz does have its own impressive inky hue, it’s quite a bit lighter than a sapphire stone.
Are blue zircon and blue topaz the same?
While blue zircon shares a similar name with the synthetic cubic zirconia, it’s actually a very real gem. Not only does blue zircon occur in nature, it compares favorably to the more widespread blue topaz, offering a similar range of blue shades.
Is Aquamarine more expensive than blue topaz?
One pair that is difficult to tell apart is the Aquamarine and Blue Topaz stones. Physically, they are very hard to tell apart but in reality, an Aquamarine is much more costly than Blue Topaz. Some people seek advantage by selling Blue topaz in place of Aquamarine to make great profit.
What is cornflower blue sapphire?
Cornflower blue sapphire is the most sought after and highly precious color variety of Blue Sapphire stone. This gemstone is characterised by its vivid, pure blue hue (closely resembling cornflower color) that is usually found in medium to light tone.
Which is more expensive blue sapphire or aquamarine?
Affordability. Blue Sapphire: Thanks to its exceptional beauty, long-standing association with royalty, and ‘precious stone’ categorization, blue sapphire is undoubtedly the more expensive gem of the two.
Is Sapphire better than diamond?
Although it is more damage-prone than a diamond, the high sapphire durability makes it a more popular choice than other gemstones, such as emeralds or rubies. Diamonds refract more light than sapphires do, appearing more brilliant, adding to their value.
Why is blue topaz so cheap?
Blue topaz makes a much affordable option than an aquamarine gem, due to its availability. Pure aquamarine, a rarer gemstone, comes with a heftier price tag—just like its sibling, the emerald, from the same beryl family of minerals.
How much does blue topaz cost per carat?
When it was first introduced to the market, treated blue topaz sold for $20 to $40 per carat. But oversupply led to huge drops in wholesale prices, down to a few dollars or less per carat. Today, blue topaz is basically a mass-market gem, and price is often the most important consideration for many buyers.
Why is Topaz so cheap?
The main reason for the popularity of blue and white topaz is a very simple one: price. White topaz is cheap because it’s the most common color that this gemstone is found in. Blue topaz, while quite rare in nature, can be created by irradiating and heating colorless topaz making it one of the cheaper colors.