How can you tell a ruby stone?

The rub test includes rubbing your ruby across a smooth (but hard) surface, like glass, and seeing if the gem leaves any color behind. Glass only has a hardness of 5 on the Mohs scale, so it's much softer than actual rubies. Real rubies and some gems shouldn't leave any color behind, but cheap fakes or imitations can.
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How can you identify a ruby?

Tell by the color and the shine.

Real rubies glow with a deep, vivid, almost "stoplight" red. Fake gems are often dull: they are "light, but not bright." If the gem is more of a dark red, then it may be garnet instead of a ruby.
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How do you test a ruby at home?

Grind a coin or fingernail into your ruby's surface and see if it is getting scratches. If your stone is showing a scratch, then it is not a real ruby. Scratch the ruby against a hard surface such as a piece of clear glass or a porcelain tile. Keep in mind to check if the ruby stone leaves a red mark on the surface.
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What does a pure ruby look like?

The finest ruby has a pure, vibrant red to slightly purplish red color. In most markets, pure red colors command the highest prices and ruby with overtones of orange and purple are less valued. The color must be neither too dark nor too light to be considered finest quality.
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How do you tell the difference between a ruby and a garnet?

Rubies have a deeper and more distinct red color, while garnets, in comparison, appear lighter and paler. In addition, a ruby could perhaps even seem slightly purple, some would even say bluish. But if the hue of the stone leans towards shades such as orange or yellow, you're probably looking at a garnet.
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How to Tell if a Ruby is Fake: Detective Gigi and the Case of the $2 Ruby



How can you tell a natural ruby from synthetic?

Chemical traces are left in the stone of a lab-created ruby and this is not seen in natural rubies. Minimal internal flaws, higher quality at a lower price and a larger ruby for the same price as a smaller one will tell you that it is synthetic.
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Do rubies glow under black light?

Answer: All rubies fluoresce, whether they're mined or created in a lab, since natural and synthetic ruby gemstones have the same chemical composition and physical properties.
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Is there a tester for rubies?

Dupeakya diamond tester is an electronic instrument designed and manufactured according to the thermal conductivity of diamonds to identify the true and false diamonds. It can also be used for testing sapphire, ruby, crystal, agate and other stones.
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What does a ruby look like raw?

It is much easier to tell if a ruby is real when it is raw and uncut, for a variety of reasons. Rubies like to grow in a flat, hexagonal shape. If the uncut gem shows this natural growth characteristic, along with parts of its host rock (marble or alkali basalt) still attached, it is very likely it is a real ruby.
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How can you tell if a gem is real at home?

A genuine diamond should be able to cut through glass easily, while fakes cannot. Sapphires come in right behind diamonds in terms of gemstone hardness. Since it is just a strong and durable stone, there should be no scratches. If there are nicks on the stone, then it is most likely a fake gemstone.
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How much is a ruby worth?

Rubies can run as little as $1 a carat to $100,000+ a carat, depending on the 4Cs. One of the most expensive rubies ever sold is the Sunrise Ruby, selling for over a million dollars a carat at 25 carats.
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Can a ruby be scratched?

Ruby Scratch Tests

As we mentioned earlier, Ruby is one of the hardest gemstones, therefore it should not be easily scratched: With a damp of cloth or a toothbrush clean the ruby, in order to remove any debris or marks. Then dig your fingernail into the gemstone to see if you can leave a scratch.
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What scratches a ruby?

You can use your nail, a coin, a stone, or anything else, and there must be no scratches on the surface afterwards. Remember, ruby is second only to diamond in hardness. This means that only a diamond can scratch a ruby.
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Is there a machine to test gemstones?

GIA iD100® Gem Testing Device

The GIA iD100® gem testing device combines advanced spectroscopic technology and more than 60 years of GIA diamond and gemstone identification research to deliver a sophisticated and easy-to-operate desktop instrument to screen your stones.
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Is there a gem detector?

GER DETECT Titan 500 Professional Diamond Metal Detector - Discover Gemstones and Diamonds - Long Range Underground Depth Scanner.
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Do rubies sparkle?

Do rubies sparkle? Yes. However, it sparkles differently than diamond. Specifically, its sparkle is a subtle red and orange/pink, whereas diamond gives off an extreme rainbow and white sparkle.
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Do rubies glow pink?

Some rubies (synthetic and Burma) will appear pink to red while many others (Thai for example) will appear gray. A 405nm laser will really light up a lot of rubies. Charles Gould If corundum is red, it is ruby. All other different daylight colored corundums are sapphires.
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What do rubies look like in their natural state?

Rubies are gem corundums with a dominant red color. The color can range from orangy red to purplish red or brownish red. The most desirable color range is a pure vibrant red to a slightly purplish red. The red color of ruby is produced by the presence of chromium in the gem.
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Do real rubies have bubbles?

Gas bubbles are in the glass and not the corundum (ruby) part of the stone. Gas bubbles do not occur "free floating" in ruby or sapphire.
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Which is more expensive a ruby or a garnet?

Typically, you can expect to spend more for a ruby than a garnet. Rubies are rarer, so they're prized higher by gemstone buyers. Likewise, larger rubies are also rarer and have higher values than smaller ones.
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Are rubies just red sapphires?

Rubies Are Just Red Sapphires

Used extensively in jewelry as well as other forms of art, this gemstone has retained its popularity across the world. It's no wonder these gems are so sought after; transparent rubies of a large size are even rarer than diamonds!
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