How can you tell if a diamond has been treated?

Because there is no way to see if a diamond has been treated, it is important to have a diamond grading report from an independent lab like GIA. As part of its grading process, GIA tests all diamonds for treatments; if the diamond is treated, it will be disclosed on the certificate.
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Are treated diamonds worth less?

PRO'S OF PURCHASING AN ENHANCED DIAMOND

An enhanced diamond is generally going to sell for 30-50% less than a “natural” diamond of the same carat weight and quality specifications. You'll also get a colorless, eye-clean diamond which otherwise would be very expensive.
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What does it mean when a diamond has been treated for color?

Color Treated Diamonds, however, are relatively inexpensive as their color is added artificially. They are, essentially, color enhanced diamonds. The particular color of your color treated diamond will add luster and radiance to your unique diamond otherwise invisible to the naked eye.
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What does it mean when a diamond has been treated?

This is a controlled heating and cooling process which is often used after irradiation to change a diamond's color to brown, orange, or yellow. It has been reported to produce pink, red, and purple colors as well.
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Does GIA certify color treated diamonds?

GIA will issue reports for treated diamonds that have been laser drilled or HPHT processed, disclosing the presence of treatments on the report. As a further precaution, GIA also laser-inscribes the girdles of diamonds it identifies to be color treated.
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5 Ways To Tell If A Diamond Is FAKE or REAL



How do you tell if a diamond is enhanced?

If you hold a diamond up and you twist it in the light and you see a pink sparkle, that's a property of the glass like material used for enhancement. Diamonds do not sparkle pink. The enhanced diamond will sparkle all the normal colors AND pink.
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What is proven when a diamond has a flash effect?

"flash effect" is one of the most important visual features of filled breaks in a diamond. In dark field illumination (left), this effect is a very characteristic yellowish orange; it changes to a distinctive blue when the stone (here, no.
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Are enhanced diamonds worth buying?

Overall, color and clarity enhanced diamonds offer superb value when looking for high quality, larger or more affordable options of real, naturally mined diamonds. So whether you're looking to purchase on a budget or to upgrade the size and appearance of your rock, these may be perfect for you.
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Do diamonds change color in light?

Some diamonds fluoresce when they are exposed to ultraviolet (UV) rays from sources like the sun and fluorescent lamps. This can cause them to emit a bluish light or more rarely, a yellow or orangy light. Once the UV light source is removed, the diamond stops fluorescing.
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Can you remove inclusions from a diamond?

First a very tiny laser hole is drilled to access an unsightly inclusion. Once a passageway has been opened up, the diamond is boiled in acid or other chemicals to bleach the inclusion. Sometimes the inclusion is removed by burning it away with the laser.
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Can a diamond change color over time?

Do Diamonds Change Color Over Time? As you can see, a diamond's color is determined by its atomic structure. This structure is produced by a series of complex chemical reactions that happen deep within the earth. And since it's impossible to change a diamond's chemical makeup, it can't change color over time.
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Can you turn brown diamond clear?

Heat Pressure And High Temperature (HPHT) Treatment

By making some tweaks in the process recipe, the same technique can also be used to turn brownish diamonds into colorless stones. On a microscopic scale, subjecting a diamond to high heat and pressure will cause changes to take place within its molecular structure.
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Can diamonds be treated to change color?

Irradiation and heat:

Neutron irradiation in a reactor and high-energy electron irradiation in a particle accelerator are now the most common treatment methods. Heating irradiated diamonds to above 500o C will change most blue-to-green colors to brownish or orangy yellow to yellow, or, in rare cases, pink to red.
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Do clarity enhanced diamonds look fake?

It's a relatively common misconception that clarity enhanced diamonds are fake – that's not the case. All clarity enhanced diamonds are natural by definition – that's why they have natural inclusions and imperfections that need fixing.
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What does it mean when a diamond is laser drilled?

Laser drilling is a treatment used to reduce the visibility of dark natural inclusions that reduce a diamond's clarity grade. It involves drilling with a laser beam a minute tunnel through the diamond, in order to remove a dark spot buried inside the stone.
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Can you tell the difference between F and G color diamonds?

Conclusion. Viewed with the naked eye, it's virtually impossible to see any difference in color between a G color diamond and a diamond with a D, E or F color grade. Despite this, G color diamonds are anywhere from 10 to 25% cheaper than diamonds in the “colorless” range of the scale.
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How do you tell if a diamond is real with a flashlight?

Simply hold the loose diamond near a light source, like a lamp, and see the reflection of the light from the diamond. This test will be best if there is another gem that you'll compare along with it, like cubic zirconia. You'll see how different their effects are to light.
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Do fake diamonds glow under UV light?

Ultraviolet Light: About 30% of diamonds will glow blue under ultraviolet lights such as black light. Fake diamonds, on the other hand, will glow other colors or not at all.
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Why do my diamonds glow in blacklight?

Diamonds glow in black lighting due to a phenomenon called fluorescence and roughly 35% of natural diamonds exhibit some degree of this effect. In nature, the presence of certain chemical impurities within the diamond's composition triggers this glowing effect in the presence of an ultraviolet light source.
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How do you tell if a diamond has been fracture filled?

The best way to detect fracture filled diamonds is under a gemmological microscope. The filling generally leaves a faint or strong neon colour in the stone, which when observed face up is either invisible or could easily be mistaken for normal, spectral colours.
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Are lab grown diamonds enhanced?

Lab-created diamonds are an alternative to enhanced diamonds that are still less expensive than natural diamonds. Lab-created diamonds mirror natural diamonds in their physical and optical properties. They're certified and maintain their durability and beauty over time.
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How long will clarity enhanced diamonds last?

The diamond clarity-enhancement process should last forever. However, using a direct torch flame on the diamond or soaking the diamond in acid will damage the enhancement.
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How can you test a diamond at home?

This one's easy: Get a glass and fill it with water (it doesn't matter what type of water you use). Drop the diamond into the glass of water. Due to the high density of diamond, when dropped into water a real diamond will sink. If the diamond floats to the top or middle of the glass, it's fake.
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How does a real diamond sparkle?

Diamonds get their brilliance from three things: reflection, refraction and dispersion. Reflection is the light that hits the diamond and is immediately bounced back up, giving it an instantaneous shine. While this glimmer is impressive, it's only the very tip of the true radiance a diamond displays.
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What does a real diamond look like in sunlight?

We all love how a diamond shines in the sunlight. Test your stone by putting it in direct sunlight and examining the colors it reflects. A real diamond will reflect both rainbow colors as well as white light. If you only get one of the two, then the diamond isn't real.
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