What is proven when a diamond has a flash effect?

The presence of one or more of these features in a diamond provides evidence that the stone has been filled: "FLASH EFFECT": One of the most common and obvious characteristics of a Yehuda treated stone.
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What is a fracture filled diamond?

Fracture filled diamonds are injected with a glass-like resin. The resin flows into the gaps, filling and sealing small cracks. The process makes diamond's “fractures” invisible to the human eye. Fracture filling can cause cracks and feathers to disappear as if by magic.
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How can you tell a diamond from a crystal?

Look down at the top of the crystal and count the sides.

Diamonds are cubic, while other similar stones like quartz are hexagonal. Look down at the point of the crystal and count the number of sides. If there are 4 sides, there's a possibility the crystal is a diamond.
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What is fracture filling?

Fracture filling is a diamond treatment developed to help conceal a diamond's flaws. The process of fracture filling using special glass formulas that have a refractive index close to that of a diamond was pioneered by Zvi Yehuda of Ramat Gan, and the term “Yehuda” is now a brand name used for fracture-filled diamonds.
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Why do diamonds shatter?

That's because diamonds are durable, but they have low tenacity. Meaning, brute force at a soft point can completely shatter or smash a diamond. However, if you rub a piece of metal against a diamond, there's not enough strength to scratch the gemstone. Of course, anything is possible with enough pressure.
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How to identify fracture filling in diamond | Flash Effect | Learn Gems



Can you fill a crack in a diamond?

Diamonds do not crack.

Diamonds will not crack a little. You will either chip the diamond completely or not all. Often a client will see an inclusion in a diamond and think it is a crack -rest assured these are just inclusions.
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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 real diamonds sparkle?

The way that diamonds reflect light is unique: the inside of a real diamond should sparkle gray and white while the outside should reflect a rainbow of colors onto other surfaces. A fake diamond, on the other hand, will have rainbow colors that you can see inside the diamond as well.
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Do diamonds glow under UV light?

You will see a glow in 30% of diamonds under a uv light. When exposed to uv light, there will be a diamond glowing different colors. 99% of the time, the glow is blue, but on rare occasions, diamonds glow white, yellow, green, or even red in color.
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Can 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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Is an enhanced diamond real?

A clarity enhanced diamond is a natural diamond! A clarity enhanced diamond is one that originally had inclusions that were visible to the naked eye, but with modern techniques the inclusions are "filled," making them less visible.
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Do Clarity enhanced diamonds hold their value?

Do Clarity Enhanced Diamonds Hold their Value? Yes, clarity enhanced diamonds like all other diamonds hold their value according to normal price fluctuations of diamonds as well as taking into account current market values and conditions.
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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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What does laser drilled diamond mean?

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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How do you clean a broken diamond filled?

Steam cleaning and ultrasonic cleaners are safe processes for cleaning your clarity enhanced diamond. Most jewelers employ these dual techniques of steam and ultrasonic cleaners when offering to clean your ring in their store. So, they are just fine for precious diamonds.
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Why does my diamond reflect rainbow?

One factor that determines a diamond's level of brilliance is the cut. Real diamonds sparkle rainbow colors when their light is deflected to other surfaces. In other words, colors shoot from the diamond when the direct light hits the stone. This flash of colors from a diamond is called “fire.”
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How can you tell if a diamond is real by water?

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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Should real diamonds shine a rainbow?

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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Why does my diamond glow in the dark?

What is diamond fluorescence? Fluorescence is the glow you sometimes see when an object emits visible 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.
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What is moissanite vs diamond?

Although they look similar at first glance, moissanite is very different from a diamond. Diamonds are made of carbon, whereas moissanites are made of pure silicon carbide — an extremely rare, naturally-occurring mineral.
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What are chocolate diamonds?

What are Chocolate Diamonds®? Chocolate Diamonds are Le Vian's brand of brown or golden-hued natural diamonds, carefully selected for their rich deep colors. Only natural diamonds that meet Le Vian's exacting standards of clarity, quality, cut, and color will be worthy of the name Chocolate Diamond®.
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Can you accidentally chip a diamond?

Any gem will break, not just chip, if it is hit hard enough. Diamonds are very tough, but remember that if a cutter can purposely cleave (split) a diamond by giving it a sharp blow in the right direction, you can achieve the same thing if you hit it hard enough accidentally.
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What is a feather in a diamond?

Feather. A general term for any fracture or fissure in a diamond that extends to the surface. In higher clarity diamonds, feathers may be so shallow or low-relief as to be difficult to find even under 10x magnification.
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Can you break a diamond with a hammer?

To say something is “hard” is not the same as saying it is “strong”. As an example, you can scratch steel with a diamond, but you can easily shatter a diamond with a hammer. The diamond is hard, the hammer is strong. Whether something is hard or strong depends on its internal structure.
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