What does it mean when your diamond glows in blacklight?

How do you tell if diamonds are real with a black light?

Most diamonds will reveal blue florescence under a black light; therefore, you’ll see a medium to strong color of blue, which means the diamond is real. If you don’t see the blue color and instead see a slight green, yellow or gray fluorescence then this usually indicates the gem is not a real diamond.

Do fake diamonds glow in the dark?

Diamonds are expensive because they’re beautiful and rare. But fake diamonds often sell for a lot of money, too. … The famous Hope Diamond looks blue under normal light (above), but it glows bright red (below) after being exposed to ultraviolet light.

What color do diamonds glow under a blacklight?

When a diamond is exposed to ultraviolet light (also known as blacklight), it glows blue. Sometimes you might see another color too like yellow, green, red & white, but blue is the most common fluorescent color in a diamond.

What color do real diamonds shine?

A real diamond appears gray and white inside (brilliance) when held to the light and can reflect rainbow colors (fire) onto other surfaces. A fake diamond will display rainbow colors within the stone when held up to light.

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