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Gem-quality diamonds sparkle under any available light, even moonlight, starlight, firelight and flashlight.

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Q: Do real diamonds only sparkle under bright light?
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Related questions

What makes a diamond sparkle nicely when lights strike it?

Refraction and reflection both contribute to the sparkle you see in a diamond. Diamonds naturally have a high refractive index, meaning they are 'light friendly'. This property makes diamonds sparkle under any available light: moonlight, starlight, flashlight, firelight and so forth. A well-cut diamond also has reflective qualities: the diamond cutter designed the cut so that light taken in from any facet reflects on other facets and back into the eye of the beholder.


Why do diamonds glow in darkness?

Some diamonds -- not all -- display fluorescence once the light source is removed. In this case, the diamond absorbs light of a certain length, and then emits light of a longer wave length. Diamonds usually emit red light under long-wave UV light. Diamonds also emit light under x-ray radiation.


What does a real diamond look like?

You can click the links, below, to view photos of a raw diamond and of a polished diamond. Their are many diamonds that appear to look like their real. The best way to tell is to put the diamond in a bright light. If the diamond only gives off a little sparkle and shine it most likely is not real.


Semen under black light?

it is very bright


Does a real diamond turn purple under an ultra light?

If the diamond has natural fluorescence -- about 60% of diamonds do -- then, yes, it will glow under black light.


What color is semen under a black light?

bright purple. (ultra violet).


Do fake diamonds glow under a black light?

Some yes, some no. Note that a black light is not a valid test for a diamond.


Why do the mineral water sparkle?

It doesn't - the 'sparkle' is carbon dioxide gas injected into the drink under pressure.


Does a diamond shine or does it reflect?

reflectAnother AnswerCut and polished diamonds both shine and reflect under available light.


Does a diamond sparkle in water or in air?

Given a light source and movement, a diamond will sparkle in air or under water. +++ I would expect the effect to be greater in air than in water though, because the density difference between diamond and surroundings are that much greater.


In the bright sunlight what are the changes when a plant is put under a jar?

In the bright sunlight there are changes that occur when a plant is put under a jar. The plant would most likely shrivel from too much light.


Can you put your hair under a bright light instead of the sun after highlighting your hair with lemon juice?

a possibilty