Does fluorescence matter in a diamond?

Fluorescence can be good or bad: it can improve a diamond’s color or make the diamond look hazy. … In fact, the slight fluorescence can make the diamond appear more white. But when fluorescence makes the diamond hazy, the stone is less transparent.

Is fluorescence in a diamond good or bad?

In most cases fluorescence is simply an identifying characteristic and not a performance characteristic, and is therefore NEITHER good nor bad. In some cases, strong or very strong fluorescence can make a diamond appear cloudy, diminishing its transparency and eye appeal.

What is the best fluorescence for a diamond?

It is actually recommended to consider fluorescent diamonds in I, J, K or L colors. The lower colors may visually appear half or one grade higher as a result of the fluorescence. More important fluorescent diamonds have about a 10% to 15% discount against Faint or None fluorescent diamonds.

How does fluorescence affect a diamond?

Fluorescence refers to a diamond’s tendency to emit a soft colored glow when subjected to ultraviolet light (such as a “black light”). … Because the fluorescent glow is usually blue (which is the complementary color to yellow) fluorescence can make diamonds of I-M color appear up to one grade whiter.

Are fluorescent diamonds cheaper?

Are Fluorescent Diamonds Cheaper? Yes and no. Fluorescent diamonds do trade at slightly different prices than non-fluorescent diamonds, but not the ones you want. I-M diamonds with strong fluorescence trade at a 2-3% price premium to non-fluorescent diamonds with similar color grades.

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Why does my diamond look blue?

Fluorescence is when a diamond shows a soft glow under ultraviolet (UV) light. This is caused by certain minerals in the diamond. This effect is totally natural, appearing in a third of all diamonds. Most diamonds with fluorescence will glow blue.