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The truth about fluorescence

October 12, 2019

In GIA diamond Certificate, besides Carat Weight, Colour, Clarity, Cut, Polish and Symmetry, you will find the word Fluorescence.

In the market place, there is some controversy regarding Fluorescence. A diamond with Fluorescence; is it good or bad?

About 25% to 35% of natural diamonds have fluorescence, ranging from None, Faint, Medium, Strong and Very Strong. The truth is; if a diamond with Fluorescence has a hazy or oily look (which may appear in extremely strong fluorescence, which is only found in 0.1% of all the diamonds in the world) then, it is less desirable. Otherwise blue fluorescence actually enhances the beauty and colour of a diamond, making it sparkles more.

With lab grown diamonds entering into our market, it is a good idea to own diamonds that have Blue Fluorescence. As lab grown diamonds do not have fluorescence, thus the fluorescence becomes an added guarantee it is a natural diamond, created by mother-earth.

GIA states that fluorescence diamonds have the same integrity as none fluorescence diamond, which means fluorescence is not a flaw as some may perceive.

In the trade, the Top colour D, is also known as Blue White Diamond, as seen in the chart below. For individuals who understands what fluorescence really is, fluorescence diamonds are highly sought after.