Diamond Fluorescence Gia

Fluorescence is the visible light some gemstones emit when they are exposed to invisible ultraviolet uv rays.

Diamond fluorescence gia.

A study performed in 1997 by the gia found that the level of fluorescence has no widely perceptible effect on the color appearance or transparency of diamonds when viewed table down upside down. It is not a grading factor like the gia 4cs color clarity cut and carat weight. In natural diamonds blue is the most common color of fluorescence but other colors may be visible. A gia study of diamond fluorescence.

Fluorescence is the visible light some diamonds emit when they are exposed to invisible ultraviolet uv rays. Gia diamond grading reports and diamond dossiers describe a diamond s fluorescence by its intensity none faint medium strong and very strong when compared to masterstones used in the lab. The gia found that 25 to 35 percent of diamonds have some degree of fluorescence. The gia grades fluorescence in diamonds as none faint medium strong and very strong.

So if you re wondering what diamond fluorescence is think about how u ltra violet light makes your whites look whiter and your blacklight posters glow. In the table up position diamonds of strong or very strong fluorescence appeared to have better color than less fluorescent stones. However the way you perceive a diamond s color grade may be affected by the extent to. While there are many false and misinformed opinions on whether the presence of fluorescence in a loose diamond is good or bad it s best to consider the gia s in depth long running scientific study of fluorescence.

Locations in los angeles and carlsbad california as well as new york city. This is the same effect the diamond has under the uv rays. Offering online and on campus education diamond grading and identification services and scientific instruments. In the same way some diamonds fluoresce when they re under uv light.

Gia studies show that for the overwhelming majority of diamonds the strength of fluorescence has no widely noticeable effect on appearance. A nonprofit educational resource for the gem and jewelry industry. According to the gia fluorescence is the visible light that a diamond emits when it is exposed to the uv rays the strength and intensity of fluorescence determines its diamond fluorescence gia certification grade. Diamond fluorescence influences a diamond s color grade fact.

On a gia diamond grading report fluorescence refers to the strength or intensity of. Fluorescence is the visible light that a diamond emits when it is exposed to the uv rays. Gia considers diamond fluorescence an identifying characteristic.