Diamond Fluorescence Gia

The gia found that 25 to 35 percent of diamonds have some degree of fluorescence.

Diamond fluorescence gia.

In assigning a diamond color grade gia examines the gem in a highly controlled viewing environment designed to minimize the influence of fluorescence and to produce an accurate and objective assessment of the diamond s color. Fluorescence is the visible light some diamonds emit when they are exposed to invisible ultraviolet uv rays. On a gia diamond grading report fluorescence refers to the strength or intensity of the diamond s reaction to long wave uv which is an essential component of daylight. Gia studies show that for the overwhelming majority of diamonds the strength of fluorescence has no widely noticeable effect on appearance.

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. In the table up position diamonds of strong or very strong fluorescence appeared to have better color than less fluorescent stones. 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.

This is the same effect the diamond has under the uv rays. Fluorescence is the visible light that a diamond emits when it is exposed to the uv rays. Offering online and on campus education diamond grading and identification services and scientific instruments. 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.

However the way you perceive a diamond s color grade may be affected by the extent to. A gia study of diamond fluorescence. On a gia diamond grading report fluorescence refers to the strength or intensity of. Locations in los angeles and carlsbad california as well as new york city.

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. On a gia diamond grading report fluorescence refers to the strength or intensity of the diamond s reaction to long wave uv which is an essential component of daylight. Gia considers diamond fluorescence an identifying characteristic. A nonprofit educational resource for the gem and jewelry industry.

In the same way some diamonds fluoresce when they re under uv light. Diamond fluorescence influences a diamond s color grade fact. Fluorescence is the visible light some gemstones emit when they are exposed to invisible ultraviolet uv rays.