Analysis of Diamond Fluorescence Reaction: Understanding Characteristics and Cost-effectiveness

When it comes to diamond fluorescence, many consumers wonder: Is it a good thing or a bad thing? In fact, fluorescence is not a defect of diamond, but one of its natural characteristics. Even the Gemological Institute of America (GIA) only describes it as a characteristic and does not rate it as good or bad.

Fluorescence refers to the natural reaction of the chemical elements in diamonds when exposed to ultraviolet light. This phenomenon is similar to the effect that banknotes or white clothing will glow under ultraviolet light. Some diamonds will fluoresce blue-white under ultraviolet light, while a few may fluoresce yellow or other colors.

Diamond fluorescence level

According to GIA standards, the intensity of diamond fluorescence reaction is divided into the following five levels:

• None: No fluorescent reaction.
• Faint: A slight fluorescent reaction, almost unnoticeable.
• Medium Blue: Medium intensity blue fluorescence reaction.
• Strong Blue: Strong blue fluorescence reaction, more obvious under ultraviolet light.
• Very Strong Blue: Very strong blue fluorescence reaction, which is very obvious in ultraviolet light environment.

Effect of fluorescence reaction on appearance

Different people have different views on fluorescent reactions. Some people deliberately choose diamonds with fluorescent reactions because they are very attractive for the special effects they show under ultraviolet light; others avoid choosing diamonds with fluorescent reactions, believing that this may affect the purity or fire of the diamond.

According to GIA research, in most cases, the intensity of fluorescence has no noticeable effect on the appearance of the diamond, especially under natural light, where the fluorescence reaction is almost unnoticeable. Only under sunlight with strong ultraviolet light can diamonds with strong fluorescence be detected by the naked eye. Therefore, as long as a diamond is not a “cream stone” (one that has excessive fluorescence resulting in a cloudy appearance), fluorescence will not negatively affect its beauty.

The impact of fluorescence reaction on price

Generally speaking, diamonds with fluorescence are less expensive than those without, making them a good value for money option. As long as you check carefully before purchasing to make sure that the fluorescence reaction of the diamond will not affect its appearance, such a diamond is definitely worth considering.

Explore our collection of natural diamonds or learn more about our cultured diamond options to find the perfect diamond for you.

Tips for Buying Diamonds with Fluorescence

If you are interested in fluorescent reactions, here are some purchasing suggestions:

• Physical Inspection: Look at the diamond carefully before purchase to make sure that fluorescence does not affect its appearance, especially under natural daylight and ultraviolet light.
• Avoid cream stones: If the fluorescence is too strong and causes the diamond to look cloudy, it is not recommended to purchase.
• Pursuing value for money: Diamonds with slight or moderate fluorescence reactions are often more affordable and are a cost-effective choice.