When you learn about diamonds, you often hear the word none.So none in diamonds What is that? Let's find the answer in the article below!

What is diamond fluorescence?

Diamond fluorescence is the visible light some diamonds emit when they are exposed to invisible ultraviolet (UV) light. On a GIA diamond grading report, fluorescence refers to the strength or intensity of a diamond's reaction from ultraviolet light to long-ultraviolet rays which are an essential component of daylight. The light emitted lasts as long as the diamond is exposed to the UV source.

  • Diamond Plate
  • Diamond jewelry

According to GIA, diamond fluorescence is only an identification factor and not a grading factor like the GIA 4Cs (color, cut, clarity, and weight). The diamond fluorescence scale is divided into 5 levels: Colorless - Light - Moderate - Strong - Very Strong. This scale is obtained when comparing diamonds in the laboratory.

What is None in diamond?

The term None in diamonds refers to diamonds that do not have any fluorescent light. When we shine a ray of light on a diamond, the scattered light will reveal its fluorescence spectrum. We have 4 quantitative spectra including: Very Strong (Very strong fluorescence), Strong (Strong fluorescence), Medium (Faint fluorescence), None (no fluorescence).

In particular, none means no fluorescence can be seen when light is shined on it. Visually, this may not contribute to the beauty of the gem. However, fluorescence most realistically reflects the color and color change tendency of each diamond over time. With a light yellow diamond, the fluorescence will appear stronger than with a colorless diamond. At the same time, diamonds with D to H water will have more blue fluorescence than other diamond spectra.

See more : GIA diamonds

Therefore, a diamond determined to meet the None standard will bring perfect beauty and lasting value to the user.

This creates a different value between diamonds. Although this value is not really tangible and has a strong impact like the 4C standard. But in reality, identifying diamonds based on fluorescence will help jewelers as well as jewelry connoisseurs. Gain accurate knowledge and value of natural diamonds.

Advice on diamond fluorescence

It depends on your preferences to determine whether a diamond's fluorescence is good or bad

Fluorescence can often improve the color of diamonds

Strong blue fluorescence does not necessarily mean there will be a negative impact on the overall color and appearance of the diamond.

A diamond's faint fluorescence can actually save you money without having to miss out on brilliance

When purchasing fluorescent diamonds, always check the retailer's return policy

Buy fluorescent diamonds from a reputable retailer to ensure they are high quality

When shopping, you can ask to see the diamond under UV and normal light, as well as ask about how it looks when exposed to daylight.

Back to blog