2023年7月18日 · GIA Diamond Grading Reports and Diamond Dossiers describe a diamond’s fluorescence by its intensity under long-wave UV light (None, Faint, Medium, Strong and Very …

2024年12月7日 · Faint fluorescence is acceptable in G color diamonds. While none is always ideal, medium to strong blue fluorescence can benefit H-Z color diamonds, as blue …

2023年12月11日 · The GIA grades fluorescence in diamonds as none, faint, medium, strong and very strong. Here are explanations of when fluorescence can lower a diamond’s quality: …

2018年3月27日 · FACT: Diamond fluorescence is not one of the 4Cs – like color, clarity, cut and carat weight – which describe the quality of a diamond. GIA considers fluorescence an …

UV diamond fluorescence occurs in about 35% of colorless (white) diamonds and can be faint or very strong. (Fluorescence is a type of glow that occurs almost immediately after exposure to …

To elaborate, if a diamond is classified as having ‘faint’ fluorescence, it does not imply that it is superior to a diamond with ‘medium’ fluorescence. It’s more about labeling the diamond with …

2024年1月30日 · Faint: A weak presence of color in the diamond, but barely noticeable. Medium: A slight hint of fluorescence in the diamond. Strong or Very Strong: Significant, observable …

Faint: Diamonds with Faint fluorescence exhibit a very slight amount of fluorescence. It is usually not detectable to the unaided eye, and can emit a very subtle blue hue under UV light. …

2022年1月5日 · Every GIA diamond grading report contains a part dedicated to fluorescence. The official scale has five degrees: none, faint, medium, strong, very strong. None. If you see …

A diamond will glow under a black light because it is reacting to the UV lighting, proving the presence of fluorescence in the stone. Depending on the strength of the fluorescence, a …