Gemological laboratories consider diamond fluorescence as an identifying characteristic, not a grading factor like the Four Cs (color, clarity, cut, and carat weight). Diamond grading reports will describe a diamond’s fluorescence by its intensity level (None, Faint, Medium, Strong, and Very Strong) as it compares to the gem labs’ master stones.The most ﬂuorescent diamonds, ranging from Medium to Very Strong intensities, are selected for exquisite Luminous Diamonds jewelry that reﬂects the inner glow and greatness of a woman.
Fluorescence is the emission of photons that occurs with illumination by short wave, or ultraviolet, (UV) light. When the incoming light is absorbed, electrons in the diamond are raised to a higher energy level and vibrational excited state. As the electrons return to their original ground state, they emit light of lower energy than the incoming light source. This is what causes the appearance of a glow.Diamond fluorescence is one of the most fascinating properties of natural minerals. Owners of fluorescent diamond jewelry will get a unique opportunity to not only bask in its radiance during the day in sunshine, but also to admire its magical glow in UV light, such as nightclub blacklights.
In 99% of cases, a colorless diamond with a blue fluorescence intensity grade of Medium, Strong, or Very Strong is natural.Fluorescence originates from inclusions in the rough diamond’s crystal structure, such as nitrogen. Modifications and ratios between nitrogen and carbon in the diamond structure are called nitrogen-vacancy centers, and different ones create different kinds of glow. Certain variations in the atomic structure, such as the number of nitrogen atoms present, cause fluorescence in colors other than blue: most yellow fluorescent stones contain hydrogen (H)- and nickel (NI)-related inclusions, while red fluorescence is often caused by nitrogen-vacant centers and green fluorescence can be caused by a combination of H3 and H4 centers. All these features make every fluorescent diamond even more unique and rare.
It comes from the presence of trace elements naturally contained within a diamond during the carbon crystallization process. These trace elements—or in other words organic inclusions—make fluorescent diamonds truly unique and one of a kind.Fluorescent diamonds glow when they interact with a UV lamp or laser with large wavelengths. The best UV lamp wavelength for observing fluorescence is 365 nanometers, the standard used by gemologists from all over the world to identify and measure fluorescence intensity.
Billions of years ago, over a hundred miles beneath the Earth’s surface, the unique combination of pressure and temperature resulted in the most wonderful creation of nature: diamonds.
Some of these crystals bear a fascinating feature that makes them glow in ultraviolet (UV) light. Scientists named this characteristic fluorescence.
We call these rare stones Luminous Diamonds, or diamonds with inner light.
Like a secret concealed from one’s eye, it is this phenomenal inner light that makes fluorescent diamonds so special.
Diamonds that glow blue are a truly fascinating peculiarity. Interestingly, the blue glow also is a reliable indicator for a natural diamond.learn more
A secret hidden in plain sight, ﬂuorescence is invisible under regular light and can only be seen when the diamond is exposed to UV light – for instance, in a nightclub or in brilliant sunshine.learn more
Fluorescence varies by its intensity. Levels from Medium to Very Strong give diamond a fantastic blue glow, and make it look like a genuine shining star.learn more
Fluorescence is not just a hidden magic of a diamond, but also a rarity. According to leading gemological laboratories, fewer than 3.5% of all diamonds shine with a unique blue glow and have fluorescence intensity from Medium to Very Strong.learn more
Scientific researches state that fluorescence improves diamond’s appearance. Diamonds with yellow tint and strong fluorescence look brighter in the sunlight – thanks to a neutralizing inner blue glow.learn more