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2. Diamond (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Diamond_(gemstone)

   Of the 35% that did fluoresce, 97% had blue fluorescence of which 38% had faint blue fluorescence and 62% had fluorescence that ranged from medium to very strong blue. Other colors diamonds can fluoresce are green , yellow , and red , but are very rare and are sometimes a combination of the colors such as blue-green or orange .

3. Material properties of diamond - Wikipedia

   en.wikipedia.org/wiki/Material_properties_of_diamond

   Some natural type IIb diamonds phosphoresce blue after exposure to short-wave ultraviolet. In natural diamonds, fluorescence under X-rays is generally bluish-white, yellowish or greenish. Some diamonds, particularly Canadian diamonds, show no fluorescence. [19] [22] The origin of the luminescence colors is often unclear and not unique.

4. Nitrogen-vacancy center - Wikipedia

   en.wikipedia.org/wiki/Nitrogen-vacancy_center

   Simplified atomic structure of the NV center. The nitrogen-vacancy center (N-V center or NV center) is one of numerous photoluminescent point defects in diamond.Its most explored and useful properties include its spin-dependent photoluminescence (which enables measurement of the electronic spin state using optically detected magnetic resonance), and its relatively long (millisecond) spin ...

5. 11 Engagement Ring Trends for 2024 That Will Make You ... - AOL

   www.aol.com/11-engagement-ring-trends-2024...

   “Lab diamonds are only accelerating simple engagement ring designs. Natural diamond center stones have a way of pushing designers to enhance the overall look of the ring by adding more diamonds ...

6. Aurora Butterfly of Peace - Wikipedia

   en.wikipedia.org/wiki/Aurora_Butterfly_of_Peace

   The Aurora Butterfly of Peace diamond collection is an artwork consisting of 240 natural, fancy colored diamonds weighing a combined total of 167 carats (33.4 g). This butterfly -shaped diamond mosaic was created over a period of twelve years by Alan Bronstein and Harry Rodman.

7. Spontaneous parametric down-conversion - Wikipedia

   en.wikipedia.org/wiki/Spontaneous_parametric...

   Schematic of SPDC process. Note that conservation laws are with respect to energy and momentum inside the crystal.. Spontaneous parametric down-conversion (also known as SPDC, parametric fluorescence or parametric scattering) is a nonlinear instant optical process that converts one photon of higher energy (namely, a pump photon) into a pair of photons (namely, a signal photon, and an idler ...