in Beijing encountered two natural diamonds that showed extraordinarily strong blue phosphorescence and uncommon fluorescence colors under the DiamondView. The diamonds weighed 0.18 and 0.30 ct and ...

The demonstration of a solid-state yellow laser based on diamond could ... application of natural diamond. Furthermore, the grade of diamond is not mentioned — using type IIa diamond would ...

Lucara is a leading independent producer of large exceptional quality Type IIa diamonds from its 100% owned Karowe Diamond Mine in Botswana. The Karowe Mine has been in production since 2012 and ...

lab-grown diamonds. Crafted as Type IIa diamonds, the purest form of diamonds, ALTR’s creations match the brilliance of mined diamonds without the environmental impact. Their pieces are made ...

The “historic” discovery of this type IIa diamond, a category that includes ... no such materials are found in natural pink diamonds. Instead, the color is thought to be due to “plastic ...