This loose gemstone has undergone no detectable treatment of any kind as determined by a professional gemologist using standard gemological testing or has a dealer guarantee that the gemstone has undergone no treatment.

The symmetry grade refers to alignment of the facets, poorly shaped facets or the presence of extra facets. Gemstones with at least a Very Good symmetry and Make grade will display superior brilliance. This gemstone has Very Good Symmetry as graded by a professional gemologist and any symmetry flaws are extremely difficult to detect under 10x magnification. It has been cut with little regard to the weight loss of the gemstone rough, and primarily to optimize the gemstones optical properties to its fullest potential. It has been crafted with the highest degree of craftsmanship, with very good proportions, symmetry and polish. This gemstone has a Very Good Make as graded by a professional gemologist. Other shapes are usually referred to as Fancy.

Traditional shapes are Oval, Pear, Marquise, Trillion, Cushion, Emerald, Round, Radiant, Princess. Shape refers to the geometric shape of the gemstone. The higher price per carat reflects a higher quality gem. The price per carat is the best way to compare very similar gemstones in terms of quality. In gemstones and diamonds, the Price Per Carat refers to the dollar cost per unit of carats, the traditional unit of measurement for gemstones.

Lab grown padparadscha sapphire