Be wary of sellers claiming to be selling 'Certified Diamonds' where the certificate states a value. Actually, in jewelry only the Corallium rubrum and Corallium japonicum are used. After being extracted from the sea, corals are processed until they become suitable for rings, necklaces and other jewelry.
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality Diamonds of premium cut proportions are almost as good as ideal. Most people will not be able to distinguish an idea cut from premium. Less diamond material is lost in the process of cutting thus making the diamonds less expansive then ideally cut ones. In short premium cut reflects almost as much light as the ideal-cut, but for a lower price.
Color Diamonds of E color are virtually colorless. Only less than 0.7% of natural diamonds have this color. Diamonds of this color grade will appear colorless even when observed face down against a flat white background.
Clarity SI2 clarity diamonds are slightly included grade two. SI2 inclusions in diamonds are easily visible under 10x magnification. These inclusions may or may not be discernable to the naked eye depending on their location on the diamond, but these diamonds still presents an excellent value.