It is reported that only about 20 per cent of mined diamonds are suitable to be used as gemstones. Boulder opal is heavier than black opal or white opal because it often has the ironstone with it so it makes it a little more difficult to make into some kinds of opal jewelry such as an opal ring or opal earrings. Certainly not impossible to make into anything but for pendants it is ideal and it makes up into large opal pendants as well.
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality Diamonds cut to ideal proportions are made to reflect the most amount of light. High percentage of diamond weight is lost in the process of shaping and polishing the diamond. Such diamonds are perceived as most brilliant and fiery, thus making this the most desirable cut. Because in making ideally cut diamonds more diamond material is sacrificed for the sake of appearance, they are usually more expansive.
Color Diamonds of D color are absolutely colorless. It is the top most color grade and only 0.3% of all diamonds that make it out of the earth being D color.
Clarity Diamonds of VS2 clarity have very small inclusions grade two. Inclusions VS2 diamonds are somewhat easy for a skilled grader to locate under 10x magnification. Diamonds that are graded VS in clarity are still very impressive looking diamonds under a microscope. Of course nothing is visible at all to the human eye. Such diamonds have a great balance between good clarity and exceptional price.