It is not suggested to re-cut old diamonds if they are in their original mountings. In general, the principle is that of using high frequency turbulence to clean jewelry soaking in a metal cup of water and detergent. Again, be sure to read and follow the directions with the utmost care and do not use the machine on any jewelry not specifically mentioned.
Diamond Certificate
Explanation of Cut, Color and Clarity of This Diamond
Cut Quality The ideal cut diamond is a very precise mathematical equation, where diamond proportions and angles are cut to optimize the diamond's superlative optical properties, in particular it's high refractive index and color dispersion, to create a diamond of unequaled beauty with perfect balance of brilliance and fire. In layman's terms, the diamond is cut to make it the most beautiful diamond so it retains its intrinsic value.
Color G color diamonds are next to colorless. G color may be somewhat slightly noticeable when compared to diamonds of better grades, but this grade offers excellent value. G-color diamonds are the most rare of the near-colorless diamonds. Its extremely faint tint will only be noticeable to a trained gemologist.
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.