If it is a diamond, have him note the nature of the stone's fluorescence, as it can prove a valuable tool for identification if ever needed. Today, with diffused sapphire being found mixed in parcels of natural sapphires and unknowingly set into jewelry, it's possible that one may be sold inadvertently. These gemstones include opal, zircon, and some of the new and increasing ly popular gems, such as iolte (water sapphire) and tanzanite.
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 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 SI1 clarity diamonds are slightly included. SI1 diamonds have some inclusions visible under 10x magnification but not easily visible to the naked eye. A diamond with this grade of clarity is an excellent choice for someone on a limited budget.