One final way to ensure you're working with a reputable diamond seller is to examine that particular retailer's history. You should also check if she prefers conservative or flashy jewelry. Are they small and conservative like studs or are the big and detailed like chandelier or hoop earrings.
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 K color diamonds have faint yellow color. Mounted in yellow gold, they look dazzling. Look for diamonds in this color range with medium to very strong fluorescence to minimize yellowish color effects. Choosing K color diamond allows to go for a bigger size and more extravagant look.
Clarity Typically VS2 diamonds have minuscule inclusions. Inclusions in VS2 clarity grade should be mainly light-colored and completely invisible to the naked eye. Very small dark inclusions are allowable under the girdle when view under 10x magnification. Diamonds in VS2 category are great choice for people looking to balance high clarity and affordable price.