With offices in New York City, Israel, and Rochester, New York, RDI Diamonds Inc. offers jewelers a full range of quality stones, with many certified by major organizations such as the Gemological Institute of America. RDI Diamonds carries thousands of stones in cuts such as round brilliant, emerald, and radiant. Beyond carats, color, and clarity, the cut of the diamond is a key determinant in the stone’s value. Traditional round brilliants have a 58-facet cut that maximizes brilliance and sparkle, and they make up approximately three-quarters of the diamonds on the market today.
Other popular designs include the radiant cut, which contains 70 facets and has a rectangular or square shape similar to an emerald’s. The intense color refraction of this cut requires stones of exceptional depth; depth percentages of 70 percent or more are common. The marquise cut is a classic, elongated cut originally commissioned by Louis XIV of France, who requested that it match the beauty of his mistress, the Marquise de Pompadour. This exquisite cut stands well on its own and is often matched with smaller settings in jewelry as well.