Beautiful example of a Zircon. Great color and clarity. Large and beautiful stone. Zircon is a natural stone, not to be confused with cubic zirconia. Natural and untreated. Most gems sold online aren't jewelry grade. They're either poorly cut, have weak color or too many inclusions, giving them the designation collector grade. Collector grade gems aren't worth nearly as much as jewelry grade. The gems in this set are a cut above. We encourage you to do some searches are compare the quality of these gems to others online. The difference should be clear. These gems are natural and untreated. These were originally meant to be sold individually at the price per carat written on the paper. We're selling them all together at 75% off the listed price, which was already a wholesale price. You aren't going to find stones like this anywhere else at this price. Easy money maker for the amateur or professional jeweler. For Proxibid bidders, shipping is a flat rate of $6, no matter how many lots won. For Live Auctioneers bidders, shipping will be calculated automatically by Live Shipping and all winnings will be combined into a single package for one low rate.