Gem Pricing

Market in brief:April 5, 2006… The diamond market has shortages of well-made goods of 3.00+ cts. in the collection colors, but dealers report strong resistance to higher prices. Rounds lead demand, cushions and princess cuts are strong, and demand for pears and marquises is level. The popularity of well-made cushions has pushed prices close to rounds’. In colored stones, labs are intensifying investigations into the presence of beryllium in some blue sapphires. It was thought to be the result of beryllium contamination of furnaces used to treat pink and orange sapphires, but the American Gem Trade Association Gem Testing Center has reported high enough beryllium levels in some material to cast doubt on that. AGTA GTC advisor John Emmett has shown that beryllium diffusion can lighten overly dark blue sapphire. Beryllium diffusion of blue sapphire, if not disclosed, could significant
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