![]() Of the 25–30% heated to high temperatures, most will sell for up to a 40% discount below the price for the untreated and low temperature heated stones. ![]() According to the markets monitored, there is no difference in value for these categories. Approximately 70–75% of the better-quality Mogok rubies going through certification reveal either low temperature heat or no evidence of heat treatment at all. There is an ample supply of heat-treated commercial stones, but most of these originate from the Mong Hsu area, not Mogok. Mogok rubies continue to bring top prices in the wholesale trade and at auction. Market memos – May, 1995 Rubyīurma (Mogok & Mong Hsu). And when you find inconsistencies and mistakes, just remember that old saying about how you can tell the pioneers by the arrows in their backs. Consider this a brave attempt at bringing order to chaos. Palmieri of Palmieri's GAA Market Monitor, has compiled the following tables. In an attempt to bring ruby and sapphire pricing in from the cold, the author, together with Donald A. Lack of a universally-accepted system of quality analysis and the numerous non-quality factors which can affect price make it extremely difficult to come up with logical price tables for ruby and sapphire. Unfortunately, the answer seems only to spring from the lips of the seller. WHAT'S THE PRICE? That is the question on everyone's lips. Lord Alfred Tennyson, ' Columbus' Ruby & Sapphire Prices (1995) The golden guess is the morning-star to the full round of truth. Appendix B from Richard Hughes' 1997 book, Ruby & Sapphire, consisting of prices.
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