A gem dealer was strolling the aisles at the Tucson Gem and Mineral Show when he noticed a blue-violet stone the size and shape of a potato. He looked it over, then, as calmly as possible, asked the vendor, "You want $15 for this?" The seller, realizing the rock wasn’t as pretty as others in the bin, lowered the price to $10. The stone has since been certified as a 1,905-carat natural star sapphire, about 800 carats larger than the largest stone of its kind. It was appraised at $2.28 million.
It took a lover of stones to recognize the
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