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The Sunrise Ruby greatly surpassed the previous record holder, the Graff ruby ring, which sold for US$8.6 million in November 2014. [4] [12] Its record-setting price has been attributed to the rapid increase in prices for coloured gemstones and public auctions, with figures often "rivaling the performance of the much-sought-after colored ...
Colored gold is the name given to any gold that has been treated using techniques to change its natural color. Pure gold is slightly reddish yellow in color, [ 1] but colored gold can come in a variety of different colors by alloying it with different elements. Colored golds can be classified in three groups: [ 2]
Alongside jewelry, due to the fact that the material can be massive in size, charoite can be used in the making of bookends, vases, goblets, boxes, or in small statues. Despite its relatively high hardness, it makes poor center pieces in rings and in bracelets. As it is a heat sensitive mineral, the mechanical cleaning of it should be avoided.
Impressed by their quality and color, Kunz pronounced them "the finest precious gemstones ever found in the United States". [2] Tiffany's sent Hoover a check for $3,750 (approximately $137,300 as of 2024), [ 61 ] along with a letter that described the blue pebbles as "sapphires of unusual quality".
Aim to get 90 to 95% of the spot price when selling gold bars or coins, and 70 to 80% of melt value for jewelry and other items. A karat is a unit of measure for the fineness of gold. For example ...
Samuels bought them for the same price Landini had paid, $165,000. He has used his shoes to fund children's charities, and has lent them to the Smithsonian when their slippers are cleaned, repaired, or (previously) on tour. Auction house Profiles in History announced this pair would highlight its December 15–17, 2011 Icons of Hollywood ...
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