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  2. Blue Moon of Josephine - Wikipedia

    en.wikipedia.org/wiki/Blue_Moon_of_Josephine

    The diamond is the largest cushion-shaped blue stone classified as "fancy vivid" ever to appear at auction. [ 2 ] The "Blue Moon" sale, according to David Bennett, the head of Sotheby's international jewellery division, set a record for the highest-ever price per carat and it made the diamond both the most expensive jewel ever sold at auction ...

  3. Wallace Chan - Wikipedia

    en.wikipedia.org/wiki/Wallace_Chan

    [1] [2] He is the mastermind behind the creation of what has been called the world’s most expensive diamond necklace. [3] Chan is also known as an innovator. He invented the Wallace Cut, an illusionary carving technique, in 1987; [ 4 ] a jade cutting and polishing technique in 2002, [ 5 ] and The Wallace Chan Porcelain, a porcelain five times ...

  4. The 10 Most Expensive Fountain Pens in the World - AOL

    www.aol.com/10-most-expensive-fountain-pens...

    Priced at: $1.47 million. With only one of these produced each year, this Diamante fountain pen boasts a platinum barrel encrusted with over 30 carats of De Beers diamonds and an 18-karat gold nib ...

  5. Prices of chemical elements - Wikipedia

    en.wikipedia.org/wiki/Prices_of_chemical_elements

    As of 2020, the most expensive non-synthetic element by both mass and volume is rhodium. It is followed by caesium, iridium and palladium by mass and iridium, gold and platinum by volume. Carbon in the form of diamond can be more expensive than rhodium. Per-kilogram prices of some synthetic radioisotopes range to trillions of dollars.

  6. Tiffany & Co. to Sell Its Most Expensive Jewelry Design ... - AOL

    www.aol.com/tiffany-co-sell-most-expensive...

    Tiffany & Co. is planning the most expensive piece of jewelry it’s ever offered for sale. The jeweler recently acquired an 80-carat, oval shape, D color and internally flawless diamond, and will ...

  7. The Rock (diamond) - Wikipedia

    en.wikipedia.org/wiki/The_Rock_(diamond)

    The Rock is a 228.31-carat white diamond which has been graded by the Gemological Institute of America. It has G color, VS1 clarity. [1] The color of white diamonds can range from D to Z: D-color is the highest grade for white diamonds, and it is the rarest and most expensive. The Rock is G-color, which is the fourth whitest level of white ...

  8. Graff Pink - Wikipedia

    en.wikipedia.org/wiki/Graff_Pink

    The diamond, mounted in a ring, was sold by Sotheby's auctioneers in Geneva, Switzerland on 16 November 2010. Before its sale, the stone was expected to enter the list of the top ten most expensive diamonds in the world; [1] on selling for US $46 million (£29 million) it became the most expensive single jewel ever sold at auction at that time ...

  9. 10 Most Expensive Things Ever Sold at Auction: Oppenheimer ...

    www.aol.com/10-most-expensive-things-ever...

    The average American's net worth is $748,800. This figure is arguably not that bad, but it seems downright abysmal when you consider how much some ultra-rich people have paid for material items at...