Graff Pink Diamond Record: The Most Expensive Gem Ever Sold At Auction Some of the most valuable gems in the world are colored diamonds that have been graded (D) and flawless. One such diamond was discovered in the 1950s, when American jeweler Harry Winston purchased a rare pink diamond from an unknown collector. The diamond was 24.78 carats in size, and was described by Winston as “one of the greatest diamonds ever discovered.”
An early Victorian pink topaz and diamond brooch/pendant, circa 1840. The foiled closed back settings set with oval and mixed cut pink topazes, in gold closed collets, within a scrolled foliate old mine cut diamond set pediment, with a similar set lyre shaped drop beneath, mounted in gold backed silver.
Pink topaz and diamond brooch, circa 1910. Edwardian diamond-set open work oval brooch, set with an oval-cut pink topaz to centre weighing approximately 9.00cts within a diamond-set bow and garland surmount. Millegrain setting, mounted in platinum.