 | (IDEX Online News) – Sotheby’s upcoming Magnificent Jewels sale should live up to its name. More than 350 pieces are set to go on sale at the 21 April event and are expected to achieve in excess of $50 million. Topping the highlights of the evening is a 100-carat emerald-cut diamond, expected to sell for between $19 and $25 million. The D/IF diamond is the largest “perfect” emerald-cut diamond ever offered at auction. |  The rough stone weighed over 200 carats and was mined by De Beers in southern Africa. |
 | The Monarch Blue Diamond – a platinum and rose gold fancy blue and colored diamond ring that contains an oval-shaped mixed-cut fancy blue diamond weighing over 6 carats has a pre-sale estimate of $3.5-$4.5 million. Another highlight is a platinum and 18-karat gold fancy purplish pink diamond and sapphire ring, which has a pre-sale estimate of $2.5-$3.5 million. A platinum and diamond necklace that features a suspended 52.26-carat pear-shaped D/SI1 diamond has a pre-sale estimate of between $3.8 and $4.2 million. |  |
 The Baron de Rothschild Necklace. Platinum, Emerald, Sapphire, Lapis Lazuli and Diamond Pendant-Necklace. Designed by Charles Jacqueau for Cartier, Paris, circa 1924. Estimate $1,800,000-2,200,000. |  |  Platinum, Sapphire and Diamond Brooch, Schlumberger for Tiffany & Co. Flower centering an octagonal-shaped mixed-cut sapphire weighing approximately 17.00 carats, signed Tiffany & Co. Schlumberger, circa 1960. |
 Platinum, Sapphire and Diamond Ring, Cartier, New York – Set with a cushion-cut sapphire weighing 11.90 carats, accented by old European and single-cut diamonds, circa 1915. |  Platinum, Emerald and Diamond Pendant – Suspending an emerald-cut emerald weighing 35.02 carats. |  |
