The huge diamond shown here is the Tiffany Diamond, the largest diamond currently on display in the U.S. It recently made its debut at the Smithsonian’s National Museum of Natural History in Washington. The 128.54 carat cushion-cut stone is on loan from Tiffany & Co. until Sept. 23. On top of hte stone is a gem-encrusted bird which was designed in the early 1960’s by Jean Schlumberger. It is gold and platinum with white and yellow diamonds and a ruby eye. …

Ana De Costa is another young jewelry designer making a name for herself rather quickly. She graduated from Central St. Martins in 2005 and her graduate collection, Cusp, was made ‘The Vogue List’ in late 2005 and is sold in top boutiques. April’s W magazine names her a young designer to watch highlighting this piece from her Cusp II collection, a jade pendant embraced by an 18K yellow gold dragon with a green diamond eye. De Costa may be a young designer …

Fierce, sexy and original. The Tusk Bracelet by Elizabeth Cole is a striking piece that you come across and you are instantly drawn to it. Made of gold vermeil, the gold tusk hangs from multiple chains and uses a toggle closure. Wear alone or pair with multiple understated bracelets for a trendy and funky effect. Regardless of what is in or out, the Tusk Bracelet can stand on its own and add flavor to your outfit. It measures at .75″ width. Price: …

A couple of years ago we saw the creation of diamond-covered chess and backgammon sets by Bernard Maquin. The sets have surfaced again, this time they are part of a Tzoffey’s 1818 Auction House sale, to be held during the International Colored Stone Association (ICA) Congress on May 9 in Dubai. The Magnificent Jewels auction features diamond and colored stone jewelry as well as unmounted stones such as a rough ruby, necklace-ready sets of matched emeralds and sapphires and large loose stones such as a 22.23-carat tsavorite …

Harry Winston calls this necklace Attraction for obvious reason, it’s practically large enough to have its own gravitational pull (or at least it seems that way). This dazzler has a 31.19 carat D color, internally flawless diamond which on its own is a rare and spectacular gem. But at Harry Winston they are all about gilding the lily and so this stone is set within a frame of pear-shaped and brilliant-cut diamonds and hangs from a chain of pears and brilliants that is over 72 carats. The pendant can also be worn as a …