Type IIa diamonds are among the rarest and most chemically pure types that naturally occur. They contain no measurable nitrogen or boron impurities, setting these gems apart from the less pure Type I diamonds. Bid Global International Auctioneers LLC will soon present a dedicated auction of Type IIa diamonds. Each available diamond is GIA-graded with complete reports from the Institute and laser inscriptions. Among the key lots is a 45.76-carat diamond pair. These square emerald-cut stones both have I color and VS1 clarity. Their combined appraised value is over USD 4 million. A colorless (D color) 20.03-carat heart-cut diamond is also available.
Those seeking colored diamonds will find several notable examples in this auction. A natural fancy pink diamond will cross the block. This 2.09-carat gem features the classic pear cut. This teardrop-shaped cut combines the Marquise and oval cuts to create tapering facets and plenty of sparkle. Bidders can also consider a natural fancy brown-yellow diamond weighing 16.40 carats. It has VS1 clarity with an emerald cut. This gemstone’s step-cut facets yield a layered, geometric appearance. Visit Bidsquare to find the complete auction catalog and browse other online auctions.