45-carat D-Flawless diamond could fetch $6 million at online auction

The top lot in Christie’s upcoming online sale is the Flawless Star, a 45.46 carat flawless D-color round diamond. Its estimate is $4-6 million, which the auction house says is the most valuable piece of jewelry to be offered in an online-only sale.

The Flawless Star belongs to the rare Type IIa category, which accounts for less than 2% of all diamonds. Type IIa diamonds are the purest chemically and are characterized by their exceptional transparency. These stones contain no trace of nitrogen, creating a purity of color that is only seen in the finest diamonds from the legendary mines of Golconda, Brazil and South Africa.

The Flawless Star is the headline item in a 200-lot sale in Christie’s online jewelry sale, which opens Monday and runs through April 7. More than half of the lots will be offered without a reserve price.

Other highlights of the sale include creations from renowned jewelry houses such as Buccellati, Bulgari, Cartier, Graff, Harry Winston, Oscar Heyman & Brothers, Seaman Schepps, Tiffany & Co. and Verdura.

Among the pieces featured in the sale are selections of Van Cleef & Arpels jewelry, including several interpretations of the iconic Alhambra motif, such as a “Vintage Alhambra” turquoise long necklace (estimate $10,000-$15,000) and earrings. “Magic Alhambra” diamond earrings (estimate $15,000). – $20,000).

Other significant lots from the sale include a 12.12-carat diamond pendant necklace ($550,000-$650,000), an emerald and diamond necklace ($25,000-$35,000), a bracelet in gold “Juste Un Clou” by the famous Cartier jeweler, Aldo Cipullo, ($20,000). – $30,000), a Cartier Art Deco diamond and multi-gem “Panthère” brooch ($20,000-$30,000), Hermès diamond earrings ($12,000-$18,000) and earrings “Géranium” aluminum earrings by renowned Franco-American contemporary fine jewelry artist JAR ($2,000-$3,000).

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