NEW YORK — Christie’s launches its fall auction series on Wednesday, September 27 with Jewels Online, a 258-lot event with many items selling at no reserve. The catalog is available for preview now at LiveAuctioneers.

The sale features signed jewels by renowned makers including Bulgari, Cartier, David Webb, Tiffany & Co., Van Cleef & Arpels, Verdura and many more.

The top lot in the sale is a Tiffany & Co. diamond ring. It features an emerald-cut diamond of 15.28 carats, round diamonds and platinum, is signed Tiffany & Co. and comes with GIA certification. It is estimated at $800,000-$1.2 million.

Collectors looking to create their own setting will want to view these two unmounted diamonds. The pair are cushion modified brilliant-cut diamonds weighing 10.54 and 10.02 carats, respectively. They come with GIA reports and are together estimated at $500,000-$700,000.

A Graff diamond ring featuring an emerald-cut diamond of 9.75 carats, trapezoid-shaped diamonds and platinum is estimated at $250,000-$350,000. It is signed by Graff and comes with GIA certification.