Get ready for another sizzling summer auction with Hess Fine Art, which offers a wide range of jewelry, timepieces and other various rare antiques at auction on July 15. From brands like Patek Philippe, Van Cleef & Arpels, and Tiffany & Co., there are plenty of sparkling treasures to discover. Here are 6 lots not to miss:

Looking to propose this summer? Make it official with this breathtaking, cape color 6.05ct old Euro cut diamond solitaire with VS/2 clarity ring set in a genuine Art Deco era handcrafted platinum filigree mounting. It is completely encrusted with very clean, white accent diamonds. This incredible ring comes with a GIA report to verify along with a warning NOT to drive while wearing this ring (you will undoubtedly get distracted!).

This mint condition Patek Philippe Tiffany diamond 18k white gold watch is a statement piece that can be worn by a man or woman. The large, glittering diamond dial is offset by a simple black leather band.

Also from Patek Philippe is this Aquanaut 5065 Steel Divers mens watch. The sporty Aquanaut, which celebrated its 25th anniversary last year, comes on a stainless steel case with bracelet, as well as inner and outer boxes, booklets, original receipt and envelope.

Hoyland B. Bettinger was a modernist artist who was active in the first half of the 20th century. He spent his summers on the Gaspe Peninsula in Canada where this seascape is from. It shows boats on the shoreline in front of the dramatic Pearce Rock at Mont Jolie. The watercolor comes from the estate of a prominent Atlanta educated physician who owned their own Georgia hospital, though their name is withheld by the Southern heirs.

Here is a rare Tiffany & Co sterling silver handle grip gun. In the late 19th century, as interest in the Wild West soared, Tiffany produced decorative silver guns etched with intricate designs. Only about 50 guns were made until 1911 when New York applied gun control laws, making this a true antique rarity.

From Van Cleef & Arpels comes this 18k gold and diamond necklace with about 4.5 carats of diamonds. It is a beautifully crafted piece from the estate of the late Mrs. Carl Eberback of Milwaukee, Wisconsin. Her family founded the Allis Chalmers Co. and her first marriage was to a Pabst of the Pabst Brewing family.

