Ostertag Jewelry

This 1960's vintage Boucheron piece of jewelry is a dual clip lapel brooch crafted in platinum and comprises masterfully designed, naturalistically inspired and diamond swathed scrol...

This magnificent large retro link bracelet is crafted in 18k yellow and rose gold. Made in United States circa 1940s. Total Gold weight 156gr. We do not polish antique items, but we ...

A lovely pendant with a fine gem-quality emerald in the center. The emerald weighs 0.75 carats and has a rich and bright vivid green color which is just so fine and pleasing to the e...

Rodi & Weinenberger beautiful gold filled link bracelet, with a ridged, shiny and textured design. It is stamped 'double' for gold filled, and the makers mark. The bracelet is i...

An Art Deco ruby, diamond, platinum, and gold link bracelet, comprising thirty-two old cut diamonds, and one-hundred-and-sixty calibre French cut rubies, in platinum and 18 karat yel...

Finely detailed vintage Art Deco era onyx & diamond pendant/brooch (circa 1920s to 1930s), crafted in platinum & 10 karat yellow gold. Old European & rose cut diamonds total an e...

Finely crafted in 14k yellow gold. Circa 1940s 7 1/2 x 1 inch

Interesting and distinctive estate Art Deco period platinum diamond and emerald pendant with a central design of a diamond eye framed by emeralds. The generous bale has an unusual feature of opening and closing which allows for wear on a wide ribbon or necklace. Wonderful workmanship with articulation at five points of the pendant. Prized for streamlined, elegant designs and excellent quality Art Deco jewels...

Art Deco double clip brooch set with square, marquise, straight baguette and round diamonds weighing approximately 8 carats.

Platinum Art Deco Green Emerald And Diamond 25 Carat Brooch Art Deco Geometric Emerald And Diamond Double Clip Brooch. We are selling each brooch se...

Made from a beautiful arrangement of horizontal marquise and floral shaped links, this 18k white gold bracelet graces the wrist in timeless elegance. This link bracelet features 3x3mm round heat-treated blue sapphire gemstones secured within bezel settings. Accompanying these natural gems are sparkling round diamonds nestled within prong settings totaling 1 3/4 cttw with an approximate G-H Color and SI1-SI2 Clarity. This bracelet fastens securely with a box with clasp...

An antique diamond, platinum, and yellow gold convertible brooch and pendant, comprising eighty-eight old cut and rose cut diamonds, set in platinum, and backed in 18 karat yellow go...