Martin Katz Pavé Teardrop & Rose-Cut Drop Earrings set in 18K white gold; 18 round rose-cut diamonds weighing 1.95 carats and microset with 128 diamonds weighing 1.04 carats. Photo courtesy of Martin Katz. Martin Katz Australian Black Opal and Diamond...

Two bracelets from the estate of Margaret Nielsen Stiegele at Bonhams Fine Jewelry sale in New York. Photo courtesy Bonhams Bonhams is honored to present the following selection of jewelry from the Estate of Margaret Nielsen Stiegele. Mrs. Stiegele was...

A Late 19th-Early 20th Century Gem-Set Pendant Necklace, by Louis Wiese. Photo Christie's Image Ltd 2013 The pendant of openwork scrolling foliate design, with emerald cabochon and pearl accents among chased leaf motifs, suspending a single pearl drop,...

Pair of emerald ear clips, Suzanne Belperron and ring. Photo Sotheby's The ear clips set with emeralds cut en cabochon, French assay and maker's marks for Darde et Fils, the ring set with polished emerald beads en pampille, size 44, French assay marks....

"Webb" Enamel & Diamond Bracelet. photo courtesy M.S.Rau Antiques D=3.00cts app 18K & Plat (70 x 17mm) - Price: $44,000 "David Webb" Enamel & Diamond Earrings. photo courtesy M.S.Rau Antiques D=3.50cts app 18K & Plat (26 x 23mm) - Price: $30,000 "David...