A Platinum Topped Yellow Gold, Ceylon Sapphire and

Circa 1915, platinum-topped yellow gold, set with two pear-shaped sapphires totaling approximately 4.00cts., and topped with four Old European-cut diamonds totaling approximately 0.30ct. and graded H-

Seed Pearl, Diamond, Sapphire, Platinum-Topped, 14k Yellow Gold Golf Brooch. Designed as a golf putter, the blade accented by single-cut diamonds and a single seed pearl as the golf ball, the handle a

Art Nouveau Sapphire, Diamond, Platinum-Topped, 14k Yellow Gold Circle Brooch. Featuring six round-cut sapphires weighing a total of approximately 1.15 cttw., accented by eighteen round-cut diamonds w

(Lot of 3) Sapphire, seed pearl, 14k yellow gold and platinum pins Including 1) round-cut sapphire, seed pearl, platinum-topped and 14k yellow gold oval pin; 1) round-cut sapphire, seed pearl and 14k

Platinum topped 14k yellow gold Edwardian style cluster ring with a cushion set dark blue sapphire center (8.5 x 6.5mm), surrounded by 12 prong set early cut rounds diamonds (2.88mm each) with an expa

(Lot of 3) Ruby, sapphire, diamond and platinum, yellow gold horse shoe stickpins Including (1) rose-cut diamond, platinum-topped 18k yellow gold horseshoe stickpin; 1) ruby, old mine-cut diamond and

(Lot of 3) Diamond, synthetic sapphire, gold and platinum rings Including 1) diamond, synthetic sapphire, platinum-topped and 18k yellow gold ring, size 5.25; 1) diamond, synthetic sapphire and 18k wh

A FINE ART DECO CEYLON NO HEAT SAPPHIRE, DIAMOND AND PEARL NECKLACE, EARLY 20TH CENTURY in platinum and yellow gold, set throughout with nine oval cut blue sapphires all totalling approximately 16.90

The flattened curb links center a pale orange sapphire, approx. 7.99 cts. by formula. In OMC and OEC diamond platinum-topped link, diamonds approx. .88 ct. Ca. 1930. 14k. Stamped Seaman Schepps. 7 3/4

14K yellow gold platinum topped filigree brooch featuring Old European and Old Mine cut diamonds bead set into filigree with channel set dark blue French cut sapphire channel set down the center, 6 in

Yellow gold, pierced and millegrained platinum topped bar brooch with post set seed pearls and bezel set round faceted sapphires; Yellow gold ring with carnelian, string seed pearl frame; Seed pearl n

A GROUP OF PLATINUM-TOPPED GOLD, BI-COLOR GOLD, SAPPHIRE AND DIAMOND BROOCHES • Platinum, 14k white gold, 18k yellow gold • 5 old European-cut, 1 old-mine cut and numerous rose-cut diamond

PLATINUM & 18K GOLD CEYLON STAR SAPPHIRE DIAMOND & RUBY BROOCH: An important 18K yellow gold Russian brooch set with a large star sapphire cabochon surrounded by diamonds and knife-set rubies in an en

Art Deco Platinum and 14K yellow gold bar pin featuring 10 round sapphires weighing approx. 2.50ctw, possibly Ceylon, alternating with 18 rose cut diamonds weighing approx. 0.20ctw, lock safety catch,

Ceylon Sapphire, Sapphire, Diamond, Platinum, Gold Ring Stones: Cushion-shaped pink sapphire weighing 4.90 carats; cushion-shaped yellow and blue sapphires we

Peter Rath 'Court Jeweler' Munich, Germany stunning platinum with rose gold two tone pendant necklace. Has a draping design featuring garnet, blue sapphire (Ceylon or possibly Burmese) and yellow sapp

* An Edwardian Platinum Topped Yellow Gold, Pearl and Diamond Pendant/Brooch, containing one pearl (origin not tested) measuring approximately 8.85 mm in diameter, seven old European cut diamonds weig

A Platinum Topped Yellow Gold, Jadeite Jade and Diamond Ring, containing one oval cabochon cut green jadeite jade measuring approximately 22.34 x 10.75 x 5.84 mm and 16 old mine and round brilliant cu

A Platinum Topped Yellow Gold, Emerald and Diamond Ring, containing one square step cut emerald measuring approximately 5.28 x 5.23 mm, two old European cut diamonds weighing approximately 1.40 carats

A Platinum, Yellow Gold, Sapphire and Diamond Ring, containing one oval mixed cut sapphire measuring approximately 8.90 x 6.89 x 3.65 mm and 20 tapered baguette cut diamonds weighing approximately 1.0

A Pair of Platinum Topped Yellow Gold and Diamond Dangle Earrings, containing two old mine cut diamonds weighing approximately 0.45 carat total, one old mine and one round brilliant cut diamond weighi

A Platinum Topped Yellow Gold, Pearl, Diamond and Onyx Ring, containing a pearl measuring approximately 6.80 mm (origin of pearl not tested), two round brilliant cut diamonds, 16 round single cut diam

centered with one rectangular cushion cut blue sapphire weighing .73 carat and the floral motif mount with bead and bezel set old mine cut diamonds weighing approximately .83 total carat (H-J color, S

An Edwardian Platinum Topped Yellow Gold, Diamond and Pearl Pendant and Necklace, consisting of a necklace containing one old European cut diamond measuring approximately 3.20 x 3.21 x 1.77 mm, numero