18kt. Gemstone Brooch

center oval cut synthetic pink spinel approx. 18 x 13.5mm, approx. 23 round brilliant diamonds, tested 18kt. yellow gold and with Portuguese hallmarks and maker's mark, 1 x 1-1/8 in., 8.8 grams Proven

and pendant, 38 round brilliant diamonds estimated total weight 0.90ct., 14 round faceted emeralds ranging from approx. 1.5 to 3.6mm, 12 round faceted rubies ranging from approx. 2.5 to 3.3mm, stamped

carved amethyst flowers and green hardstone leaves, six single cut diamonds, stamped "750" and with maker's mark, 18kt. yellow gold, 2-5/8 x 1-1/2 in., 14.7 gramsProvenance: Private Collection, South

six round brilliant diamonds, one round cut ruby, two round faceted blue stones, stamped ?H, 18K?, yellow gold, ? x 1 in., 4.5 grams Provenance: Private Collection, No

VINTAGE 18KT YELLOW GOLD AND GEMSTONE FLORAL BROOCH ~ 1.75" IN LENGTH, WITH RUBY PETALS AND STIGMA, WITH SAPPHIRE ANTHERS AND BUDS, 53 RUBIES WITH REDDISH PINK COLOR AND MODERATE INCLUSIONS (2.12CT TW

18KT Gold, Platinum, and Multi-Gemstone Brooch, signedthe carved amethyst urn with a gold and diamond accented base, the finely carved gemstone bouquet to include aquamarine, pink tourmaline, citrine,

Measuring approx. (1.06” x 0.45”) dual tone design, platinum pin with a removable 18kt yellow gold trim, featuring florets composed of sapphires, rubies and diamonds. (diamonds approx. G-H

and pendant, carved turquoise head, nine marquise shaped opal cabochons, 26 single cut diamonds estimated total weight 0.60ct., tested 18kt. yellow gold, 2 x 1-1/2 in., 25.5 grams Provenance: A Privat

leaf design, cultured pearls and one round faceted green stone, illegible stamps on pin stem, also stamped "800" and with other hallmarks, leaves tested 18kt. yellow gold, 1-3/4 x 1-3/4 in., 10.1 gram

Two Gold & Gemstone Broochesa leaf motif circle brooch with prong set ruby detailing (stamped 18K; 1 in.); and a textured frog motif brooch with green stone eyes (tested 18KT, 3/4 in.). 7 dwt. Additi

An 18KT yellow gold Barry Kieselstein-Cord Matlese Cross brooch. There are 4 round diamonds (.80 ctw) accented with a 3 carat green tourmaline in the center with 4 pearls on each end and a crescent mo

METAL: 18K gold.GEMSTONES: sapphires. MEASUREMENTS: brooch is 57mm long x 26mm at widest point. MARKED: Tiffany & Co Italy 18Kt. WEIGHT: 10.0 grams. Gemstones have not been graded for color and cl

1st item: Ladies 18K yellow gold hedgehog pin featuring two (2) natural round rubies as eyes. The brooch is marked "18Kt S-MeT" and XRF tests 18K gold. The brooch is 3/4 x 1/2" in size and has a gross

METAL: 18k Gold. MEASUREMENTS: Earrings are 25mm x 24mm, Brooch is 46mm x 40mm. GEMSTONES: Rubies. MARKED: Tiffany & Co, 18kt, Italy. WEIGHT: 21.4 grams. Come with box. Gemstones have not been graded

Brooch pin, marked 18kt gold with 11 gemstones, size is 2 3/8" x 1" wideWeight is 9.7 grams with the stones

METAL: 18k Rose, Yellow, White Gold. MEASUREMENTS: Brooch is 48mm x 30mm. MARKED: Buccellati, Italy, 18kt, 750. WEIGHT: 23 grams. Gemstones have not been graded for color and clarity ,and tested for c

METAL: 18k Gold. MEASUREMENTS: Brooch is 45mm x 30mm. GEMSTONES: Ruby. MARKED: Italy, Tiffany & Co, 18kt. WEIGHT: 17.7 grams.Gemstones have not been graded for color and clarity ,and tested for cl

METAL: 18k Gold. MEASUREMENTS: Brooch is 40mm x 35mm. MARKED: Buccellati, Italy, 18kt. WEIGHT: 12.8 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhance

18KT AMETHYST AND GOLD BROOCH in Art Nouveau taste, sixteen round cut amethyst gemstones set in a gold brooch in a floral settingMarked with maker's mark and stamped with 18K on the interior of the br

METAL: 18k Gold. MEASUREMENTS: Brooch is 50mm x 45mm. GEMSTONES: Diamond approx. 0.46ct. MARKED: 18kt, Tiffany & Co. WEIGHT: 17.1 grams.Gemstones have not been graded for color and clarity ,and te

METAL: 18k Gold. MEASUREMENTS: Clip is 32 x 29mm. MARKED: VCA,88,18Kt,B1353R10. WEIGHT: 15.1 grams.Gemstones have not been graded for color and clarity ,and tested for clarity and color enhancement, u

Tiffany and Co 18kt gold brooch with 9 small sapphires. This vintage piece is 9.1 grams made in Italy. Comes with original box. Brooch is in excellent condition. Gemstones not tested for color or clar

Metal : 18k Gold Designer : Manfredi Gemstone : Topaz, Diamonds approx. 0.24ctw Measurements : Brooch is 40mm x 32mm Marked: : Manfredi, Italy, 18kt Weight: 15.3 grams

Metal : 18k Gold Designer : Frascarolo Gemstone : Diamonds approx. 0.12ctw, Ruby eye Measurements : Brooch is 36mm x 32mm Marked: : Frascarolo, 18kt Weight: 18.9 grams