18k Gold, Opal and Diamond Necklace

Edwardian 18k gold opal and diamond necklace, 17" chain with small center piece holding chain two round pendant measuring 9/16" in diameter, fifteen mine cut diamonds measuring between 0.04 to 0.06 ca

18k Gold w/ Large Opal & Diamond Necklace, marked 750, approx 15.7g total weight -

18k Yellow Gold Opal and Diamond Necklace. Pendant set with diamond in weight of about 0.03ct and opal (8x6mm). Marked. Chain length: 41cm. Pendant: 22x7mm. 5.85gr.

18K and 14K white gold Australian opal and diamond pendant necklace, pendant with one 16.65ct. oval-cut 25 x 21mm Australian opal accented with six round brilliant-cut diamonds approx: 0.12 ct tw., co

METAL: 18k Gold. GEMSTONES: Diamonds approx. 0.15ctw. Opal. MEASUREMENTS: Necklace is 18" long, pendant - 50mm long x 28mm. MARKED: Illegible designers marks, Joiers, B-193 750. WEIGHT: 28.9 gram

Fine diamond & opal pendant. Crafted of 18k white gold. Features a tear drop shaped cabochon of opal measuring 12mm x 8mm. The opal has excellent play of color with rich greens, blues, reds,and yellow

A TIFFANY & CO. 18K YELLOW GOLD, DIAMOND, OPAL, AND BAROQUE SEED PEARL NECKLACE, 1970s-1980s, design attributed Angela Cummings, an 18k yellow gold clasp set with a pavé of thirty-five round cut di

Fire Opal, Diamond, 18k Yellow Gold Necklace. Featuring one rectangular, faceted-top fire opal measuring approximately 15.9 x 10.1 mm, suspending three faceted fire opal bead tassels, wrapped in an 18

DESCRIPTION: An antique middle eastern double stranded necklace, comprised of Ethiopian opals terminating at a center 18k yellow gold pendant, garnished with approx .50 cts of Diamonds. Further design

83.10ct Yellow-Orange Fire Opal, 11.25ctw Multi-Color Tourmaline, 2.25ctw VS1-VS2 Multi-Colored Diamond & Solid 18K Yellow Gold 18" Necklace (W/$30,000 Appraisal) - This stunning necklace was finely c

Opal Bead, Diamond, 18k Yellow Gold Necklace. Featuring opal beads ranging in size from approximately 7.5 mm to 4.7 mm, completed by a diamond, 18k yellow gold bean shaped clasp, forming a graduated 1

18k yellow gold chain necklace, crafted by Asch Grossbardt, featuring slide pendant with inlay opal, mother of pearl and approx. 0.15ctw in G/VS diamonds. Measures 18" Long, Pendant 14mm x 16mm.

Crafted in platinum and 18K gold; set with a trapezoid cabochon-cut black opal, measuring approximately 12.40 x 9.30 x 4.65 mm; lozenge-shaped sapphire, weighing approximately 2.60 carats; accented by

18k yellow gold; Pendant stamped: PAF / British Assay marks; Necklace stamped: Gioconeli / 750 / Assay marks Including a rigid collar necklace (0.375" W x 15.0" L) with a detachable pendant by design

132050 14K NECKLACE, EARRINGS & 18K DIAMOND PENDANT - 3 14K yellow gold necklace, diamond and opal earrings, and 18K yellow gold diamond and opal pendant- lot of 3. To include one 14k pair of 0.2ct (0

METAL: 18K white gold GEMSTONE(S): opal approx. 9.45 carats; round brilliant-cut diamonds approx. 0.80 carats total, most I-J/SI-I1; onyx MEASUREMENTS: necklace length 18-5/8 inches, pendant 2 x 7/8 i

1.50ctw VS1-VS2/G-H Diamond, 18K White Gold and 3mm-8mm Opal Bead 7-Strand Necklace - This beautiful necklace has a 7-strand design lined with a plethora of 3mm-8mm genuine solid opal beads. The neckl

13mm Black Opal & Solid 18K White Gold 18" Necklace W/Diamond Accents - This lovely necklace was finely crafted of solid 18k white gold and is comprised of a 0.75" pendant which hangs on an 18" chain.

Vintage Large and Magnificent Oval Cabochon Opal, Round Brilliant Cut Diamond and 18 Karat Yellow Gold Necklace. Opal measures 1-1/8" L, 13/16" W. Diamonds F-G color, VS1-VS2 clarity. Stamped 750. Mea

GIA certified 5.51 G boulder opal pendant hung on an 18K yellow gold black diamond beaded necklace. Center stone set in a white + yellow metal pendant w/numerous near colorless round brilliants. Measu

14k yellow gold freeform pendant containing one freeform boulder opal, one oval cabochon doublet, four gemstones of various cuts and colors and one round brilliant cut diamond weighing approximately 0

Roberto Coin 18k Rose Gold pendant necklace with GIANT oval flame opal, blue sapphire, and diamonds. One oval flame opal measuring 36.00 x 21.00mm displaying red, orange, blue and green play of color.

18k Strawberry Gold 11.53 carat Neopolitan Opal Necklace, with incredible fire. Pictures cannot do this justice, but we tried. Cushion Cut. 3/4 carats/95 pieces: Brown and white diamonds ranging vs2-s

including amethyst and diamond ring, two onyx pendants, two diamond pearl enhancers and two pairs of earrings, both for pierced ears together with an 18k gold necklace set with an opal doublet, 24 dwt