A Crystal Opal and Diamond Pendant Germany, circa 1890

A LATE 19TH CENTURY DIAMOND PENDANT/BROOCH, CIRCA 1890 The eight-rayed star set throughout with old brilliant and single-cut diamonds, mounted in silver and gold, diamonds approximately 4.50cts total,

AN AQUAMARINE AND DIAMOND BROOCH/PENDANT, CIRCA 1890 The openwork scrolling cartouche with foliate detailing and set throughout with rose-cut diamonds, with an oval-cut aquamarine to the centre, suspe

A LATE 19TH CENTURY DIAMOND STAR PENDANT/BROOCH, CIRCA 1890 The six-rayed star set throughout with old brilliant-cut diamonds, each ray spaced by a trio of similarly-cut diamonds within a pinched coll

NO RESERVE - A BLACK OPAL AND DIAMOND PENDANT NECKLACE, CIRCA 1910, Made in 15 carat yellow gold, platinum and 18 carat yellow gold, the chain later added, Oval cabochon black opal, weighing approxima

Art Deco rock crystal, diamond, and 14k gold pendant necklace, circa 1930, the oval rock crystal pendant centering an Old European cut diamond, and framed in a filigree setting, the bail having a matc

ATTRIBUTED TO ARCHIBALD KNOX FOR LIBERTY & CO: ART NOUVEAU PEARL, DIAMOND AND OPAL MOSAIC PENDANT, CIRCA 1900 The pendant inlaid with opal, onyx and a pink gemstone accent, depicting a sailing boat at

14K Yellow Gold, Diamond, and Black Opal Pendant. Circa 1970, set with three round diamonds, totaling approximately .25 carats. [30B549](CDB10320)(PR) Measurements: 1 1/8" diameter. Condition: Good.

18K 2.5 CT OPAL & DIAMOND PENDANT ON 18K CHAIN: 18K yellow gold pendant (tested) contains one cabochon cut semi-crystal opal. Orange bodycolor with blue/green pinfire play-of-color. WEIGHT: 3.40 Ct Ap

A bronze and crystal four arm chandelier having cascading tear drop pendants circa 1890. Ht: 60" Dia: 25"

weight: 2.46 gram, diamond: SI1 natural .04ctw, GEMSTONE: natural Australian crystal opal .64ct 4.5mm x 4mm, size: 5 metal: 18k yellow gold

An unusual vintage ear-clips made in Germany, circa 1960s. Crafted for Spritzer & Furhmann, with an undulated shape of twisted wires made of 18 karats yellow gold and suited, with omega backs. Mounted

AN ANTIQUE DIAMOND & CRYSTAL PENDANT/NECKLACE IN 14KT. WHITE-GOLD. THIS ANTIQUE PIECE IS, CIRCA 1870, & IS IN EXCELLENT CONDITION. THE OLD MINE CUT DIAMOND IS OVER 0.05CT. & THE CRYSTAL HAS CUT FACETS

OPAL CRESCENT BROOCH/PENDANT, CIRCA 1890 Set with graduated opal cabochons with rose-cut diamond accents, length 3.2cm For further information on this lot please visit Bonhams.com

18K Opal Diamond Necklace, 8.1g. Marked 750. Receipt Marked: "Curtis Jewelers Opal Guarantee... Opal type: Crystal, Carat Weight 20.68ct." Pendant Approximately 2.0L x 0.875W in. Opal Approximately 1.

Vintage ruby crystal chocker Riviere design. 1950/60 Circa. One row of shiny ruby diamond-cut and four graduated pendants at the center with the same rubies glass. Sewing hook clasp, usually Scemama f

GEORGES FOUQUET: CITRINE AND DIAMOND PENDANT, CIRCA 1920 The large circular fancy-cut citrine, mounted within three dart-shaped claws decorated with rose-cut diamonds, suspended from a rose-cut diamon

Play of color.GIA Certified 10.91ct. Natural Non treated Opal.Report: 5172413056Oval cut: 15.85 X 15.08 X 9.67mmthreads of greens, orange and some yellows.Phenomenon: "A Play of Colors"1.10ct. Side na

Fine Australian Black Opal & Diamond Pendant in 14K Yellow Gold includes 14K Gold Chain 11.25ctw * (estimate/approximately)

Ref:230711019 Gold Content:14K Gold Main Gemstone:Opal Number of stones:1 Shape:Pear Carat Weight:13.4ct Color:Black Treatment:Natural Cut Grade:G Adjacent Gemstone 2 : Diamond Shape:Round

Art Deco Platinum Black Opal & Diamond Pendant. It features a drop design centrally set with a massive pear shaped black opal. It exhibits a harlequin peacock play-of-color and measures 31.00mm x 21.0

Ref:230508296 Gold Content:14K Gold Main Gemstone:Opal Number of stones:1 Shape:Pear Carat Weight:13.4ct Color:Black Treatment:Natural Cut Grade:G Adjacent Gemstone 2 : Diamond Shape:Round

Gold Content:18K Gold Main Gemstone(s):Opal Number of stones:1 Gemstone Shape:Cabochon Carat Weight:20ct Side Stone(s) : Diamond Clarity Grade:SI1 Gemstone Color:H Side Stone(s) : Sapphire<

Ref:926058 Gold Content:18K White Gold For people:Women Weight of Item:6.86 grams Main Gemstone: Opal Number of stones: 1 Shape: Oval Carat Weight: 22.5 ct Color: Black Cut Grade:G Adjacen

Ref:230516267 Gold Content:14K Gold Main Gemstone:Opal Number of stones:1 Shape:Pear Carat Weight:20.3ct Color:White Treatment:Natural Cut Grade:G Adjacent Gemstone 2 : Diamond Shape:Round