Platinum brooch with onyx and diamonds

Platinum Art Deco brooch with black onyx and diamond bow brooch, 2 in. L, 9 grams

METAL: Platinum. MEASUREMENTS: Pendant is 38mm x 21mm. GEMSTONES: Onyx, Diamonds approx. 2.20ctw. TESTED: Plat. WEIGHT: 10.3 grams.Gemstones have not been graded for color and clarity ,and tested for

Art Deco dreicer & Co platinum bow brooch set with approx. 0.66ctw in rose cut diamonds and onyx. Some onyx stones are chipped. Brooch is 53mm x 12mm. Marked: Dreicer & Co, tested Platinum. Weight - 7

Art Deco Diamond, Emerald, Black Onyx and Platinum Brooch. Set in the center with an approx. .65 carat old European cut diamond, H-I color, VS2 clarity. Accented with approx. 3.50 carat TW old Europea

A FRENCH ART DECO ONYX AND DIAMOND ARROW JABOT PIN BROOCH in platinum, designed as an arrow, set with polished onyx and rose cut diamonds, French maker's mark, French assay marks, 4.3cm, 2.2g.

CARTIER, A DIAMOND, SAPPHIRE, EMERALD, ONYX AND PEARL PANTHERE BROOCH / PENDANT in platinum, designed to depict a panther running, its body jewelled with round brilliant cut diamonds and cabochon blue

* An Art Deco Platinum, Diamond, Onyx and Emerald Bar Brooch, French, containing 133 old European and round single cut diamonds weighing approximately 2.70 carats total, 36 calibre cut onyx, and eight

An Art-Deco black onyx bow brooch ca 1930's. 14k white gold double pin back and frame. Diamonds set in platinum weighing approximately three carats total weight including center marquise cut diamond.

DIAMOND AND ONYX BAR BROOCH Containing 15 old European cut diamonds weighing approximately 1.00 carat total and eight French cut onyx. Mounted in platinum. 2 3/4 inches long. Gross weight: 4.90 dwt.

Sapphire Brooch or Bar Pin. Art Deco Cartier platinum bar pin or brooch comprised of a central onyx openwork frame with (2) sapphire cabochon accents, and (3) stacked bands of pave diamonds; flanked b

Circa 1890's Art Nouveau antique Tiffany and Co platinum brooch having 4ctw old mine cut diamonds(Clarity:VS-SI/Color:E-H) with an onyx inlay and 18K yellow gold clasp/pin. Stamped 18K on clasp, engra

Antique black opal cameo set atop onyx set in platinum and 18kt white gold with diamonds. Width 1 3/8;; total weight 7.5 grams Condition: Two tight fissures in onyx at 12 and 6, perhaps intentional

DESCRIPTION: An Art Deco Pin Brooch comprised of an 18k yellow gold foundations, inlaid with black Onyx, a platinum setting inset with Diamonds and a final Ruby accent. Stamped along the "750" Total W

Jewellery watch, brooch with pin. Pin composed of three bodies, loop, falls and watch, onyx dial, platinum and rock-cut diamonds with ca. 0.15 cts. white dial, Arabic numerals in blue and red. Measure

This adorable brooch is crafted from 18k yellow gold with a polished finish featuring a handmade turtle, featuring small assorted shape gemstones, turquoise, Mother of pearl and black onyx, all mounte

METAL: Platinum. GEMSTONES: Diamonds, Onyx. CASE: 13.9mm (excl. crown) x 29mm, marked with Cresarrow hallmark. DIAL: Silver with Arabic Numerals. MOVEMENT: 17 Jewel, 3 adjustments, Manual wind, not in

METAL: platinum, 18k gold. GEMSTONES: diamonds, onyx. MEASUREMENTS: Ring size 7.5. MARKED: tested 18 and plat. WEIGHT: 2.3 grams. Gemstones have not been graded for color and clarity ,and tested for c

French Art Deco Platinum Weight 5.82g Onyx Diamond Ring Size 7 Measurement 0.91”x0.74”

Platinum Weight 6g Onyx Diamond  Approx. 81ct Ring Size 7 Measurements 0.9”x0.9”

Vintage Platinum & Onyx Diamond Chain; diamond shaped section chain set with brilliant cut diamond 1.10 ct approx. flanked by onyx beads.  Lenght 117 cm. Weight 7.5 gr. Item condition grading: ****

(pair) Gent's estate 14kt gold cufflinks, having a textured platinum rim, enclosing circular onxy with central small diamond, marked, approx 1.25"w, 6.7 grams (inclusive of all materials) Start Price:

DAVID WEBB 18K Gold, Platinum, Onyx, and Diamond Pendant Earclipseach earclip featuring seven round brilliant-cut diamonds suspending a teardrop-shape pendant centering a cabochon pear-shape onyx meas

Beautiful Platinum Brooch with Round and Marquise Diamonds. The total weight of this piece is 9.6g. The diameter of this item is 37 mm approx. This item was previously owned, but was professionally cl

Art Deco Platinum Weight 13.5gr Coral Onyx Diamonds Approx 1ct Measurements 2.4”x0.4” Earrings