VINTAGE PLATINUM BLACK OPAL & DIAMOND BROOCH

DESCRIPTION: A Platinum convertible Brooch/pendant centered by a Large White Opal weighing approx. 20.6cts, encompassed by a series of Round cut Diamonds the top tier diamonds weighing approx. 0.25cts

NO RESERVE - AN ANTIQUE BLACK OPAL AND DIAMOND BAR BROOCH, CIRCA 1910, Made in yellow gold and platinum, Oval cabochon black opal, weighing approximately 1.61 carats, Single cut and rose cut diamonds,

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

Vintage handmade Art Deco period Platinum and 18K Gold "Bar" brooch with black enamel, stamped "CDP Inc. France". A double row of (32) Round Brilliant Cut Diamonds, total weight 1.50ct, Clarity VS1, C

Vintage Diamond, Platinum, 14k Yellow Gold Bow Brooch. Designed as an open work bow with black velvet backing, the center featuring one old European-cut diamond weighing approximately 0.30 ct., accent

This is a charming vintage yellow gold, diamonds and black enamel 3D leopard pin brooch. It is exquisitely crafted in solid 18k yellow gold with a fine polished textured finish. The leopard is posed i

Vintage Platinum & diamond brooch, c. 1950, set with a cluster of pear-shaped and marquise-cut diamonds, H-J color, VS-SI clarity, est. 10.0 carats, 2.5"l, approx. 18 dwt., illegibly stamped 869(?) Pr

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

Vintage fancy and large floral and bow brooch. 139 high quality diamonds with a approx. weight of 9.60ct set in a hand fabricated platinum setting. Unmarked, tested for platinum. approx 1.5" X 2" with

1970's Platinum Black Opal & Diamond Ring. The ring is centrally set with a large oval cabochon cut black peacock opal. It exhibits a fine blue to green harlequin play of color. It weighs approx. 5.99

METAL: Platinum. MEASUREMENTS: Ring size - 7.75, ring top is 15.6mm wide. GEMSTONES: Black opal - 15.6mm x 12mm x 5.1mm (stone has small chips/abrasions). Diamonds approx. 0.50ctw. MARKED: with polish

Vintage Platinum Diamond Brooch, Spectrometer tested platinum, with estimated approx. 1.35 carats diamonds both prong set and bead set also three baguette cut diamonds, pin mechanism works properly, 1

A vintage platinum Victorian style pendant with an approximately 10mm x 5mm marquis center opal and two approximately 5mm round opals, complemented by old European cut diamonds weighing approximately

A Platinum, Black Opal and Diamond Pendant, containing one oval cabochon cut black opal measuring approximately 29.00 x 21.00 x 8.84 mm and 52 round brilliant cut diamonds weighing approximately 5.00

Appraisal- $10,500 Weight- 15.10 grams

Specs Style Number: RG-2722 Metal: 14k Yellow Gold & White Gold Gram Weight: 4.7 Stones: Black Opal Oval, 0.20ctw~ 4 Round Brilliant Cut Diamonds, 0.30ctw~ 6 Rubies Circa: Vintage Condition: Excellent

A PLATINUM, BLACK OPAL AND DIAMOND RING Centering a black opal oval-shaped double cabochon weighing approximately 4.50 carats encircled by round and tapered baguette diamonds weighing approximately 1.

ART DECO, BLACK OPAL AND DIAMOND BROOCH Containing one oval cabochon black opal measuring approximately 19.85 x 17.10 x 5.85 mm and 18 old mine cut diamonds weighing approximately 0.80 carat total. Mo

Antique Black Australian Opal on Matrix Diamond Brooch of 18K Gold Dimensions: 15.86 x15.35 x12.00 mm* Weight: 22.80 grams* * (estimate/approximately)

Vintage circular platinum openwork brooch with central Old European cut diamond measuring approx. 4.0mm surrounded by single cut, round brilliant cut, and Old European cut diamonds. Total approx. weig

This is a vintage platinum heart shaped pendant/brooch studded with 48 Old European cut diamonds. SI-I clarity and GH-HI color. 1 3/8 x 1 3/8". It weighs a total of 8.1g. Draft title TW estimate seems

18K Yellow Gold Platinum Weight 5gr Opal Approx 0.30 Ct Diamond Approx 0.35ct Retro Brooch Measurements 1.5”X0.7”

One 20-point center stone with channel set round and baguette diamonds. Very clean and brilliant diamonds. Unmarked. 1 3/4" x 1". 8.5 grams, inclusive. In good condition.

Vintage Platinum Diamond & Pearl Brooch. Measures approx. - 2 1/4" long. Weight - 2.3 dwt.