NO RESERVE - A DIAMOND BOW BROOCH Single-cut diamonds

Platinum and Diamond Broochthe bow-form brooch comprising full- and single-cut diamonds weighing approx. 1.50 tcw. with open-work millegrain decoration; 7.90 dwts; lg. 3 in.Provenance: The Collection

DIAMOND BOW BROOCH, 1ST HALF OF THE 20TH CENTURY The pierced ribbon bow with scalloped edges, set throughout with old brilliant and single-cut diamonds, accented by a central cushion-shaped diamond, w

METAL: 18K yellow gold GEMSTONE(S): round faceted rubies approx. approx. 0.64 carat total; round brilliant and single cut diamonds approx. 1.14 carats total, most H-I/SI1-SI2; freeform carved rubies M

YELLOW GOLD, SAPPHIRE AND DIAMOND BOW BROOCH Containing one marquise cut sapphire, 22 round mixed cut sapphires and eight single cut diamonds. 2 1/2 inches x 1 inch. Stamp: 750 (Italian hallmark). Gro

Pendant. Art Deco style? 14kt white gold openwork oval brooch accented throughout with (21) single cut diamonds, and further displaying a diamond inlaid bow. The bow is comprised of a a single pear fa

Single cut diamonds 0.20 cts.TW. 14k. 10.7 dwts.

This is an antique 14K white gold filigree bow brooch dating to the early 20th Century. The Art Deco brooch features an Old European cut diamond surrounded by single cut diamonds. The diamonds are SI

A late 19th century silver and gold ruby and diamond bow brooch. Designed as a central circular-shape ruby, to the single-cut diamond scrolling ribbon sides, with circular-shape ruby terminals. Estima

RETRO, BICOLOR GOLD BOW BROOCH Containing three single cut diamonds and three square step cut sapphires. 2 1/4 x 1 3/8 inches.Stamp: 14K (maker's mark).Gross weight: 10.40 dwt. Property from the Promi

DESCRIPTION: Tested 90% platinum Art Deco bow brooch set with forty-nine round full and single cut diamonds of .02 to .06 carat each. Clarity SI to I1, color I-J. Approximately 1.50 ctw. Also set with

57 full cut old European cut diamonds, 22 single cut old European diamonds, graduating in size 2.0 - 1.2mm, tested platinum, straight bar pin with "J" clasp, 2-1/4 x 5/8 in, 10.1 grams Provenance: Pro

A VINTAGE AQUAMARINE AND DIAMOND BOW BROOCH, CIRCA 1950 in platinum and 18ct white gold, set with two tapered fancy cut aquamarines, accented by rose cut, single cut and round brilliant cut diamonds,

DIAMOND AND RUBY BOW BROOCH of stylized geometric design set throughout with single-cut and baguette diamonds accented with circular rubies in a red box bearing probably apocryphal ‘Cartier’ stamp

NO RESERVE - A PERIDOT AND DIAMOND BAR BROOCH, EARLY 20TH CENTURY, Made in 18 carat white gold and platinum, Octagonal step cut peridot, weighing approximately 3.71 carats, Single cut diamonds, Stampe

late Georgian/early Victorian brooch, one baroque pearl approx. 14 x 9.5mm added later, 99 old mine, mixed, rose and single cut diamonds estimated total weight 2.25 carats, near colorless to slight t

PLATINUM AND DIAMOND CLIP BROOCH Approx. 13.45 total dwt. (No Reserve*) Form suggesting a trumpeting angel. Set with ten brilliant-cut diamonds and 91 single-cut diamonds, approx. 4.00 carats total we

18KT WHITE AND YELLOW GOLD AND DIAMOND HUMMINGBIRD BROOCH Approx. 7.81 total dwt. (No Reserve*) Hummingbird with a pine cone and branch. Set with 36 single-cut diamonds, approx. 0.33 carats total weig

Brooch. Vintage/retro 14kt rose gold bow form brooch with central panel of channel set rubies flanked by rows of (3) single cut diamonds. Total of (6) single cut diamonds measuring approx. 1.5mm each.

NO RESERVE - AN ANTIQUE PINK TOURMALINE AND DIAMOND BROOCH, Oval cut and circular cut pink tourmalines, Single cut and rose cut diamonds, No assay marks, Diameter 46mm, Weight 4.3 grams

Platinum & Diamond Art Deco Bow Brooch Designed as a bow centering baguette diamonds weighing a total of 0.19 carats accented by old European cut diamonds weighing a total of 0.74 carats and single cu

A diamond violin brooch. The violin, with brilliant and single-cut diamond neck and pegs, to the bow bar. Estimated total diamond weight 0.15ct. Length 4.4cms. Overall condition good. Minor surface sc

Platinum circle brooch with bow, set throughout with single and old mine-cut diamonds totalilng approximately 2.00 cts., graded G-H color and SI clarity, 7.5 gms gross, est: $600/800

View a video of this lot: Click HereSummary of Key Characteristics • Metal: 14K yellow and rose gold • Gemstone(s): single and round brilliant cut di

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,