Explore Red And Blue, Diamond Brooch, and more!

An aquamarine, enamel and diamond brooch, circa 1900. The oval mixed-cut aquamarine within an openwork foliate surround decorated with white, red and blue guilloché enamel, accented with single-cut diamonds

An aquamarine, enamel and diamond brooch, circa The oval mixed-cut aquamarine within an openwork foliate surround decorated with white, red and blue guilloché enamel, accented with single-cut diamonds

An emerald and diamond double-clip brooch, circa 1935 Each opposing clip of scrolling and geometric design, centrally-set with two rectangular step-cut emeralds within an openwork surround set with old brilliant and baguette-cut diamonds.

Bonhams Fine Art Auctioneers & Valuers: auctioneers of art, pictures, collectables and motor cars

N AQUAMARINE, DIAMOND AND BAGUETTE DIAMOND FLORAL SPRAY BROOCH  set with a large rectangular step cut aquamarine within diamond set leaves and single stone buds in articulated mounts with baguette diamond stem, with twin prong clip brooch fitting.

N AQUAMARINE, DIAMOND AND BAGUETTE DIAMOND FLORAL SPRAY BROOCH set with a large rectangular step cut aquamarine within diamond set leaves and single stone buds in articulated mounts with baguette diamond stem, with twin prong clip brooch fitting.

Bonhams : Jewellery

A late century diamond brooch/pendant necklace The openwork cartouche of scrolling design, set throughout with cushion-shaped, old brilliant and rose-cut diamonds, mounted in silver and gold

Aquamarine and diamond brooch, circa 1935. The centre set with a step-cut aquamarine between graduated alternating lines of scissor-cut aquamarines, circular- and single-cut diamonds.  Sotheby’s.

Aquamarine and diamond brooch, circa 1935 The centre set with a step-cut aquamarine between graduated alternating lines of scissor-cut aquamarines, circular- and single-cut diamonds.

An emerald and diamond brooch

An emerald and diamond brooch Of scrolling design, set throughout with brilliant-cut diamonds, accented with similarly-cut diamond and circular-cut emerald flowerheads, diamonds approx.

Ruby and diamond fan brooch, 1950's. Marie Poutine's Jewels & Royals

RUBY AND DIAMOND BROOCH, Of geometric design set with calibré-cut rubies, circular- and single-cut diamonds and French assay marks, two diamonds deficient.

A RUBY AND DIAMOND BROOCH, MOUNTED BY CARTIER   Designed as a stylised starfish, centering upon an oval-shaped cabochon star ruby, within a trapeze-shaped diamond surround, each pierced undulating arm set with single and brilliant-cut diamonds, to the baguette-cut diamond accents, mounted in platinum, circa 1965, 7.0 cm long, with Cartier maker's mark, in a Cartier red leather case

A RUBY AND DIAMOND BROOCH, MOUNTED BY CARTIER Designed as a stylised starfish, centering upon an oval-shaped cabochon star ruby, within a trapeze-shaped diamond surround, each pierced undulating arm set with single and brilliant-cut diamonds, to the baguette-cut diamond accents, mounted in platinum, circa 1965, 7.0 cm long, with Cartier maker's mark, in a Cartier red leather case

Platinum and Diamond Ring, set with an old European-cut diamond weighing approx. 0.25 cts., further set with diamond melee, and calibre-cut red stones, millegrain accents, 14kt gold shank,

Platinum and Diamond Ring

A SAPPHIRE AND DIAMOND BROOCH   Designed as a single and circular-cut diamond stylized feather, centering upon an oval carved sapphire, with calibré-cut sapphire detail, mounted in platinum, with French assay mark

A SAPPHIRE AND DIAMOND BROOCH Designed as a single and circular-cut diamond stylized feather, centering upon an oval carved sapphire, with calibré-cut sapphire detail, mounted in platinum, with French assay mark

SAPPHIRE AND DIAMOND BROOCH    The central cushion-shaped sapphire between circular-cut diamonds to a tapering bar set with single-cut diamonds, length approximately 78mm.

SAPPHIRE AND DIAMOND BROOCH The central cushion-shaped sapphire between circular-cut diamonds to a tapering bar set with single-cut diamonds, length approximately

Estate Jewelry:Brooches - Pins, Art Deco Aquamarine, Diamond, Platinum Brooch. ...

Art Deco Aquamarine, Diamond, Platinum Brooch The brooch, designed as an elaborate bow, features a square-cut - Available at 2009 December Signature Jewelry.

Cartier aquamarine brooch Pt950

Aquamarine Brooch by Cartier.

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