Rose cut diamond plaque brooch and cushion

Antique cut diamond plate brooch in platinum. Brooch made of platinum set with rose cut diamonds in openwork motifs and three illusion claw centers with three antique cushion cut diamonds of approx. 0

NATURAL PEARL AND DIAMOND BROOCH, LATE 19TH CENTURY Of openwork plaque design, set with an 8.6 x 9.1 x 6.5mm natural button pearl, cushion and rose-cut diamonds and pearls, diamonds approx. 1.80cts to

An early 20th century gold ruby, split pearl and diamond bar brooch. The cushion-shape ruby, split pearl and rose-cut diamond cluster, to the twin bar with split pearl stylised crown terminals. Length

A late Victorian gold, black enamel, cushion-shape sapphire and rose-cut diamond horseshoe mourning brooch, principal sapphire estimated weight 0.25ct, reverse with personal inscription dated 27th Nov

DIAMOND AND PEARL BROOCH, EARLY 20TH CENTURY The openwork bar brooch, set with cushion-shaped and rose-cut diamonds with pearl accents, pearls untested, cushion-shaped diamonds approx. 1.70cts total,

DIAMOND STAR BROOCH, CIRCA 1890 Set with cushion-shaped and rose-cut diamonds, diamonds approx. 3.70cts total, length 4.8cm, fitted case by S.J. Rood & Co, Burlington Arcade, London

DIAMOND AND EMERALD SALAMANDER BROOCH, CIRCA 1890 Set with cushion and rose-cut diamonds, cushion-shaped emeralds and red gemstone eyes, several gemstones deficient, one leg deficient, some replaceme

A ruby and diamond fly brooch. The late Victorian cushion-shape ruby and rose-cut diamond fly, to the early 20th century bar. One diamond deficient. Length 4.4cms. Weight 2.6gms.

DEMANTOID GARNET AND DIAMOND CLOVER BROOCH, CIRCA 1880 Set throughout with cushion-shaped, old brilliant and rose-cut diamonds, the trefoil leaf accented by three old-cut demantoid garnets, principal

LACLOCHE FRÈRES: ART DECO DIAMOND-SET BROOCH, CIRCA 1925 The onyx plaque, applied with a giardinetto motif set with carnelian cabochons, old single-cut and rose-cut diamonds, the geometric border

DIAMOND STAR BROOCH, CIRCA 1890 Set throughout with cushion-shaped and rose-cut diamonds, diamonds approx. 2.30cts total, length 3.5cm

EMERALD AND DIAMOND CORONET BAR BROOCH, EARLY 20TH CENTURY Set with cushion and rose-cut diamonds, and a step-cut emerald, length 4.0cm For further information on this lot please visit Bonhams.com

A FINE ANTIQUE DIAMOND BROOCH set with an old mine cushion cut diamond of 4.00 carats in a cluster of old cut diamonds, accented by further old and rose cut diamonds to the openwork frame, the diamond

DIAMOND STAR PENDANT/BROOCH, CIRCA 1890 Of starburst design, set throughout with cushion-shaped and rose-cut diamonds, diamonds approx. 2.95cts total, brooch fitting detachable, length 3.0cm

DIAMOND HEART PENDANT/BROOCH, LATE 19TH CENTURY Set throughout with cushion, single and rose-cut diamonds, cushion and rose-cut diamonds approx. 1.05cts total, length 3.7cm For further information on

DIAMOND AND ENAMEL WING BROOCH, CIRCA 1900 Realistically modelled as a single wing, the feathers set with old cushion-shaped and rose-cut diamonds, with openwork sections creating the illusion of shad

ENAMEL AND DIAMOND BROOCH, LATE 18TH CENTURY/EARLY 19TH CENTURY The plaque depicting a funerary urn, set with a pear-shaped and rose-cut diamonds, on a blue guilloché enamel ground and within a c

NATURAL PEARL AND DIAMOND BROOCH, SECOND HALF OF THE 19TH CENTURY The openwork panel set with cushion and rose-cut diamonds, with a 9.5mm natural saltwater pearl, diamonds approx. 2.40cts total, leng

Containing 27 oval and cushion-cut sapphires weighing approximately 4.30 carats total, and 25 Old Mine-Cut, Old European-cut, and rose-cut diamonds [H-I/VS-I] weighing approximately 1.65 carats total;

AN ANTIQUE SAPPHIRE, DIAMOND AND RUBY INSECT BROOCH in yellow gold and silver, designed as a bee or a fly, the body set with two central cushion cut sapphires accented by old and rose cut diamonds, th

DIAMOND STAR BROOCH Set with cushion-shaped and rose-cut diamonds, diamonds approx. 2.50cts total, length 4.1cm For further information on this lot please visit Bonhams.com

AN ANTIQUE RUBY AND DIAMOND BOW BROOCH designed as a ribbon tied into a bow, set with old cut and rose cut diamonds and cushion cut and round cut rubies, with pendant conversion loop, no assay marks,

NATURAL PEARL AND DIAMOND BAR BROOCH, LATE 19TH CENTURY; HALF PEARL AND DIAMOND BROOCH 1st: Set with three button-shaped natural pearls and cushion and rose-cut diamonds, 2nd: The lozenge-shaped panel

AN ANTIQUE SAPPHIRE AND DIAMOND CRESCENT MOON BROOCH in yellow gold and silver, designed as a crescent moon set with cushion and round cut sapphires, accented by rose cut diamonds, no assay marks, 2.7