A diamond brooch. Of geometric design, the off-set

AN AQUAMARINE AND DIAMOND BROOCH in geometric design, set with three round cut aquamarines accented by lozenge motifs set with baguette and rose cut diamonds, suspending an old European cut diamond dr

ART DECO DIAMOND BROOCH, CIRCA 1930 Of openwork, geometric design, set with old brilliant-cut diamonds, diamonds approx. 2.70cts total, length 4.4cm

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

Of openwork geometric design, set with circular and baguette-cut diamonds, brooch measuring approximately 88mm (length), 23mm (width)

ILLARIO FOR BULGARI: DIAMOND BANGLE/TRIPLE-CLIP BROOCH, CIRCA 1935 Of geometric and scroll design, set throughout with old brilliant and single-cut diamonds with baguette-cut diamond accents, the cent

ART DECO JADE AND DIAMOND EARRINGS, BROOCH AND RING, CIRCA 1920 1st: Each earring with an openwork surmount of geometric design, set with single-cut diamonds, suspending a jadeite jade plaque carved t

10 Karat Gold, Diamond, & Sapphire Brooch The openwork plaque of oblong shape and geometric design is set with round brilliant diamonds weighing a total of 0.32 carats and round blue sapphires weighin

With three millegrained bezel-set OEC diamonds, approx. .90 ct., 1.50 cts. or .90 ct., centering graduated lines of OEC diamonds, approx. 5.0 cts. TW, in a geometric design. Ca. 1930. Stamped Wise & S

DIAMOND BROOCH, 1930S of bar design in the Art Deco style, centred on a geometric arrangement of millegrain-set circular-cut and baguette diamonds, mounted in platinum and white gold, length 57mm, sta

SAPPHIRE AND DIAMOND BRACELET Of geometric design, set with old brilliant-cut diamonds and trios of oval-shaped sapphire cabochons, diamonds approx. 1.50cts total, sapphire weight 28.2cts as stated on

AQUAMARINE AND DIAMOND BROOCH Of openwork design, set with two pear-shaped aquamarines and old brilliant-cut diamonds, length 4.2cm For further information on this lot please visit Bonhams.com

Art Deco Sterling silver and paste brooch The articulated brooch of geometric design, set throughout with round, baguette, cabochon, and square-cut paste; 1920s Sterling silver Signed with maker's mar

FABERGE, A SAPPHIRE AND DIAMOND BROOCH in circular design, set with two foliate clusters of cabochon sapphires, accented by stems set with single cut diamonds, within a border of graduated old cut dia

A VINTAGE DIAMOND BROOCH of scrolling design, set with round brilliant cut and baguette cut diamonds, suspending a trio of tassels further set with round cut and baguette cut diamonds, the diamonds al

AN ANTIQUE DIAMOND BROOCH in scrolling design, set with old cut and rose cut diamonds suspending an old European cut diamond, the diamonds all totalling 3.8 - 4.2 carats, no assay marks, 5.2cm, 12.5g.

ART DECO ROCK CRYSTAL, ENAMEL AND DIAMOND BROOCH, CIRCA 1925 Of geometric design, the openwork square rock crystal plaque accented by black enamel bands and single-cut diamonds, between pierced, simil

DIAMOND-SET BROOCH Of scrolling design, set with old brilliant and single-cut diamonds, diamonds approx. 5.00cts total, length 5.0cm

DIAMOND BROOCH Of openwork spray design set with brilliant, pear, marquise and baguette-cut diamonds, diamonds approx. 5.35cts total, length 4.3cm Footnotes: Please note this lot has VAT at the prevai

DIAMOND BROOCH Of openwork scrolling design, set with old brilliant and rose-cut diamonds, length 5.7cm

SAPPHIRE AND DIAMOND BROOCH Of openwork design, centrally-set with a cabochon sapphire, between oval and single-cut diamonds, set throughout with rose-cut diamonds, oval and single-cut diamonds approx

White Gold, Pearl, Sapphire, and Diamond Broochstarburst design brooch set to the center with a round cultured pearl (8.4mm) and with round cut sapphires weighing approximately 1.20 total carats and f

DIAMOND BROOCH Of floral bouquet design, set with cushion-shaped diamonds, diamonds approx. 1.65cts total, length 2.8cm

A 14 kt Yellow Gold & Diamond Pendant/Brooch. Pinwheel design set with thirty-one round cut diamonds of graduated size, totaling approximately 2.50 carats, in an unmarked mount. Good condition. 1 1/4"

A labradorite and diamond pendant necklaceof geometric design, set with marquise or rectangular cabochon labradorite, accented by rose-cut diamonds, in blackened silver, on sterling silver cable link