A ruby and diamond brooch. Of openwork design, the oval

A ruby and diamond brooch. Of openwork design, the oval ruby curved lines, with single-cut diamond ribbon and foliate highlights. Estimated total diamond weight 0.50ct. Length 5.5cms. Weight 18.9gms.

An early 20th century 15ct gold ruby and diamond bar brooch. Of openwork design, the old-cut diamond and circular-shape ruby collet line, with shared halo surrounds and old-cut diamond collet accent t

A diamond and ruby floral brooch. Of openwork design, the rose-cut diamond and circular-shape ruby cluster, within a similarly-set floral surround and rope-twist circular border. Diameter 3cms. Total

A diamond and ruby floral brooch. Of openwork design, the textured frond, with diamond and ruby flowers, and ruby buds. Length 4.1cms. Weight 5.2gms.

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

A diamond and ruby brooch. Of stylised floral design, with oval-shape ruby and old-cut diamond highlights. Estimated total diamond weight 0.30ct. Length 4.3cms.

A FINE ANTIQUE DIAMOND BROOCH / PENDANT, 19TH CENTURY the oval body of openwork design, set throughout with old cut and rose cut diamonds, the diamonds all totalling 3.6-4.2 carats, with retractable l

A pair of 18ct gold diamond and gem-set earrings. Each of openwork design, the oval-shape sapphire, with calibre-cut ruby chevron and brilliant-cut diamond geometric surround. Estimated total diamond

Ruby Diamond 14K White Gold Floral Design BroochFeaturing one oval cabochon ruby, weighing approximately 1.00 carat, enhanced by 15 round full-cuts, weighing approximately 1.50 carats, 54 round full-c

A DIAMOND AND ENAMEL BROOCH, EARLY 20TH CENTURY in platinum and yellow gold, the oval body of openwork design, set with a central old cut diamond between panels of blue guilloche enamel, accented by f

AN ART NOUVEAU RUBY AND DIAMOND BROOCH in 18ct yellow gold, in foliate design set with a row of alternating round and oval faceted rubies and old cut diamonds, later full British hallmarks, 3.6cm, 6.5

A ruby and diamond pendant. Of floral design, the oval ruby cabochon, within a brilliant-cut diamond accent openwork surround, suspended from a 9ct gold box-link chain. Estimated total diamond weight

18k yellow gold ring; the central oval cut ruby of bright color surrounded by numerous white diamonds and openwork designs continuing down each shoulder with filigree work, stamped 750 8612 to interio

14K white gold Art Deco ruby and diamond carved brooch. 12 round and oval fine natural rubies, approx. 2cts. Approximately 1ct round and baguette diamonds mounted in foliate design. 12.8 grams. 2in le

COLLECTION OF GEM-SET JEWELLERY 1st: The butterfly brooch set with brilliant-cut diamonds, circular-cut rubies and a circular-cut emerald, 2nd: The ring of cluster design, set with an oval-cut ruby, w

OPAL BROOCH, CIRCA 1970; FANCY-LINK NECKLACE 1st: The brooch of scroll design with bark texture, set with an oval opal cabochon and accented with circular-cut rubies and brilliant-cut diamonds, 2nd: D

Designed as flower with a central cross motif. Openwork in gilt metal, central large faux pearl with four ruby rhinestones, topaz, and smoky rhinestones, completes the petals design. Oval tag on the b

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

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

A late Victorian turquoise and diamond brooch. Of openwork design, the circular turquoise cabochon, suspended from an old-cut diamond and turquoise cluster, with similarly-set foliate sides. Estimated

IMPORTANT 19th CENTURY MALTESE CROSS DIAMOND PENDANT/BROOCH, of openwork design, set with old cut diamonds totalling approx. 13 ct. The central diamond weighing 1.61 ct. L. 7 cm. 16 grams. With a fitt

EDWARDIAN CERTIFICATED NATURAL PEARL AND DIAMOND BROOCH, of openwork scrolling design. Set with diamonds totalling appro. 3.80 ct. Accentuated with 3 natural pearls to the top and suspending a natural

BELLE EPOQUE DIAMOND BROOCH, of part openwork design. Set with diamonds totalling approx. 1.25 ct. W. 3.8 cm. L. 3.7 cm. 6.8 grams.