ONYX AND DIAMOND PENDANT / BROOCH, EARLY 20TH CENTURY

A BELLE EPOQUE DIAMOND PENDANT / BROOCH, EARLY 20TH CENTURY in yellow gold and platinum, the foliate body suspending swags, jewelled throughout with old European, single and rose cut diamonds, the dia

AN ANTIQUE ONYX AND DIAMOND PENDANT, EARLY 20TH CENTURY in platinum, set with a fancy shaped onyx with scalloped decoration and an applied foliate motif set with rose cut diamonds, suspending a diamon

VAN CLEEF & ARPELS, AN EXQUISITE ART DECO ONYX AND DIAMOND FOB WATCH PENDANT NECKLACE, EARLY 20TH CENTURY in platinum, the hexagonal face with stylised Arabic numerals, within a border of rose cut

ART DECO DIAMOND, ONYX AND ENAMEL PENDANT, EARLY 20TH CENTURY the pendant of tapering design, set with rose cut diamonds accented by polished pieces of black onyx and bands of black enamel, suspending

AN ANTIQUE AMERICAN RUBY, SAPPHIRE AND DIAMOND BIRD BROOCH / PENDANT, TIFFANY & CO EARLY 20TH CENTURY designed as a flying bird set with round and step cut rubies, French cut sapphires and rose cut di

AN EARLY 20TH CENTURY PEARL AND DIAMOND PENDANT / BROOCH a pearl within an openwork diamond and seed pearl-set clover leaf frame. Estimated total diamond weight 0.90ct, 3.2cm diameter, 8.8 grams One

AN EARLY 20TH CENTURY OPAL AND DIAMOND BROOCH / PENDANT a cluster of heart-cut opals within an openwork frame of further opals and eight-cut diamonds. Estimated total diamond weight 0.40ct, 4cm by 2.5

18K Yellow Gold Brooch/Pendant, early 20th c., with a central 1.25 ct. round diamond, atop five in-and-out graduated diamond mounted loops, H.- 1/2 in., Dia.- 1 in., Diamond Accent Wt. - App.- .6 cts.

art deco brooch early 20th century weight 4.4dwt 14k gold diamond and onyx marked 14k

MARCUS & CO: SAPPHIRE AND DIAMOND BROOCH/PENDANT, EARLY 20TH CENTURY The central oval-cut sapphire within an openwork quatrefoil border of floral and foliate motifs, millegrain-set throughout with old

A yellow metal, onyx and diamond ring, size O, 3 grams, together with a yellow metal band ring, size M 1/2, a yellow metal mounted double-sided shell cameo pendant, an early to mid 20th century ladies

An engraved gold hatching snake with OEC diamond eyes, approx. .01 ct. TW, and round cut sapphire accent, on chain; A green enameled snake and textured gold skull brooch. 14k. Early 20th c. 1 1/2" x 1

AN EARLY 20TH CENTURY NATURAL SALTWATER PEARL AND DIAMOND BROOCH, three natural button pearls within an old-cut diamond-set foliate frame and suspending a pearl and diamond pendant drop. Estimated tot

An early 20th century split pearl and diamond pendant. Designed as an old-cut diamond and split pearl cluster, with split pearl foliate surround and surmount. May be worn as a brooch. Estimated diamon

A silver gilt, diamond, amethyst, and pearl pendant in the Edwardian style, with silver gilt suspension loop, together with a 15ct yellow gold late 19th / early 20th century bar brooch (3.3 grams). (

Measures approx. 2" long. Oval in shape with 4 round brilliant diamonds. Total approx. weight .20cts. Pin dates to the early 20th century. Can be worn as a pendant as well. Total weight: 25 grams. Shi

A jadeite and diamond pendant in a gold toned setting from the early 20th century. The green jadeite is carved into a gourd form. It is topped with small diamonds set in flowers and leaf forms. Dimens

A jadeite and diamond pendant in a gold toned setting from the early 20th century. The green jadeite is carved into a gourd form. It is topped with small diamonds set in flowers and leaf forms, each m

A DIAMOND BROOCH, EARLY 20TH CENTURY in 14ct yellow gold and platinum, the scrolling body set with a fan of rose cut diamonds, accented by further rose cut diamonds and an articulated diamond drop, st

Edwardian diamond & emerald pendant, early 20th c., hanging pendant set in platinum with yellow gold accents, 20" chain, pendant approx. 2.5"h, 1"w, 9.9 g Provenance: Property from the Collection of a

AN ART DECO RUBY, EMERALD, SAPPHIRE AND DIAMOND PIN BROOCH, EARLY 20TH CENTURY, POSSIBLY BY CARTIER in 18ct white gold, the pin terminated by concentric circular motifs articulated to rotate within on

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

14K white gold filigree and diamond pendant necklace. Early 20th century. 14K white gold filigree pendant set with seven diamonds, 1/5 ct. total weight. With a sterling silver chain. Total weight 7.1

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