An early 20th century onyx and diamond pendant.

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

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 EARLY 20TH CENTURY DIAMOND PENDANT NECKLACE The fine cable-link chain leading to a graduated row of old brilliant-cut diamonds, suspending a pierced drop with foliate detailing, similarly-set with

AN EARLY 20TH CENTURY DIAMOND PENDANT, CIRCA 1900 Of openwork, scrolling design set with set with old European, single and rose-cut diamonds, to a similar-set diamond bale, mounted in silver and gold,

AN EARLY 20TH CENTURY ONYX AND DIAMONDS CIGARETTE CASE the rectangular polished onyx case of elliptical section with millegrain-set rose-cut diamond border detail and similarly-set scrolling clip clos

An early 20th century gold diamond pendant. The brilliant-cut diamond with an openwork rose-cut diamond pear-shape surround, suspended by a rose-cut diamond line surmount and integral trace-link chain

An early 20th-century pearl and diamond pendant and matching earrings each of open scrolling design, set throughout with round-cut diamonds and various (untested) pearls, earrings to post and butterfl

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

A PAIR OF EARLY 20TH CENTURY SAPPHIRE AND DIAMOND PENDANT EARRINGS, oval-cut sapphires in milgrain settings suspended from old-cut diamond-set articulated links, total estimated sapphire weight 4.67ct

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

AN EARLY 20TH CENTURY EMERALD AND DIAMOND NÉGLIGÉE PENDANT NECKLACE two old pear-cut diamonds within borders of calibré-cut emeralds, suspended from trace chains to a rose-cut diamond h

A PAIR OF EARLY 20TH CENTURY MOONSTONE AND DIAMOND CLUSTER PENDANT EARRINGS oval moonstones within milgrain diamond borders, to angular diamond surmounts, with lever-back hook fittings. Estimated tota

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

An early 20th century platinum and gold diamond pendant. Of circular outline, the pave-set diamond monogram reading the letters A and M, suspended from a loop surmount. Estimated total diamond weight

An early 20th century gold diamond and sapphire pendant, suspended from later integral chain.Estimated total diamond weight 0.90ct.Chain stamped 750.Length of pendant 3.8cms. 4.8gms.

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 pair of early 20th century gold chysoberyl and diamond ear pendants. Each designed as a chrysoberyl cabochon, to the knife edge bar and old-cut diamond collet surmount. Estimated total diamond weigh

Bidjar rug, Northwest Persia, early 20th Century. Stepped diamond medallions with anchor pendants surrounded by an overall Herati design, in navy and sky blue, gold, burgundy and camel on the tan fiel

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 early 20th century gold, diamond and gem-set snake pendant. The engraved head with sugarloaf emerald cabochon crest and ruby eyes, tapered to the cushion-shape ruby and vari-cut diamond coiled body

An early 20th century French gold seed pearl and diamond pendant. Of openwork design, the grooved tubular panel, with bi-colour cross detail, supporting rose-cut diamond and seed pearl floral motifs,