A SAPPHIRE AND DIAMOND NECKLACE, EARLY 20TH CENTURY set

A FINE ART DECO CEYLON NO HEAT SAPPHIRE, DIAMOND AND PEARL NECKLACE, EARLY 20TH CENTURY in platinum and yellow gold, set throughout with nine oval cut blue sapphires all totalling approximately 16.90

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

PEARL AND DIAMOND NECKLACE, EARLY 20TH CENTURY in yellow gold, comprising a single row of graduated pearls ranging 5.5mm to 2.5mm, the clasp set with a further pearl within a borer of rose cut diamond

A SAPPHIRE AND DIAMOND DRESS RING, EARLY 20TH CENTURY in 18ct yellow gold, set with a trio of graduated cushion cut blue sapphires, accented by pairs of old cut diamonds, stamped 18ct, size O / 7.25,

Art Deco Sapphire & Diamond Ring in Platinum , Early 20th century, platinum, American. Art Deco ring set with .60cttw diamonds I-G color and SI2-SI1 clarity and .50 cttw blue sapphires. Hallmark: Plat

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

NO RESERVE - A SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut blue sapphire within a border of single cut diamonds, maker's mark SH&Co, st

AN ANTIQUE SAPPHIRE AND DIAMOND CLUSTER RING, EARLY 20TH CENTURY in 18ct yellow gold and platinum, set with an oval cut sapphire within a halo of round cut diamonds, stamped 18ct Plat, size N / 6.5, 2

CARTIER, A PEARL, DIAMOND AND AMETHYST CHOKER NECKLACE, EARLY 20TH CENTURY comprising a lattice of seven rows of seed pearls, the clasp designed as a buckle, set with single cut diamonds and step cut

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

TIFFANY & CO. PLATINUM DIAMOND & SAPPHIRE RINGAmerican, late 20th- early 21st century. A platinum band channel set with alternating diamond and sapphire, size 6.25. Weighing 6 grams

Two early 20th century gold gem-set bar brooches. To include a split pearl shamrock brooch, together with a rose-cut diamond, circular-shape sapphire, split pearl and cultured pearl fly brooch. Length

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

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 SAPPHIRE AND DIAMOND BRACELET, marquise-cut sapphires within pavé-set diamond bow and brick links. Estimated total diamond weight 4.35ct, marked 'PT 950', 17.8cm long, 20.5 gram

AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND CLUSTER RING an oval-cut sapphire within a fancy pierced milgrain border of round-cut diamonds, to diamond-set shoulders. Estimated total diamond weight 0.30

AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND RING an oval-cut sapphire in a fancy claw setting, to diamond-set shoulders. French 18 carat gold assay mark, ring size J, 3.1 grams Two chips noted to the

AN EARLY 20TH CENTURY SAPPHIRE AND DIAMOND BROOCH an oval-cut sapphire spaced by old-cut diamonds and oval-cut sapphires milgrain-set within a pierced wing frame. Estimated total diamond weight 0.30ct

An early 20th century sapphire and diamond cluster ring, the central rectangular facetted sapphire surrounded by twelve pavé set old single cut diamonds in a scalloped edged setting with low pierced

An early 20th century diamond and gem-set insect brooch. Designed as an old-cut diamond fly, with oval-shape sapphires highlights and circular-shape ruby eyes, atop a plain bar. Estimated total diamon

A LATE 19TH / EARLY 20TH CENTURY BLACK OPAL AND DIAMOND NECKLACE graduated oval black opals suspended from diamond-set knife-edge bars to black opal and diamond swag links, to a diamond-set double bar

This is an antique 14K gold pendant necklace dating to the early 20th century. The pendant features a large prong set opal cabochon with vibrant green, blue, and red fire. Accented by three full cut d

An early to mid 20th century diamond and sapphire crossover ring set with an old cushion-cut diamond of approximately 0.45 carats, and an old round-cut sapphire, set in unmarked yellow metal (tests as

An early 20th century 9ct gold gem-set hinged bangle. The alternating old-cut diamond and circular-shape sapphire panel, with floral accents and rope-twist sides, to the plain half bangle. Hallmarks f