Mid 20th c Platinum & Diamond Brooch

A mid 20th century platinum old-cut diamond brooch, with baguette-cut diamond accents. Estimated total diamond weight 4cts.French re-strike marks. Length 3.2cms. 11.7gms.

A lady's mid 20th century platinum diamond manual wind cocktail watch. The rectangular-shape cream dial, with black Arabic numerals, to the single-cut diamond surround and old-cut diamond geometric op

A mid 20th century diamond brooch. Designed as two alternately orientated foliate sprays, set throughout with vari-cut diamonds. Estimated total diamond weight 6.50 to 7cts, principal diamonds estimat

A mid 20th century platinum diamond cluster ring. The old-cut diamond cluster, with pierced gallery and plain band. Estimated total diamond weight 1ct, I-J colour, SI clarity. French assay marks. Ring

A mid 20th century platinum diamond cocktail watch. The rectangular-shape cream dial with Arabic numerals, with single and baguette-cut diamond sides, to the single-cut diamond openwork links. Estimat

A mid 20th century platinum, sapphire and diamond cluster ring. The rectangular-shape sapphire, within a circular-cut diamond scalloped surround, to the openwork gallery. Estimated total diamond weigh

A mid 20th century diamond double clip brooch, the two asymmetrical but identical pieces of pierced, swirling and curling design, abutting at a diagonal, set throughout with round brilliant, single an

A MID 20TH CENTURY SAPPHIRE, EMERALD AND DIAMOND CORNFLOWER BROOCHThe flower head with illusion set calibré cut sapphire petals, with central channel set step cut emerald fronds and rose cut diam

A mid 20th century sapphire and diamond floral spray brooch. The circular-shape sapphire, old and rose-cut diamond flowers, with similarly-cut diamond leaves and stem. Estimated total old-cut diamond

A mid 20th century cultured pearl and diamond floral spray brooch. The vari-cut diamond flowers, buds and leaves, gathered by an old-cut diamond ribbon, to the cultured pearl highlights. Two diamonds

Fine Pair of Art Moderne Diamond Ear Clips mid-20th century, platinum, each with a cluster of prong-set round brilliant diamonds above a spray of channel-set baguette diamond rays, with an approximate

Platinum & diamond flower brooch, 20th c., set with marquise, circular and baguette cut diamonds, est 5.0 carats, G-H color, approx. 8.38 dwt. (total), unmarked Provenance: A Private Collection: 1111

DIAMOND BROOCH, ST GEORGE AND THE DRAGON, MID 20TH CENTURY modelled as St George on horseback slaying a dragon beneath a crown, set with single-cut diamonds, the eyes of the dragon and horse accented

14 karat gold Germany, mid-20th century Hallmarked with the fineness and the maker’s mark ‘KP’ (not identified) on the reverse Brooch in the form of a violet bouquet with amethyst flowers and ja

Fully marked on back. In the Beaux -Arts taste, early 20thC. From the same estate as the matching ring (lot 36). Missing one emerald baguette. H 1 W 2 D 1/8 Weight 8 Grams Missing one emerald baguette

An early 20th century platinum and gold, turquoise and old-cut diamond cluster brooch.Turquoise estimated dimensions of 17.6 by 16 by 8.5mms.Estimated total diamond weight 3.90cts, G-I colour, SI1-P1

A mid 20th century silver sapphire cabochon and old-cut diamond floral brooch.Sapphire calculated weight 12.42cts, based on estimated dimensions of 12.6 by 11 by 8.3mms.Estimated total diamond weight

80% Platinum Art Nouveau style floral ring with one larger center diamond and ten surrounding diamonds. Produced by the William Kinscherf Company of New York City, ca. early - mid 20th century. Americ

An antique (ca early/mid 20th century) 14K yellow (rose-ish coloring) gold brooch, with pin back, featuring an oval emerald approx 7.5mm x 7mm, and with channel set and prong set old mine-cut diamond

American, early-mid 20th century. Horseshoe shaped brooch, 16-18K (tested with x-ray metal tester), set with 35 graduated old European cut diamonds, approx. 2.50cts. total weight. Measures approx. 1.5

DIAMOND DOUBLE-CLIP BROOCH, MID 20TH CENTURY Old brilliant, brilliant, single and tapered-baguette-cut diamonds, approx. 2.50cts total Length 3.9cm Weight approx. 19.0g Footnotes: OVERALL CONDITION Li

GRAPE VINE FORM 18KT GOLD DIAMOND FRENCH ART NOUVEAU STYLE PENDANT BROOCH An impressive mid 20th century French Art Nouveau style 18kt Gold & Diamond Grape Vine Pendant Brooch, marked 'FRANCE 18K' wi

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

VINTAGE PLATINUM AND DIAMOND RING Mid- to Late 20th Century Central approx. 0.65 ct. round-cut diamond, approx. I1 clarity, K-L color, surrounded by 22 single-cut diamonds, approx. 0.22 ctw., and eigh