Sold2023An early to mid 20th century platinum and 18ct gold old-cut diamond floral dress ring.EstimatedAn early to mid 20th century platinum and 18ct gold old-cut diamond floral dress ring.Estimated total diamond weight 1.20cts, H-I colour, SI1-P1 clarity.Ring size O1/2. 3.3gms.See Sold Price
Sold2023An early 20th century platinum and gold, turquoise and old-cut diamond cluster brooch.TurquoiseAn 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-P1See Sold Price
Sold2015Spilla barrette in platino, primi del Novecentoincisa e sbalzata, con tre diamanti centrali taglio vecchio e diamanti taglio rosa, cts. 4.00 totali circa. Cm. 9. Gr. 8 An early 20th Century platinum brooch with old cut diamonds and rose cut diamonSee Sold Price
Sold2021A DIAMOND AND ENAMEL BROOCH, EARLY 20TH CENTURY inA 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 fSee Sold Price
Sold2018SCHUMANN & SONS DIAMOND & PLATINUM RIBBON BOW BROOCHDesigned as dimensional knotted ribbon of OMC diamonds, approx. 9.45 cts TW. Early 20th c. Stamped Schumann & Sons. 2 1/2" x 2". 19.6 dwt.See Sold Price
Sold2023Three broochesThree brooches 19th-early 20th centuryComprising two 19th Century brooches, one shell cameo and metal brooch, one garnet and gold dome brooches, and one platinum, diamond and synthetic sapphire bar pSee Sold Price
Sold2017An early 20th century diamond bar brooch. The old-cutAn early 20th century diamond bar brooch. The old-cut diamond floral cluster, with knife-edge bar sides and similarly-cut diamond collet terminals. Estimated total diamond weight 0.70ct. Length 5cms.See Sold Price
Sold2022A BELLE EPOQUE DIAMOND PENDANT / BROOCH, EARLY 20TH CENTURY in yellow gold and platinum, the foliateA 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 diaSee Sold Price
Sold2022A DIAMOND BROOCH, EARLY 20TH CENTURY in 14ct yellow gold and platinum, the scrolling body set with aA 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, stSee Sold Price
Sold2018Victorian/Edwardian platinum and multicolor 14KVictorian/Edwardian platinum and multicolor 14K gold, diamond and cultured pearl brooch. Stamped, "B14K". 11.7 grams. 1.875"L, Circa - Late 19th - Early 20th C. PROVENANCE: James Robinson, New York. FSee Sold Price
Sold2021NO RESERVE - A PERIDOT AND DIAMOND BAR BROOCH, EARLYNO 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, StampeSee Sold Price
Sold2022Kinscherf Co. Platinum and Diamond Ring80% 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. AmericSee Sold Price
Sold2017An early 20th century emerald and diamond brooch. TheAn early 20th century emerald and diamond brooch. The cylindrical emerald drop, with rose-cut diamond cap, suspended from a similarly-set floral cluster. Length 3.8cms. Weight 6.9gms.See Sold Price
Sold2021Antique Yellow Gold Diamond & Opal Cameo BroochAntique Early 20th Century Yellow & White Gold, Diamond, & Opal Cameo Brooch. Circa 1900. A rare large hand carved opal cameo of Floral in a border of old mine cut diamonds. Approximately 1.65 carats.See Sold Price
Sold2022MARCUS & CO: SAPPHIRE AND DIAMOND BROOCH/PENDANT, EARLY 20TH CENTURYMARCUS & 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 oldSee Sold Price
Sold2018AN ANTIQUE DIAMOND BRACELET, EARLY 20TH CENTURY inAN ANTIQUE DIAMOND BRACELET, EARLY 20TH CENTURY in white gold or platinum, formed of alternating floral and geometric links jewelled with old round and rose cut diamonds, unmarked, 19.5cm, 34.3g.; ANSee Sold Price
Sold2016An early 20th century diamond brooch. The old-cutAn early 20th century diamond brooch. The old-cut diamond, within a similarly-cut diamond ribbon surround, suspending an old-cut diamond two-stone drop. Estimated total diamond weight 0.75ct. Length 3See Sold Price
Sold2015Early 20th Century Platinum & Diamond Pin11.4 grams total weight. With old European and mine cut diamonds, 15 total. 3.25 ct. total, largest diamond .38cts. VS - SI clarity and I-J-K color. Small chip on central diamonds. Top of pin platinumSee Sold Price
Sold2016An early 20th century platinum diamond cocktail watch.An early 20th century platinum diamond cocktail watch. The circular-shape cream dial, with black Arabic numerals, within a single-cut diamond border, to the circular and rose-cut diamond pierced braceSee Sold Price
Sold2016A ladies early 20th century platinum diamond manualA ladies early 20th century platinum diamond manual wind cocktail watch. The white dial with black Arabic numerals and minute track, with old and single-cut diamond bezel and expandable bracelet. EstiSee Sold Price
Sold2016TIFFANY & CO. - a lady's early 20th century platinumTIFFANY & CO. - a lady's early 20th century platinum diamond cocktail watch. The circular-shape white dial with black Arabic numerals and minute track, with single-cut diamond double surround, similarSee Sold Price
Sold2022AN EARLY 20TH CENTURY CONVERTIBLE DIAMOND FLORAL TIARA/NECKLACE CIRCA 1910AN EARLY 20TH CENTURY CONVERTIBLE DIAMOND FLORAL TIARA/NECKLACE CIRCA 1910With seven graduated old mine cut diamond set gold backed silver flower heads, with screw fittings verso, one later, with roseSee Sold Price
Sold2020A mid 20th century platinum old-cut 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.See Sold Price
Sold2023Early 20th century platinum & gold diamond ringAn early 20th century platinum and gold, old and rose-cut diamond ring.Estimated total diamond weight 0.75ct. Ring size P. 5.3gms.See Sold Price
May 21Sworders Fine Art AuctioneersA Burmese sapphire and diamond brooch, early 20th century,£1,600(1 bid)
2 days LeftAdam's AuctioneersAN EARLY 20TH CENTURY DIAMOND BROOCH Of lozenge-shaped openwork design, centring a flower motif, mi€0
2 days LeftAdam's AuctioneersA LATE 19TH/ EARLY 20TH CENTURY EMERALD AND DIAMOND BROOCH Designed as a stylised flowerhead, centr€0