A DIAMOND RING, CIRCA 1920

Description

A DIAMOND RING, CIRCA 1920
Centering a circular brilliant-cut diamond, weighing 3.95 carats, in an openwork mounting, accented by transitional-cut diamonds at each shoulder; estimated total accent diamond weight 0.20 carat; size 6 1/4 in.
Footnotes:
Accompanied by GIA Report 2235906538, dated March 20, 2026, stating the center diamond weighing 3.95 carats as Natural with a color grade of K and a clarity grade of SI2, faint fluorescence.

OVERALL CONDITION:
Metal purity unstamped and tested with XRF (X-ray fluorescence) for platinum; at least two (2) accent diamonds show chips; superficial wear in the form of minor scratches; overall good condition.

CENTER DIAMOND: circular brilliant-cut
Total weight: 3.95 carats
Color and clarity: K, SI2

ACCENT DIAMONDS: transitional-cut
Approximate total number: 6
Approximate total weight: 0.20 carat
Approximate overall color and clarity: I-J, VS-I

ADDITIONAL INFORMATION:
Approximate gross weight: 3.3 grams

This condition report is provided for your convenience based on the opinion of our gemologists. Bonhams is not responsible for any discrepancies between this information and other opinions.
For further information on this lot please visit Bonhams.com

Buyer's Premium

32%

A DIAMOND RING, CIRCA 1920

Lot 0287

Estimate $10,000-$15,000May 19, 2026, 1:00 PM EDT

Starting Price

Secure

$10,000

SET YOUR MAX BID

Good Bid

Strong Bid

Competitive Bid

Or select a higher max bid amount

1 bidder is watching this item

Get approved to bid.

Fine Jewelry California

May 19, 2026 1:00 PM EDT

Los Angeles, CA, United States

A DIAMOND RING: A DIAMOND RING Centering an old mine-cut diamond, flanked by old European-cut diamonds; estimated center diamond weight 3.10 carats; estimated accent diamond weights 1.20 carats and 1.15 carats, respe

May 19, 2026A DIAMOND RING

A PLATINUM AND DIAMOND RING: A PLATINUM AND DIAMOND RING Centering a round brilliant-cut diamond, flanked by pairs of marquise-shaped diamonds; estimated center diamond weight 2.55 carats; size 7 Footnotes: OVERALL CONDITION: Met

May 19, 2026A PLATINUM AND DIAMOND RING

MASRIERA: AN 18K GOLD, ENAMEL, CULTURED PEARL AND GEM-SET 'NYMPHS' PENDANT/BROOCH: MASRIERA: AN 18K GOLD, ENAMEL, CULTURED PEARL AND GEM-SET 'NYMPHS' PENDANT/BROOCH Designed as an ascending nymph in a halo of calibré-cut rubies, enamel drape and plique-à-jour wings,

May 19, 2026MASRIERA: AN 18K GOLD, ENAMEL, CULTURED PEARL AND GEM-SET 'NYMPHS' PENDANT/BROOCH

MASRIERA: AN 18K GOLD, ENAMEL AND GEM-SET 'NYMPHS' PENDANT/BROOCH: MASRIERA: AN 18K GOLD, ENAMEL AND GEM-SET 'NYMPHS' PENDANT/BROOCH Designed as a nymph in flight, with enamel drape and plique-à-jour wings, accented with round brilliant-cut diamonds and round

May 19, 2026MASRIERA: AN 18K GOLD, ENAMEL AND GEM-SET 'NYMPHS' PENDANT/BROOCH

MASRIERA Y CARRERA: AN 18K GOLD, SAPPHIRE, DIAMOND AND ENAMEL RING: MASRIERA Y CARRERA: AN 18K GOLD, SAPPHIRE, DIAMOND AND ENAMEL RING Centering an octagonal-shaped sapphire, flanked by foliate-inspired enamelwork, framed by old mine and round brilliant-cut diamonds;

May 19, 2026MASRIERA Y CARRERA: AN 18K GOLD, SAPPHIRE, DIAMOND AND ENAMEL RING

TIFFANY & CO.: A 14K PINK GOLD, ENAMEL AND DIAMOND PENDANT/BROOCH, CIRCA 1900: TIFFANY & CO.: A 14K PINK GOLD, ENAMEL AND DIAMOND PENDANT/BROOCH, CIRCA 1900 Designed as a pansy, centering an old mine-cut diamond, the petals accented with rose-cut diamonds; signed Tiffany & Co.;

May 19, 2026TIFFANY & CO.: A 14K PINK GOLD, ENAMEL AND DIAMOND PENDANT/BROOCH, CIRCA 1900

AN 18K GOLD BRACELET, CIRCA 1950: AN 18K GOLD BRACELET, CIRCA 1950 A strap bracelet of woven motif; with maker's mark; with Italian registered trademark; length 7 3/4 in.; width 1 in. Footnotes: OVERALL CONDITION: Metal stamped and

May 19, 2026AN 18K GOLD BRACELET, CIRCA 1950

AN ENAMEL BRACELET, CIRCA 1880: AN ENAMEL BRACELET, CIRCA 1880 A hinged bangle designed with an Egyptian-inspired motif, with blue and black enamel detail; fabricated in 18k gold; inner circumference 6 1/4 in.; center width 1 1/4

May 19, 2026AN ENAMEL BRACELET, CIRCA 1880

AN 18K GOLD NECKLACE: AN 18K GOLD NECKLACE A fancy link longchain necklace; length 68 in. Footnotes: OVERALL CONDITION: Metal stamped and tested with XRF (X-ray fluorescence) for 18k gold, clasp tested for low karat gold;

May 19, 2026AN 18K GOLD NECKLACE

A DIAMOND RING: A DIAMOND RING Centering an old mine-cut diamond, weighing 2.59 carats, in a surround of old mine-cut diamonds, with scrolling openwork shoulders; estimated remaining diamond weight 2.05 carats;

May 19, 2026A DIAMOND RING

AN AQUAMARINE AND DIAMOND NECKLACE: AN AQUAMARINE AND DIAMOND NECKLACE The pendant comprising an octagonal step-cut aquamarine, accented with round brilliant and single-cut diamonds and gold granulation detailing, completed by a box

May 19, 2026AN AQUAMARINE AND DIAMOND NECKLACE

A 14K GOLD AND DIAMOND RING, CIRCA 1890: A 14K GOLD AND DIAMOND RING, CIRCA 1890 Designed as a lioness clutching an old European-cut diamond in her jaws, with transitional-cut diamond eyes; estimated center diamond weight 0.80 carat; size 6

May 19, 2026A 14K GOLD AND DIAMOND RING, CIRCA 1890

A CONVERTIBLE DIAMOND NECKLACE, CIRCA 1880: A CONVERTIBLE DIAMOND NECKLACE, CIRCA 1880 A fringe necklace, set across with old mine-cut diamonds and diamond chips, with convertible backchain to be worn as a bracelet; with possible partial

May 19, 2026A CONVERTIBLE DIAMOND NECKLACE, CIRCA 1880

A DIAMOND AND SAPPHIRE RING, CIRCA 1915: A DIAMOND AND SAPPHIRE RING, CIRCA 1915 Centering a circular brilliant-cut diamond, weighing 2.42 carats, in a mounting accented with calibré-cut sapphires and single-cut diamonds; with partial

May 19, 2026A DIAMOND AND SAPPHIRE RING, CIRCA 1915

A PLATINUM AND DIAMOND WRISTWATCH, CIRCA 1920: A PLATINUM AND DIAMOND WRISTWATCH, CIRCA 1920 Designed with manual movement, rectangular dial unsigned, with Arabic numeral hour markers, case and strap bracelet accented with old European, old mine

May 19, 2026A PLATINUM AND DIAMOND WRISTWATCH, CIRCA 1920

A PLATINUM, DIAMOND AND SAPPHIRE RING, CIRCA 1920: A PLATINUM, DIAMOND AND SAPPHIRE RING, CIRCA 1920 Centering an old European-cut diamond, weighing 2.09 carats, in an openwork mounting accented with old European and single-cut diamonds and

May 19, 2026A PLATINUM, DIAMOND AND SAPPHIRE RING, CIRCA 1920

A DIAMOND BROOCH, CIRCA 1910: A DIAMOND BROOCH, CIRCA 1910 Of ornate, openwork design, set across with old European, old mine and single-cut diamonds; estimated total diamond weight 4.95 carats; mounted in white gold-plated

May 19, 2026A DIAMOND BROOCH, CIRCA 1910

A DIAMOND RING, CIRCA 1920: A DIAMOND RING, CIRCA 1920 Centering a round brilliant-cut diamond, weighing 1.90 carats, in an openwork mounting accented with single-cut diamonds; mounted in platinum; size 6 Footnotes: Accompanied

May 19, 2026A DIAMOND RING, CIRCA 1920

A PLATINUM AND DIAMOND BRACELET, CIRCA 1920: A PLATINUM AND DIAMOND BRACELET, CIRCA 1920 Of repeating, openwork buckle motif, accented with old European, old mine, single, transitional and octagonal step-cut diamonds; estimated total diamond

May 19, 2026A PLATINUM AND DIAMOND BRACELET, CIRCA 1920

A PAIR OF 18K WHITE GOLD AND DIAMOND EARCLIPS: A PAIR OF 18K WHITE GOLD AND DIAMOND EARCLIPS Comprising round brilliant and baguette-cut diamonds, with hidden pendant wires; estimated total diamond weight 2.75 carats; measures 1 15/16 x 7/16 in.

May 19, 2026A PAIR OF 18K WHITE GOLD AND DIAMOND EARCLIPS

Related Items

Art Deco Platinum Ring 6.41 Ct Diamond VS1 Clarity: Art Deco Platinum Ring 6.41 Ct Diamond VS1 Clarity This exquisite Art Deco ring features a stunning 6.41 Ct. European-cut diamond, showcasing a remarkable M-N color and VS1 clarity. The ring is furthe

May 17, 2026Art Deco Platinum Ring 6.41 Ct Diamond VS1 Clarity

Platinum Art Deco Diamond Engagement Ring 3.19 Carats Vintage: Platinum Art Deco Diamond Engagement Ring 3.19 Carats Vintage This Art Deco style ring is crafted from platinum and features a total diamond weight of 3.19 carats. The ring is pre-owned and weighs 4.1

7 days LeftPlatinum Art Deco Diamond Engagement Ring 3.19 Carats Vintage

Platinum Art Deco Engagement Ring with 4.27 Ct Old European Diamond: Platinum Art Deco Engagement Ring with 4.27 Ct Old European Diamond This Art Deco platinum engagement ring features a 4.27 carat old European-cut diamond with G color and SI2 clarity as the centerpiec

5 days LeftPlatinum Art Deco Engagement Ring with 4.27 Ct Old European Diamond

1.33 CARAT CIRCULAR BRILLIANT AND ROUND BRILLIANT DIAMOND PLATINUM ART DECO RING: 1.33 CARAT CIRCULAR BRILLIANT AND ROUND BRILLIANT DIAMOND PLATINUM ART DECO RING Title: 1.33 Carat Circular Brilliant Cut E SI2 and Round Brilliant G SI1 Diamond Platinum Art Deco Ring Style: Art Deco

May 17, 20261.33 CARAT CIRCULAR BRILLIANT AND ROUND BRILLIANT DIAMOND PLATINUM ART DECO RING

Art Deco Platinum Ring 3.96 Ct Old Cushion Diamond: Art Deco Platinum Ring 3.96 Ct Old Cushion Diamond This stunning Art Deco ring showcases a magnificent 3.96 Ct. Old Cushion-cut diamond, characterized by its M color and SI3 clarity. The ring is craft

6 days LeftArt Deco Platinum Ring 3.96 Ct Old Cushion Diamond

A DIAMOND RING: A DIAMOND RING Centering an old mine-cut diamond, flanked by old European-cut diamonds; estimated center diamond weight 3.10 carats; estimated accent diamond weights 1.20 carats and 1.15 carats, respe

May 19, 2026A DIAMOND RING

A PLATINUM AND DIAMOND RING: A PLATINUM AND DIAMOND RING Centering a round brilliant-cut diamond, flanked by pairs of marquise-shaped diamonds; estimated center diamond weight 2.55 carats; size 7 Footnotes: OVERALL CONDITION: Met

May 19, 2026A PLATINUM AND DIAMOND RING

AN EARLY 20TH CENTURY DIAMOND THREE-STONE RING The central old cushion-shaped diamond weighing: AN EARLY 20TH CENTURY DIAMOND THREE-STONE RING The central old cushion-shaped diamond weighing approximately 3.70cts, between two similarly-cut diamonds and old European-cut diamond shoulders within m

4 days LeftAN EARLY 20TH CENTURY DIAMOND THREE-STONE RING The central old cushion-shaped diamond weighing

AN EARLY 20TH CENTURY DIAMOND SINGLE-STONE RING, CIRCA 1920 Composed of an old European-cut diamond: AN EARLY 20TH CENTURY DIAMOND SINGLE-STONE RING, CIRCA 1920 Composed of an old European-cut diamond at the centre weighing approximately 2.20cts, within millegrain collet-setting and accented with fou

4 days LeftAN EARLY 20TH CENTURY DIAMOND SINGLE-STONE RING, CIRCA 1920 Composed of an old European-cut diamond

Ladies' Art Deco Diamond & Platinum Ring: Ladies' Art Deco Diamond & Platinum Ring Weight: 2.15 grams. Purchase Note: New customers purchasing silver, gold, or jewelry are required to make payment by wire or check unless previously discussed

May 21, 2026Ladies' Art Deco Diamond & Platinum Ring

Art Deco Platinum and Old European Cut Diamond Ring: METAL: Platinum; APPROXIMATE TOTAL DIAMOND WEIGHT: 1.77 ctw; GEMSTONES: Center stone approx. 1.37 carats, Weight estimated by formula; STAMPED: Plat, rubbed marks; CONDITION: Pre-owned, Good; ITEM WEI

4 days LeftArt Deco Platinum and Old European Cut Diamond Ring

Antique Vintage Art Deco Round Diamond Platinum Engagement Ring 1.60 CTW: Antique Vintage Art Deco Round Diamond Platinum Engagement Ring 1.60 CTW This is an incredible antique ring worn by an elegant woman from Argentina circa 1920 - 1930. Don't hesitate to ask any questio

Antique Vintage Art Deco Round Diamond Platinum Engagement Ring 1.60 CTW

TOP