A DIAMOND RING, CIRCA 1920

Description

A DIAMOND RING, CIRCA 1920
Centering an old European-cut diamond, weighing 2.60 carats, accented by baguette and single-cut diamonds; mounted in platinum; size 6 1/4
Footnotes:
Accompanied by GIA Report 2235565975, dated April 18, 2025, stating the center diamond weighing 2.60 carats as Natural with a color grade of L and a clarity grade of VS1, no fluorescence. Inscribed: GIA 2235565975.

OVERALL CONDITION:
Metal unstamped and tested with XRF (X-ray fluorescence) for platinum; superficial wear in the form of minor scratches; overall good condition.

DIAMONDS: old Mine-cut, baguette and single-cut
Approximate total number: 25
Approximate total weight: center: 2.60 carats, accent: 0.50 carat
Approximate overall color and clarity: center: L, VS1, accent: H-I, VS

ADDITIONAL INFORMATION
Approximate gross weight: 3.6 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.

Buyer's Premium

32%

A DIAMOND RING, CIRCA 1920

Lot 0304

Estimate $8,000-$12,000Mar 5, 2026, 1:00 PM EST

Starting Price

Secure

$8,000

SET YOUR MAX BID

$8,000

Good Bid

$9,000

Strong Bid

$10,000

Competitive Bid

Or select a higher max bid amount

Get approved to bid.

Fine Jewelry

Mar 05, 2026 1:00 PM EST

Los Angeles, CA, United States

A DIAMOND NECKLACE, CIRCA 1920: A DIAMOND NECKLACE, CIRCA 1920Set throughout with round, transitional and old European-cut diamonds; estimated total diamond weight 5.70 carats; mounted in platinum; length 16 in.Footnotes:OVERALL

Mar 05, 2026A DIAMOND NECKLACE, CIRCA 1920

AN EMERALD AND DIAMOND RING: AN EMERALD AND DIAMOND RINGCentering an octagonal step-cut emerald, in a frame set with pear-shaped, round brilliant and baguette-cut diamonds; accompanied by a detachable sizer; with maker's mark;

Mar 05, 2026AN EMERALD AND DIAMOND RING

AN 18K WHITE GOLD, SAPPHIRE AND DIAMOND RING: AN 18K WHITE GOLD, SAPPHIRE AND DIAMOND RINGCentering a cushion-cut sapphire, flanked by modified baguette-cut diamonds; estimated sapphire weight 6.75 carats; estimated total diamond weight 0.85

Mar 05, 2026AN 18K WHITE GOLD, SAPPHIRE AND DIAMOND RING

A DIAMOND BRACELET, CIRCA 1920: A DIAMOND BRACELET, CIRCA 1920Designed as a row of old European and transitional-cut diamonds, with engraved detailing; with maker's mark for William Barthman; with serial number; estimated total

Mar 05, 2026A DIAMOND BRACELET, CIRCA 1920

A PLATINUM AND DIAMOND RING, CIRCA 1930: A PLATINUM AND DIAMOND RING, CIRCA 1930Centering an old European-cut diamond weighing 4.21 carats, flanked by round brilliant-cut diamonds; size 5 3/4Footnotes:Accompanied by GIA Report 2231871164,

Mar 05, 2026A PLATINUM AND DIAMOND RING, CIRCA 1930

A PLATINUM, EMERALD AND DIAMOND NECKLACE: A PLATINUM, EMERALD AND DIAMOND NECKLACECentering a heart-shaped emerald, suspended from a scroll motif, set throughout with marquise-shaped, round brilliant and baguette-cut diamonds; estimated

Mar 05, 2026A PLATINUM, EMERALD AND DIAMOND NECKLACE

A DIAMOND, EMERALD AND NATURAL PEARL PENDANT/BROOCH, CIRCA 1905: A DIAMOND, EMERALD AND NATURAL PEARL PENDANT/BROOCH, CIRCA 1905Designed as an openwork double-bow, centering an old European-cut diamond, weighing approximately 2.71 carats, set with old mine, old

Mar 05, 2026A DIAMOND, EMERALD AND NATURAL PEARL PENDANT/BROOCH, CIRCA 1905

A DIAMOND AND GEM-SET CLIP, CIRCA 1920: A DIAMOND AND GEM-SET CLIP, CIRCA 1920Composed of carved rubies, sapphires and emeralds of foliate design, accented by transitional, single-cut, marquise and pear-shaped diamonds; estimated total

Mar 05, 2026A DIAMOND AND GEM-SET CLIP, CIRCA 1920

TIFFANY & CO.: A SAPPHIRE AND DIAMOND RING, CIRCA 1915: TIFFANY & CO.: A SAPPHIRE AND DIAMOND RING, CIRCA 1915Centering a cushion-shaped sapphire, weighing 1.06 carats, flanked by calibré-cut diamonds and further accented by old European, old mine

Mar 05, 2026TIFFANY & CO.: A SAPPHIRE AND DIAMOND RING, CIRCA 1915

TIFFANY & CO.: A PAIR OF PLATINUM AND DIAMOND CLIPS/BROOCH, CIRCA 1930: TIFFANY & CO.: A PAIR OF PLATINUM AND DIAMOND CLIPS/BROOCH, CIRCA 1930Of geometric design, each clip centering a bullet-shaped diamond, and further enhanced by baguette, tapered baguette,

Mar 05, 2026TIFFANY & CO.: A PAIR OF PLATINUM AND DIAMOND CLIPS/BROOCH, CIRCA 1930

A DIAMOND BRACELET: A DIAMOND BRACELETDesigned as a line of square emerald-cut diamonds, weighing 29.21 carats total; mounted in 18K white gold; length 7 in.Footnotes:Accompanied by GIA Reports 1525485159, 6521505862,

Mar 05, 2026A DIAMOND BRACELET

A RUBY, SAPPHIRE AND DIAMOND BRACELET, CIRCA 1930: A RUBY, SAPPHIRE AND DIAMOND BRACELET, CIRCA 1930Composed of alternating carved oval-shaped cabochon rubies and round sapphire beads, accented throughout with transitional-cut diamonds; estimated

Mar 05, 2026A RUBY, SAPPHIRE AND DIAMOND BRACELET, CIRCA 1930

A DIAMOND AND EMERALD BRACELET, CIRCA 1920: A DIAMOND AND EMERALD BRACELET, CIRCA 1920Designed as a strap, centering a square emerald-cut diamond, weighing 2.15 carats, accented with cut-cornered square, step-cut diamonds weighing 0.70 carat

Mar 05, 2026A DIAMOND AND EMERALD BRACELET, CIRCA 1920

AN EMERALD AND DIAMOND RING, CIRCA 1915: AN EMERALD AND DIAMOND RING, CIRCA 1915Of bypass design, centering an old European-cut diamond, weighing 2.21 carats, and a round emerald weighing 1.59 carats, accented by single-cut diamonds; with

Mar 05, 2026AN EMERALD AND DIAMOND RING, CIRCA 1915

A PLATINUM AND DIAMOND RING, CIRCA 1920: A PLATINUM AND DIAMOND RING, CIRCA 1920 Centering a transitional-cut diamond, within an engraved frame set with old European and single-cut diamonds; estimated diamond weight 1.80 carats; size 6 3/4 F

Mar 05, 2026A PLATINUM AND DIAMOND RING, CIRCA 1920

A DIAMOND RING, CIRCA 1920: A DIAMOND RING, CIRCA 1920 Centering a marquise-shaped diamond; estimated diamond weight 1.65 carats; size 7 Footnotes: OVERALL CONDITION: Metal purity unstamped and tested with XRF (X-ray fluorescenc

Mar 05, 2026A DIAMOND RING, CIRCA 1920

A PINK SAPPHIRE AND DIAMOND BROOCH: A PINK SAPPHIRE AND DIAMOND BROOCHCentering an oval-shaped pink sapphire, set throughout with rose-cut diamonds and accented by calibré-cut sapphires; estimated center sapphire weight 4.45

Mar 05, 2026A PINK SAPPHIRE AND DIAMOND BROOCH

A DIAMOND RING, CIRCA 1920: A DIAMOND RING, CIRCA 1920Centering an old European-cut diamond, weighing 2.60 carats, accented by baguette and single-cut diamonds; mounted in platinum; size 6 1/4Footnotes:Accompanied by GIA Report

Mar 05, 2026A DIAMOND RING, CIRCA 1920

A DIAMOND NECKLACE, CIRCA 1920: A DIAMOND NECKLACE, CIRCA 1920Set throughout with round, transitional and old European-cut diamonds; estimated total diamond weight 5.70 carats; mounted in platinum; length 16 in.Footnotes:OVERALL

Mar 05, 2026A DIAMOND NECKLACE, CIRCA 1920

AN EMERALD AND DIAMOND RING: AN EMERALD AND DIAMOND RINGCentering an octagonal step-cut emerald, in a frame set with pear-shaped, round brilliant and baguette-cut diamonds; accompanied by a detachable sizer; with maker's mark;

Mar 05, 2026AN EMERALD AND DIAMOND RING

Related Items

Antique Vintage Art Deco Round Diamond Platinum Engagement Ring 1.60 CTW: Title: Antique Vintage Art Deco Round Diamond Platinum Engagement Ring 1.60 CTW Description: Antique Vintage Art Deco Round Diamond Platinum Engagement Ring 1.60 CTW This is an incredible antique ring

Antique Vintage Art Deco Round Diamond Platinum Engagement Ring 1.60 CTW

A PLATINUM AND DIAMOND RING, CIRCA 1930: A PLATINUM AND DIAMOND RING, CIRCA 1930Centering an old European-cut diamond weighing 4.21 carats, flanked by round brilliant-cut diamonds; size 5 3/4Footnotes:Accompanied by GIA Report 2231871164,

Mar 05, 2026A PLATINUM AND DIAMOND RING, CIRCA 1930

A PLATINUM AND DIAMOND RING, CIRCA 1920: A PLATINUM AND DIAMOND RING, CIRCA 1920 Centering a transitional-cut diamond, within an engraved frame set with old European and single-cut diamonds; estimated diamond weight 1.80 carats; size 6 3/4 F

Mar 05, 2026A PLATINUM AND DIAMOND RING, CIRCA 1920

PLATINUM AND DIAMOND RING: PLATINUM AND DIAMOND RING • Platinum • 1 round diamond weighing approximately 1.90 - 2.00 carats total (8.34 - 8.35 x 4.48 mm) • 2 baguette diamonds weighing approximately 0.25 - 0.3

PLATINUM AND DIAMOND RING

A DIAMOND RING, CIRCA 1920: A DIAMOND RING, CIRCA 1920 Centering a marquise-shaped diamond; estimated diamond weight 1.65 carats; size 7 Footnotes: OVERALL CONDITION: Metal purity unstamped and tested with XRF (X-ray fluorescenc

Mar 05, 2026A DIAMOND RING, CIRCA 1920

1920s Art Deco 1.28ctw Diamond Dome Ring, Platinum, Ring Size 7.75: Stones: diamond old european cut / transitional / single cut 1.75 - 4.3 mm approximately 1.28 total carats GI color / VS2 - I1 Ring Size: 7.75 Rise Off Of Finger: 4.8 mm Width: 12.3 mm Weight: 3.1 dwt

1920s Art Deco 1.28ctw Diamond Dome Ring, Platinum, Ring Size 7.75

Art Deco Platinum Ring 1.49 Ct Diamond J I1 with 6 Diamonds: Art Deco Platinum Ring 1.49 Ct Diamond J I1 with 6 Diamonds This exquisite Art Deco ring showcases a stunning 1.49 Ct. European-cut diamond at its center, exhibiting a beautiful J color and I1 clarity

Mar 07, 2026Art Deco Platinum Ring 1.49 Ct Diamond J I1 with 6 Diamonds

Art Deco Platinum Ring 1.49 Ct Diamond J I1 with 6 Diamonds: Art Deco Platinum Ring 1.49 Ct Diamond J I1 with 6 Diamonds This exquisite Art Deco ring showcases a stunning 1.49 Ct. European-cut diamond at its center, exhibiting a beautiful J color and I1 clarity

Mar 05, 2026Art Deco Platinum Ring 1.49 Ct Diamond J I1 with 6 Diamonds

Antique Art Deco Platinum 1.83ctw Old European Cut Diamond Ring: Antique Art Deco Platinum 1.83ctw Old European Cut Diamond Ring This exquisite Antique Art Deco Platinum Ring features a stunning graduated design adorned with Old European Cut diamonds. The centerpie

4 days LeftAntique Art Deco Platinum 1.83ctw Old European Cut Diamond Ring

Art Deco Diamond and Platinum Engagement Ring 1.75ct Center Stone: Art Deco Engagement Ring, c.1920s, platinum band, set with one approximately 1.75 ct. center diamond, L-M in color, VVS2-VS1 in clarity, surrounded by eighteen single cut diamonds each one approximate

Mar 04, 2026Art Deco Diamond and Platinum Engagement Ring 1.75ct Center Stone

Art Deco Platinum Ring with 1.89 Ct Diamond and 2 Accent Diamonds: Art Deco Platinum Ring with 1.89 Ct Diamond and 2 Accent Diamonds This exquisite Art Deco ring is crafted in platinum and showcases a stunning 1.89 Ct. diamond, boasting a G color and SI2 clarity. The

4 days LeftArt Deco Platinum Ring with 1.89 Ct Diamond and 2 Accent Diamonds

Art Deco Platinum Ring with 1.89 Ct Diamond and 2 Accent Diamonds: Art Deco Platinum Ring with 1.89 Ct Diamond and 2 Accent Diamonds This exquisite Art Deco ring is crafted in platinum and showcases a stunning 1.89 Ct. diamond, boasting a G color and SI2 clarity. The

Mar 04, 2026Art Deco Platinum Ring with 1.89 Ct Diamond and 2 Accent Diamonds

Related Searches

Diamond JewelryDiamond RingsPrice ResultsAuctions in Los Angeles

TOP