Diamond

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A Victorian Style Peridot Drop Pendant in 9K: 9K yellow gold pendant featuring a large oval shaped peridot prong set in the center of an open navette shaped base with textured foliate and seed pearl details suspending a round diamond, weighing 0.

2026

A Victorian Style Peridot Drop Pendant in 9K

Alex CooperTowson, MD

A Victorian Tsavorite Garnet Ring in 15K: c.1881, 15K yellow gold ring with hallmarks, Birmingham, England featuring a round tsavorite garnet bead set in the center of an engraved star flanked by two Old European diamonds bead set in the cent

2026

A Victorian Tsavorite Garnet Ring in 15K

Alex CooperTowson, MD

14K Gold Emerald Diamond Ring: A size 4.5 ring in yellow gold, marked 14k, with a central marquise shaped emerald flanked by diamonds. The ring weighs 5.7 grams.

2026

14K Gold Emerald Diamond Ring

Cordier AuctionsHarrisburg, PA

10K Gold, Sapphire and Diamond Bracelet: A 7" white gold bracelet marked 10k with blue sapphires and diamond accents. 5.8 grams.

2026

10K Gold, Sapphire and Diamond Bracelet

Cordier AuctionsHarrisburg, PA

Mr. Brainwash "Diamond Girl" Screenprint, 2016: Mr. Brainwash (Thierry Guetta, French, b. 1966), "Diamond Girl (Silver Edition)", Screenprint with Diamond Dust on Paper, 2016, depicting Marilyn Monroe, signed in pencil lower right, numbered edition

2026

Mr. Brainwash "Diamond Girl" Screenprint, 2016

Auctions at ShowplaceAstoria, NY

Mr. Brainwash "Diamond Girl" Screenprint, 2016: Mr. Brainwash (Thierry Guetta, French, b. 1966), "Diamond Girl (Black Edition)", Screenprint with Diamond Dust on Paper, 2016, depicting Marilyn Monroe, signed in pencil lower right, numbered edition

2026

Mr. Brainwash "Diamond Girl" Screenprint, 2016

Auctions at ShowplaceAstoria, NY

Loose Diamond - Round 4.52ct E VS1: Loose Diamond - Round 4.52ct E VS1 Source: This is a real non-mined Diamond that has been grown in a lab Shape: Round Carats: 4.52 Color: E Clarity: VS1 Certification: IGI Condition: Pre-Owned PLEASE

2026

Loose Diamond - Round 4.52ct E VS1

BidhausNew York, NY

Tiffany & Co. 18K PT950 Etoile Diamond Band: Tiffany and Company 18K Yellow Gold Platinum Etoile Diamond Band, featuring ten flush set round brilliant cut diamonds weighing approx. 0.22 carat, includes Appraisal Report # GAL20235006, dated 23 Ma

2026

Tiffany & Co. 18K PT950 Etoile Diamond Band

Auctions at ShowplaceAstoria, NY

10K Gold Diamond Double Circle Pendant 2g: 10K Gold Diamond Double Circle Pendant 2g Engraved 10k, hallmark HN in an oval

2026

10K Gold Diamond Double Circle Pendant 2g

Retro Roadshow AuctionsNew Smyrna Beach, FL

Victorian Style Gold, Silver, and Diamond Ring: Custom made ring comprised of gold and silver, set with diamonds and sapphires. Unmarked. Size 8.5. 8.8 grams total.

2026

Victorian Style Gold, Silver, and Diamond Ring

Cordier AuctionsHarrisburg, PA

Schlumberger Tiffany & Co. PT950 750 Diamond Ring: Jean Schlumberger (French, 1907-1987) for Tiffany and Company Platinum and 18K Gold Diamond Ring, hand fabricated with platinum bands adorned with sixteen prong set round brilliant cut diamonds weighi

2026

Schlumberger Tiffany & Co. PT950 750 Diamond Ring

Auctions at ShowplaceAstoria, NY

Cartier 18K Yellow Gold Diamond Band Ring: Cartier 18K Yellow Gold Diamond Band Ring, brightly polished, featuring nine channel set baguette diamonds weighing a total of approx. 1.65 carats, F-G color / VS clarity, marked: "Cartier 52 750 9599

2026

Cartier 18K Yellow Gold Diamond Band Ring

Auctions at ShowplaceAstoria, NY

Art Deco Platinum Emerald and Diamond Ring, AGL: Art Deco Platinum Emerald and Diamond Ring, featuring one centered prong set square emerald cut emerald weighing approx. 1.17 carats, accompanied by AGL Report #1152322, dated 1 December 2025, stating

2026

Art Deco Platinum Emerald and Diamond Ring, AGL

Auctions at ShowplaceAstoria, NY

Sterling Diamond Cut Fan Ring SZ 7 3g: Sterling Diamond Cut Fan Ring SZ 7 3g Engraved 925

2026

Sterling Diamond Cut Fan Ring SZ 7 3g

Retro Roadshow AuctionsNew Smyrna Beach, FL

Signed Sterling Diamond Cut Ring Sz 10 5g: Signed Sterling Diamond Cut Ring Sz 10 5g Engraved AK 925 Turkey

2026

Signed Sterling Diamond Cut Ring Sz 10 5g

Retro Roadshow AuctionsNew Smyrna Beach, FL

Signed Sterling Diamond Cluster Bypass Ring 3g sz 6.75: Signed Sterling Diamond Cluster Bypass Ring Missing Stone 3g sz 6.75 Engraved JWAR 925

2026

Signed Sterling Diamond Cluster Bypass Ring 3g sz 6.75

Retro Roadshow AuctionsNew Smyrna Beach, FL

14K Gold 1.15 Ct Diamond Ring with GIA Report: A size 9.5 ring in yellow gold and marked 14k with a 1.15 carat diamond VVS1 clarity and F color. GIA NY123106. The ring weighs 8.5 grams.

2026

14K Gold 1.15 Ct Diamond Ring with GIA Report

Cordier AuctionsHarrisburg, PA

14k White Gold and Natural Diamond Cluster Ring Sixe 7 5.3 g: 14k White Gold and Natural Diamond Cluster Ring Sixe 7 5.3 g A lovely mix of five marquise natural diamonds, eleven brilliant diamonds, and one pear shaped diamond set in a 14k white gold ring. Marked

2026

14k White Gold and Natural Diamond Cluster Ring Sixe 7 5.3 g

DuMouchellesDetroit, MI

18k White Gold, Pearl, and Natural Diamond Earrings H 0.75" 13 g 1 PAIR: 18k White Gold, Pearl, and Natural Diamond Earrings H 0.75" 13 g 1 PAIR A pair of 18k white gold earring, each featuring a central 9.5 mm black Tahitian pearl with two rings of orbiting diamonds. Mark

2026

18k White Gold, Pearl, and Natural Diamond Earrings H 0.75" 13 g 1 PAIR

DuMouchellesDetroit, MI

Natural Diamond and 14K Yellow Gold Ring, Size 7 1/2 5 g 1 PC: Natural Diamond and 14K Yellow Gold Ring, Size 7 1/2 5 g 1 PC Diamond melee: four diamonds each approximately .03ct. Impressed 14K. Yellow and white gold. Provenance: Property from a prominent B

2026

Natural Diamond and 14K Yellow Gold Ring, Size 7 1/2 5 g 1 PC

DuMouchellesDetroit, MI

Italian 18k Yellow Gold, Pearl, and Natural Diamond Collar Necklace L 16" 224 g: Italian 18k Yellow Gold, Pearl, and Natural Diamond Collar Necklace L 16" 224 g A heavy link 18k yellow gold, pearl, and diamond melee collar necklace with box clasp. Stamped ITALY 18k 750 and serial

2026

Italian 18k Yellow Gold, Pearl, and Natural Diamond Collar Necklace L 16" 224 g

DuMouchellesDetroit, MI

Ladies Platinum, 3 Carat Natural Emerald, and Diamond Pendant Necklace H 1" L 15": Ladies Platinum, 3 Carat Natural Emerald, and Diamond Pendant Necklace H 1" L 15" An oval-cut central 3 carat emerald (11.75 x 9.20 x 4.090mm) in a double halo of 32 tapered baguette cut natural diamo

2026

Ladies Platinum, 3 Carat Natural Emerald, and Diamond Pendant Necklace H 1" L 15"

DuMouchellesDetroit, MI

18k White Gold, Natural Amethyst, Sapphire, Ruby, and Diamond Panther Brooch H 2" 34 g: 18k White Gold, Natural Amethyst, Sapphire, Ruby, and Diamond Panther Brooch H 2" 34 g This striking brooch features a pavé diamond encrusted panther with blue sapphire accents and ruby e

2026

18k White Gold, Natural Amethyst, Sapphire, Ruby, and Diamond Panther Brooch H 2" 34 g

DuMouchellesDetroit, MI

Natural Emerald and Diamond Cluster Ring, 14k Gold Size 7 1/2 1960, 8 g 1 PC: Natural Emerald and Diamond Cluster Ring, 14k Gold Size 7 1/2 1960, 8 g 1 PC White and yellow gold. Six pear shape emeralds each approximately .30 -.50ct.Five accent diamonds. Impressed 585 and 14K.&n

2026

Natural Emerald and Diamond Cluster Ring, 14k Gold Size 7 1/2 1960, 8 g 1 PC

DuMouchellesDetroit, MI

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Diamond Auctions

HUGE & RARE 4 Ct Treated Certified Off White Diamond Solitaire Stud, 925 Silver

Rare 12 Ct Certified HPHT - Treated Off White Diamond Solitaires Ring In 925 Silver

20 Ct Certified HPHT Treated Gorgeous Off White Diamond Engagement Ring.925 Silver

Diamond Jewelry

Believe Diamond Hong Kong

Starts on:

Kowloon, Hong Kong , HK

2 days Left

IGI Marquise 2.08ct F VVS1 - Loose Lab Diamond

IGI Oval 1.93ct D IF - Loose Lab Diamond

IGI Radiant 1.55ct E VVS2 - Loose Lab Diamond

Luminesce Lab: Diamonds & Beyond

Starts on:

Raleigh, NC, US

14 hrs Left

IGI Cushion Modified 2.55ct D VVS1 - Loose Lab Diamond

IGI Round 1.49ct E VVS2 - Loose Lab Diamond

IGI Round 1.49ct F VVS2 - Loose Lab Diamond

Luminesce Lab: Diamonds & Beyond

Starts on:

Raleigh, NC, US

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