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Platinum Band With Five Rectangular Step Cut Diamonds 1.11ctw Vintage Ring Size 6: Platinum Band With Five Rectangular Step Cut Diamonds 1.11ctw Vintage Ring Size 6 This vintage wedding band ring features five natural, rectangular step cut diamonds with a total carat weight of 1.11.

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7.85 Carat Pink Sapphire Emerald Step Cut GGI Certified: Facets, offering a sophisticated "hall-of-mirrors" effect. Often sourced from Sri Lanka and possessing high transparency, this substantial stone typically showcases a vibrant pink color, ideal for hig

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10K White Gold and Step Cut Sapphire Tennis Necklace: METAL: 10K White Gold; GEMSTONES: Sapphire; TESTED: 10K White Gold; CONDITION: Pre-owned, Very Good; ITEM WEIGHT (GRAMS): 41.7 g; MEASUREMENTS: Necklace 17 1/2 inches long

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7.95 Carat --Ceylon Pink Sapphire-- Emerald Step Cut --GGI Certified: Emerald Step Cut. This architectural style features long, rectangular facets that create a "hall-of-mirrors" effect. Eye Clean, with a stunning pastel pink. This is one eye catching stone.

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21 past auction results for "100-irid-900-plat"

Browse a record of outcomes from past auctions, including sale prices and unsold items.

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Vintage Platinum Step-Cut Sapphire and Diamond Ring: METAL: Platinum; APPROXIMATE TOTAL DIAMOND WEIGHT: 0.25 ctw; GEMSTONES: Sapphire weighing approx. 1.20 carats; STAMPED: 900 Plat 100 Irid; CONDITION: Pre-owned, Good; ITEM WEIGHT (GRAMS): 5.51 g; MEAS

2025

Vintage Platinum Step-Cut Sapphire and Diamond Ring

Hampton Estate AuctionNew York, NY

ESTATE PLATINUM & 0.22CTTW DIAMOND RING: Estate platinum (tested) and diamond ring, narrow band set with (seven) round diamonds, approx 0.22cttw, average color: H-I, average clarity: SI, hallmarked 900 Plat. 100 Irid., approx size 5.5, 2.4 g

2025

ESTATE PLATINUM & 0.22CTTW DIAMOND RING

Austin Auction GalleryAustin, TX

Platinum Tapered Baguette Diamond Engagement Ring Setting: Diamonds weighing approx. 0.08 ctw. Ring size 6, center will fit approx. 6mm stone. Stamped 100 Irid 900 Plat (partially erased). 3.2 grams. Gemstones have not been graded for color and clarity, and t

2025

Platinum Tapered Baguette Diamond Engagement Ring Setting

Hampton Estate AuctionNew York, NY

PLATINUM AND DIAMOND RING: 1.25-1.50 ct Center Cushion cut diamond, flanked by 2 baguettes (.25 cttw) / yellow tint to diamond / marked 900 PLAT 100 IRID / Weight: 3.3g / Measurements: Size 6, 1.5-1.75 cttw/ ONLINE PAY MSG ****

2024

PLATINUM AND DIAMOND RING

Dargate Auction GalleriesBlairsville , PA

PLATINUM AND DIAMOND BRACELET: .5 ct Marquis cut center diamond, flanked by baguettes and 6 round cut / 2.375 cttw / with safety chain / marked PLAT 900 IRID 100 / Weight: 21g / Measurements: 6.5" long / 2.375 cttw/ ONLINE PAY MSG

2024

PLATINUM AND DIAMOND BRACELET

Dargate Auction GalleriesBlairsville , PA

Art Deco Platinum Diamond Pearl Ring: METAL: Platinum. GEMSTONES: Diamonds approx. 0.20ctw. Pearl - 5.9mm (glue residue is present on stone). MEASUREMENTS: Ring size 6 1/2, top is 9.8mm. MARKED: Engraving, 900 Plat 100 Irid. WEIGHT: 3 gra

2024

Art Deco Platinum Diamond Pearl Ring

Hampton Estate AuctionLambertville, NJ

Platinum Diamond Granat Ladies Watch: Platinum Diamond Granat Ladies Watch. Watch marked Granat 17 Jewels. Inner case marked "Granat 900 Plat 100 Irid, 06264." Band is gold filled. Watch face 0.5L x 0.375W in. Inner circumference of band

2024

Platinum Diamond Granat Ladies Watch

Clark's Auction CompanyScotts Valley, CA

One Platinum Amethyst Ring With One Set Of 14 Karat Yellow Gold Pearl Earrings: Including a platinum (stamped "900 PLAT 100 IRID") ring set with five round cut Amethysts, approximate total amethyst weight 0.82 carats, 7.4 grams, size 7; together with one pair 14 Karat yellow gold

2023

One Platinum Amethyst Ring With One Set Of 14 Karat Yellow Gold Pearl Earrings

Abell AuctionLos Angeles, CA

Platinum and Gold Jewelry Assortment: Platinum and Gold Jewelry Assortment (6) items including a marked '.100 IRID 900 PLAT' diamond ring; 23k gold bar having a diamond with a 14k gold bail; 15k gold and diamond ring; and (3) 14k scrap go

2022

Platinum and Gold Jewelry Assortment

Leonard Auction, a division of The Leonard CompanyAddison, IL

DIAMOND RING: DIAMOND RING Containing one old European cut diamond weighing approximately 0.45 carat and 14 single cut diamonds. Mounted in platinum. Ring size 5 1/4. Stamp: 100 IRID 900 PLAT. 1.60 dwt.

2021

Freeman'sChicago, IL

Antique Platinum Diamond Engagement Wedding Ring: METAL: platinum. GEMSTONES: diamonds-approx. 0.60ctw (2 stones missing). MEASUREMENTS: ring size 5. Engagement ring center will keep approx. 8 x 8mm stone. MARKED: plat. 900 Plat 100 Irid. WEIGHT: 9.6

2018

Antique Platinum Diamond Engagement Wedding Ring

Hampton Estate AuctionLahaska, PA

Platinum & Diamond Hamilton Watch 14K Gold Band: Platinum Hamilton watch with diamonds set into the face on a 14K gold band. Watch is marked 900 Plat. 100 IRID and band is marked 14K. Shipping available within the continental United States (excludes

2017

Platinum & Diamond Hamilton Watch 14K Gold Band

Main Street Auctions & Estate LiquidatorsWoodbury, CT

Platinum Diamond Engagement Ring: METAL: platinum. GEMSTONES: center diamond-approx. 0.52ct, 16 side diamonds approx. 0.20ctw. MEASUREMENTS: ring size 4.75. Ring top is 6mm at widest point. MARKED: 900 Plat 100 Irid. WEIGHT: 3.0 grams

2017

Platinum Diamond Engagement Ring

Hampton Estate AuctionLahaska, PA

PLATINUM & DIAMOND ENGAGEMENT RING, 0.60CT: Set with a round diamond approx. 0.60 carats (feathering at one prong, and at least one cloud observed off center, else appears clean), flanked by 12 diamond melee, stamped '900 Plat 100 Irid.', size

2017

PLATINUM & DIAMOND ENGAGEMENT RING, 0.60CT

Leighton GalleriesWaldwick, NJ

Art Deco Platinum Diamond Onyx Square Ring: METAL: platinum. GEMSTONES: diamonds-approx. 0.77ctw,onyx. MEASUREMENTS: ring size 8.25. Ring top is 16.2mm x16.2mm. MARKED: 900 Plat,100 Irid. WEIGHT: 5.38 grams.Gemstones have not been graded for co

2017

Art Deco Platinum Diamond Onyx Square Ring

Hampton Estate AuctionLahaska, PA

Platinum Ring with Diamonds: 900 PLAT 100 IRID. Features (1) 4.0mm round Diamond flanked by (2) 2.36mm round Diamonds, approx. 0.33ctw. Size 6 1/4. 3.5gtw.

2016

Platinum Ring with Diamonds

Alderfer AuctionHatfield, PA

PLATINUM WEDDING BAND RING SIZE 5: SIGNED "100 IRID /900 PLAT" VINTAGE ESTATE

2016

PLATINUM WEDDING BAND RING SIZE 5

Imperial AuctionFort Myers, FL

PLATINUM & DIAMOND ENGAGEMENT RING, 0.75CT: set with a single round diamond approx. 0.75 carats, flanked by 2 diamond melee, setting stamped 900 Plat., 100 Irid, 3.6gms.

2014

PLATINUM & DIAMOND ENGAGEMENT RING, 0.75CT

Leighton GalleriesWashington Township (Bergen), NJ

PLATINUM & DIAMOND WEDDING SET, 0.95CTW: the engagement ring set with a round diamond approx. 0.75 carats flanked by 6 diamond melee, the band set with 7 round diamonds approx. 0.14 carats, settings stamped 900 Plat.100 Irid, 8.1gms.

2014

PLATINUM & DIAMOND WEDDING SET, 0.95CTW

Leighton GalleriesWashington Township (Bergen), NJ

14 Kt. Cuff Bracelet Inset With Watch: lady's vintage (stamped) 14 kt. white gold hinged cuff bracelet with vertical ribbed pattern, inset white gold wristwatch marked "Solar" on dial, watch case marked "900 Plat, 100 Irid", 17-jewel Swiss

2012

14 Kt. Cuff Bracelet Inset With Watch

Brunk AuctionsAsheville, NC

Hamilton Platinum and Diamond Lady's Watch,: Hamilton Platinum and Diamond Lady's Watch, underside of case marked "900 PLAT / .100 IRID", set with (24) round brilliant cut diamonds weighing 0.70 carats, with 1979 Bailey, Banks & Biddle appraisal

2009

Hamilton Platinum and Diamond Lady's Watch,

Leland Little

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