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Platinum GIA Certified 2ctw Colombian Emerald Diamond Flared Cocktail Ring: Platinum GIA Certified 2ctw Colombian Emerald Diamond Flared Cocktail Ring This stunning cocktail ring features a high-quality 2 carat total weight Colombian emerald, elegantly showcased in an octagon

4 days Left

Platinum GIA Certified 2ctw Colombian Emerald Diamond Flared Cocktail Ring

Est. $4,862-$6,320

$100

Mynt AuctionsNew York, NY

A 14ct gold and platinum brooch set with diamonds (ca. 1.19ct): A 14ct gold and platinum brooch set with diamonds (ca. 1.19ct)14 ct Weißgold, Platin doubliert. Durchbrochen gearbeitete Brosche mit zahlreichen Diamanten besetzt. Mittig zwei große, in geschlossene

4 days Left

A 14ct gold and platinum brooch set with diamonds (ca. 1.19ct)

Est. €1,750-€3,500

€1,700

Hermann Historica GmbHGrasbrunn / Munich, Bavaria

ANTIQUE 1.30CT PLATINUM DIAMOND RING: An intricate Platinum setting makes this antique ring a uniquely elegant piece that will continually impress. Inset Diamonds with a total weight of 1.30 carats allow it to continually catch the light

2 days Left

ANTIQUE 1.30CT PLATINUM DIAMOND RING

Est. $1,400-$5,600

$1,400

Robinhood AuctionsLas Vegas, NV

Yellow Sapphire and Diamond Halo Ring 18k Gold Platinum GIA GRS Certified 14.22ctw: Yellow Sapphire and Diamond Halo Ring 18k Gold Platinum GIA GRS Certified 14.22ctw This un-used cocktail ring features a large, natural octagonal-cut yellow sapphire weighing 11.47 carats, certified b

May 21, 2026

Yellow Sapphire and Diamond Halo Ring 18k Gold Platinum GIA GRS Certified 14.22ctw

Est. $22,607-$29,389

$100

Mynt AuctionsNew York, NY

4 days Left

MELEE DIAMOND DESIGN PENDANT HEAD PLATINUM MELEE DIAMOND

Est. $1,650-$2,420

$25

NY Elizabeth Beverly Hills, CA

2 days Left

JEWELRY MAKI DIAMOND RING PT850 PLATINUM

Est. $2,625-$3,850

$25

NY Elizabeth Beverly Hills, CA

Tiffany & Co. Diamond Platinum Star Pendant Necklace: Tiffany & Co. Diamond Platinum Star Pendant Necklace Elevate your jewelry collection with this exquisite Tiffany & Co. Diamond Platinum Star Necklace. This authentic piece features a beautifully craft

May 22, 2026

Tiffany & Co. Diamond Platinum Star Pendant Necklace

Est. $4,355-$5,661

$100

Mynt AuctionsNew York, NY

PLATINUM 1.65CT DIAMOND HEART NECKLACE: A necklace designed to reward closer inspection. This piece treats the heart not as a symbol alone, but as a form shaped by detail and intention. The heart pendant, pave set with diamonds, creates a c

2 days Left

PLATINUM 1.65CT DIAMOND HEART NECKLACE

Est. $2,000-$8,000

$2,000

Robinhood AuctionsLas Vegas, NV

Platinum Eternity Ring Set with 40 Diamonds 4.50 Ct F-G VVS-VS: Platinum Eternity Ring Set with 40 Diamonds 4.50 Ct F-G VVS-VS This exquisite Platinum 2 Diamond Eternity Ring Set features a total of 40 sparkling diamonds with an approximate total weight of 4.50 Ct

3 days Left

Platinum Eternity Ring Set with 40 Diamonds 4.50 Ct F-G VVS-VS

Est. $4,862-$6,320

$100

Mynt AuctionsNew York, NY

PLATINUM 1.30CT DIAMOND AND EMERALD RING: This dazzling ring is chic and incredibly sophisticated. A 1.35 carat Emerald center stone adds a vibrant pop of color, while Diamonds totaling 1.30 carats provide the perfect amount of sparkle. Made

2 days Left

PLATINUM 1.30CT DIAMOND AND EMERALD RING

Est. $2,400-$9,600

$2,400

Robinhood AuctionsLas Vegas, NV

4 days Left

4? DIAMOND DESIGN NECKLACE PLATINUM PENDANT NECKLACE

Est. $975-$1,430

$25

NY Elizabeth Beverly Hills, CA

PLATINUM 0.71CT DIAMOND PENDANT NECKLACE: This scintillating necklace is meant to continually catch the light. Crafted from Platinum, this piece comes to life thanks to a 0.31 carat Diamond center stone and Diamond accents totaling 0.40 carat

2 days Left

PLATINUM 0.71CT DIAMOND PENDANT NECKLACE

Est. $900-$3,600

$900

Robinhood AuctionsLas Vegas, NV

Art Deco Platinum Gold Diamond Blue Stone Double Layered Bow Pin: Art Deco Platinum Gold Diamond Blue Stone Double Layered Bow Pin This exquisite Art Deco pin showcases a stunning double layered bow design, meticulously crafted from platinum. The centerpiece feature

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Art Deco Platinum Gold Diamond Blue Stone Double Layered Bow Pin

Est. $3,172-$4,123

$100

Mynt AuctionsNew York, NY

PLATINUM 0.45CT DIAMOND ART DECO RING: A unique design makes this Art Deco ring a veritable work of art. The buckle shaped design beautifully showcases an array of sparkling Diamonds with a total weight of 0.45 carats. Set in Platinum, it

2 days Left

PLATINUM 0.45CT DIAMOND ART DECO RING

Est. $950-$3,800

$950

Robinhood AuctionsLas Vegas, NV

ANTIQUE PLATINUM DIAMOND & SAPPHIRE FLORAL SPRAY PIN.: An antique, platinum (tested), floral spray pin set with approx. 1.0 ct. tw., single cut round and baguette cut, natural diamonds of G-H color and VS-SI clarity and an approx. .20 ct., faceted round,

May 27, 2026

ANTIQUE PLATINUM DIAMOND & SAPPHIRE FLORAL SPRAY PIN.

Est. $500-$800

$250

William Smith AuctionsPlainfield , NH

A PAIR OF PLATINUM AND CULTURED PEARL EARRINGS: A PAIR OF PLATINUM AND CULTURED PEARL EARRINGS Each comprising near-round cultured pearls; measures 1 x 5/8 in. Footnotes: OVERALL CONDITION: Metal stamped and tested with XRF (X-ray fluorescence) for

6 days Left

A PAIR OF PLATINUM AND CULTURED PEARL EARRINGS

Est. $2,500-$3,500

$10

BonhamsLos Angeles, CA

T&Co. Platinum Women's Ring Size 5.5 Made in Italy: T&Co. Platinum Women's Ring Size 5.5 Made in Italy This Tiffany & Co. T&Co. ring is crafted from 950 platinum and features a sleek, minimalist design without any stones. Designed for women, the ring i

1 day Left

T&Co. Platinum Women's Ring Size 5.5 Made in Italy

Est. $1,183-$1,537

$100

BidhausNew York, NY

Antique Art Deco Platinum Engagement Ring GIA 1.32ct Diamond: Antique Art Deco Platinum Engagement Ring GIA 1.32ct Diamond This exquisite Antique Art Deco engagement ring features a stunning 1.32ctw of old cut diamonds set in solid .900 platinum. The centerpiece

6 days Left

Antique Art Deco Platinum Engagement Ring GIA 1.32ct Diamond

Est. $4,862-$6,320

$100

BidhausNew York, NY

Platinum GIA Certified 1.06ct No Heat Pinkish Purple Sapphire Solitaire Ring: Platinum GIA Certified 1.06ct No Heat Pinkish Purple Sapphire Solitaire Ring Presenting a stunning platinum solitaire ring featuring a natural, untreated pinkish-purple sapphire. This exquisite piece,

2 days Left

Platinum GIA Certified 1.06ct No Heat Pinkish Purple Sapphire Solitaire Ring

Est. $3,393-$4,410

$100

Mynt AuctionsNew York, NY

Pt900 Platinum Ring with Sapphire and Diamond US Size 7.75: Pt900 Platinum Ring with Sapphire and Diamond US Size 7.75 This women's ring features a vibrant blue sapphire as the main stone, set in high-purity Pt900 platinum. Designed in a classic style, the rin

2 days Left

Pt900 Platinum Ring with Sapphire and Diamond US Size 7.75

Est. $1,625-$2,112

$100

Mynt AuctionsNew York, NY

Platinum 1.66ctw Pear Emerald and Asscher Diamond Ring: Platinum 1.66ctw Pear Emerald and Asscher Diamond Ring This exquisite cocktail engagement ring features a stunning design crafted in solid platinum, weighing 6.7 grams. The centerpiece is a vibrant gr

3 days Left

Platinum 1.66ctw Pear Emerald and Asscher Diamond Ring

Est. $2,483-$3,227

$100

Mynt AuctionsNew York, NY

18k Yellow Gold Platinum 2.82ctw Ruby Diamond Baguette Ring: 18k Yellow Gold Platinum 2.82ctw Ruby Diamond Baguette Ring This exquisite ring showcases a vibrant combination of natural rubies and diamonds, making it a stunning addition to any jewelry collection.

19 hrs Left

18k Yellow Gold Platinum 2.82ctw Ruby Diamond Baguette Ring

Est. $2,821-$3,667

$100

BidhausNew York, NY

Platinum 4.54ct Pink Tourmaline .42ct Diamond Pendant 5.8 grams: Platinum pendant top featuring an oval-cut pink tourmaline weighing approximately 4.54 carats, surrounded by a halo of round brilliant-cut diamonds totaling approximately 0.42 carats. Constructed in P

May 27, 2026

Platinum 4.54ct Pink Tourmaline .42ct Diamond Pendant 5.8 grams

Est. $10-$100,000

$10

Gallery 63Atlanta, GA

Vintage 14k Gold Platinum GIA 19.47ct Aquamarine Diamond Cocktail Ring: Vintage 14k Gold Platinum GIA 19.47ct Aquamarine Diamond Cocktail Ring This exquisite vintage cocktail ring showcases a stunning 19.47ct oval aquamarine, beautifully complemented by old European cut d

7 days Left

Vintage 14k Gold Platinum GIA 19.47ct Aquamarine Diamond Cocktail Ring

Est. $8,580-$11,154

$100

Mynt AuctionsNew York, NY

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