Rings

Vintage Estate Diamond Ring in 18k Yellow and White Gold

This piece caught my attention for the relative rarity of its mixed-metal execution - the pairing of 18k yellow and white gold within a single setting is a deliberate ...

$3,500
Excellent conditionOne of one
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Seller 100.0% positive · 417 sales

Wear it to

The story

Why we picked it
This piece caught my attention for the relative rarity of its mixed-metal execution - the pairing of 18k yellow and white gold within a single setting is a deliberate design choice that speaks to a particular moment in fine jewelry craftsmanship, not a later modification. The single-owner provenance and 750 hallmark give me confidence in its integrity, and at 6.88 grams it carries a presence on the hand that lighter, modern pieces rarely match. It is the kind of ring that arrives already carrying a history worth inheriting.

Timeless 0.65 Carat Diamond in Mixed-Metal 18k Setting

Classic elegance with verified provenance this authentic vintage estate diamond ring features an approximately 0.65 carat diamond beautifully set in sophisticated mixed-metal 18k yellow and white gold. Lovingly maintained by one owner, this pre-owned estate piece is hallmarked 750 and weighs a substantial 6.88 grams.

The warm yellow gold and bright white gold combination creates dimensional depth and versatility with timeless appeal. Perfect for everyday elegance or special occasions, an heirloom-quality piece destined to be cherished across generations. A refined find for vintage estate jewelry collectors seeking authenticated pieces with romantic provenance.

Key Features & Details

  • Vintage estate diamond ring in excellent condition

  • Approximately 0.65 carat diamond

  • 18k yellow and white gold mixed-metal setting

  • Hallmarked 750 (18k gold standard)

  • Total weight: 6.88 grams

  • One owner, carefully maintained throughout its history

Why You'll Love It

  • Timeless elegance with heirloom-quality craftsmanship built to last generations

  • Sophisticated mixed-metal design offers versatility for any occasion

  • Substantial 6.88 gram weight provides luxurious presence and balanced wear

  • Single-owner provenance ensures careful preservation and authenticated estate history

  • Classic 0.65 carat diamond delivers enduring brilliance and romantic appeal

Condition & Disclaimer

This is a pre-owned vintage item sourced from a trusted third-party seller. Foundry was not the original purchaser. Items are sold as found and may show minor signs of wear consistent with age, adding to their vintage character. Pricing, shipping, and returns are managed by the original seller. This site may earn a commission from purchases made through third-party links.

Measurements & condition
Condition
Excellent · 3.5/5
Fit
Mixed-metal solitaire setting
Piece
Estate diamond ring

Vintage sizing runs differently from today's. Check the exact measurements and photos on the eBay listing before you buy, and message the seller with any questions.

How buying through Foundry works
  1. We find it. Every piece is hand-picked from trusted resale sellers around the world.
  2. You buy it from the seller. The button takes you to the original listing, where you check out with the seller's own buyer protection. No extra fees from us.
  3. They ship it to you. Shipping, returns and questions go through the seller. We may earn a small commission, at no cost to you.

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Questions? we got you covered.

Does Foundry sell these items directly?

No. Foundry does not sell or ship products. All items are sold by independent third-party sellers, and transactions are completed on their original platforms.

Are all items authentic?

Foundry curates vintage and pre-owned items sourced from established resale platforms and sellers. While we carefully review listings before featuring them, authenticity is ultimately verified and guaranteed by the platform or seller where the purchase is completed.

We do not sell replicas or knowingly feature counterfeit items.

Are items one-of-a-kind?

Yes. All pieces on Foundry are unique, one-of-a-kind finds. Once an item is sold, it will not be restocked.

Why do I purchase through a third party?

Foundry operates as a curated marketplace and discovery platform. Purchases are completed through trusted third-party platforms like eBay to ensure secure checkout, buyer protection, and accurate real-time inventory.

When you click “Buy on X,” you’ll be redirected to complete your purchase directly on the listing.

Can I return or exchange an item?

Returns and exchanges are subject to the policies of the platform where the purchase is completed. Please review the return details listed on the product page before purchasing.

What condition are the items in?

All items are vintage or pre-owned and may show natural signs of wear consistent with age. We do our best to note any significant flaws or imperfections in each product description.

We believe these details are part of what makes vintage special.

How often do you release new items?

New pieces are added regularly as they’re sourced. Because inventory is limited and one-of-a-kind, availability changes often.

How can I stay updated?

You can stay up to date by subscribing to our email list or following Foundry on social media for new arrivals and curated drops.

WHY VINTAGE?

It Already Exists

Vintage isn’t “produced” it’s rediscovered.
Choosing vintage reduces waste, overproduction, and the environmental cost of creating something new.

Quality You Can Feel

Most vintage was made with heavier fabrics, real hardware, and craftsmanship that’s rare today.
It’s why these pieces last decades, not seasons.

Style With a Story

Vintage means no mass drops, no repeats, no algorithms deciding what you wear.
Each piece is one-of-a-kind which is why it is so special.