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Item No: 16821

Vintage Onyx & Diamond 18K Yellow Gold Ring

A striking vintage statement ring featuring a glossy black onyx center in an elongated marquise/navette silhouette, framed by round brilliant diamonds for crisp contrast against warm 18K yellow gold. The bold graphic look reads as Art Deco–inspired and merchandises beautifully as a “little black dress” essential—ideal for customers seeking dramatic evening style, vintage charm, and a strong black-and-white story in your ring case.
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AvailablePurchase or Memo — ready to ship from the MDJ vault.
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Authenticated & Reviewed

In-house review and provenance research before any piece reaches your showroom.

The Details

Specifications & Construction.

Overview

Type
Ring
Period
Vintage
Metal
18KT YG · 4.1 g
Ring Size
6.75
Measurements
20x17

Stone Profile

1 stone · 0.25 cttw

Role Stone Shape Weight Color Clarity
Side #1 Diamond RBC 0.25 ct G
Vintage Onyx & Diamond 18K  Yellow Gold Ring — anatomy card
The Story

Made by hand, when the continental ateliers still set everything by hand.

The kind of piece a serious retailer builds a vitrine around.

The provenance for this piece is recorded against its piece-level documentation file. Approved partners can view full hallmark identification, period-appropriate setting techniques, condition history, and prior-ownership notes alongside the piece.

For the showroom conversation, the short version is the one the case card carries: era, atelier or designer, and what makes the piece worth a vitrine. The long version is for the client who's asking the right questions.

What you get with the piece

Memo, service, and the provenance file.

  1. Memo for Fourteen Days

    Take the piece for two weeks. Show it to your client. Decide afterwards. No fees.

  2. Insured Overnight Both Ways

    Order by 4pm ET. View it on your bench the next morning. Return label included.

  3. Sizing & Service Included

    Complimentary resize, polish, and rhodium-touch on this piece for an approved partner.

  4. Provenance File on Request

    Full authentication paperwork, period photos, and the condition report — to support your sale.