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Item No: 16990

Estate Italian Diamond and Onyx Classy 18K White & Yellow Necklace

Estate Italian collar-style necklace with a sculptural, high-impact silhouette: carved onyx segments punctuated by diamond pavé stations, finished with a bold front motif that highlights two prominent round brilliant diamonds. Crafted in 18K white and yellow gold and dated to 1980s vintage, it presents as a polished, editorial statement piece ideal for high-jewelry clients seeking strong design and unmistakable presence—excellent for showcase merchandising, event dressing stories, and elevated gift positioning.
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Authenticated & Reviewed

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

The Details

Specifications & Construction.

Overview

Brand
Italian
Type
Necklace
Period
1980's Vintage
Metal
18K White/Yellow Gold · 221.8 g
Measurements
16"

Stone Profile

3 stones · 27.5 cttw

Role Stone Shape Weight Color Clarity
Side #1 Diamond Round Brilliant Cut 4.0 ct G-H VS1-VS2
Side #2 Diamond Round Brilliant Cut 23.5 ct F-G VVS1-VS1
Side #3 Carved Onyx
Estate Italian Diamond and Onyx Classy 18K White & Yellow Necklace — 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.