Skip to main content
Go to accessibility notice


    Black Opal, Diamond, Platinum, Gold Ring
    The ring features an oval-shaped black opal cabochon measuring 18.32 x 13.69 x 6.26 mm and weighing approximately 8.00 carats, accented by full-cut diamonds weighing a total of approximately 4.00 carats, set in platinum and 18k gold. A GIA report # 2195046711, dated February 1, 2018, stating Natural Opal, Natural Color, No Indications of Color Treatment, accompanies the opal. Gross weight 18.38 grams.
    Size: 6-1/4 (not easily sized)

    Condition Report*: Diamonds:
    Avg Color: G-H-I
    Avg Clarity: VS
    Shape(s): Full-cut
    Count: 51 - 75

    Colored Gems:

    Certified Gems:
    Gem: 1
    Lab: GIA
    Certification #: 2195046711
    Shape: Double Cabochon
    Treatment: None
    Type: Natural Opal


    Overall Condition: Very Good
    Condition Notes: A stunning surround for an opal with excellent, untreated play-of-color. Ring is completed by a hinged shank with safety clasp. Metal tests as 18k gold and platinum. Opal is slightly loose in setting.

    *Heritage Auctions strongly encourages in-person inspection of items by the bidder. Statements by Heritage regarding the condition of objects are for guidance only and should not be relied upon as statements of fact, and do not constitute a representation, warranty, or assumption of liability by Heritage. All lots offered are sold "AS IS".

    Auction Info

    Auction Dates
    March, 2018
    26th Monday
    Bids + Registered Phone Bidders: 7
    Lot Tracking Activity: N/A
    Page Views: 376

    Buyer's Premium per Lot:
    25% on the first $250,000 (minimum $19), plus 20% of any amount between $250,000 and $2,500,000, plus 12% of any amount over $2,500,000 per lot.

    Sold for: Sign-in or Join (free & quick)

    Heritage membership

    Join Now - It's Free

    1. Past Auction Values (prices, photos, full descriptions, etc.)
    2. Bid online
    3. Free Collector newsletter
    4. Want List with instant e-mail notifications
    5. Reduced auction commissions when you resell your
    Consign now
    • Cash Advances
    • More Bidders
    • Trusted Experts
    • Over 200,000 Satisfied Consignors Since 1976 receives more traffic than any other auction house website. (Source:

    Video tutorial

    Getting the most out of search