Skip to main content
Go to accessibility notice


    Paraiba-Type Tourmaline, Pink Sapphire, Diamond, White Gold Pendant-Necklace, Silverhorn
    The pendant features an oval-shaped tourmaline measuring 21.73 x 19.18 x 11.07 mm and weighing 28.56 carats, enhanced by a pink sapphire measuring 7.01 x 6.94 x 4.03 mm and weighing 1.84 carats, accented by full-cut diamonds weighing a total of approximately 0.35 carat, set in 18k white gold, maker's mark for Silverhorn, suspended by a six-strand 18k white gold chain. An AGL report # 1096038, dated November 6, 2018, stating Natural Tourmaline, Paraiba-Type, Origin Mozambique, Grayish Violetish Blue color, Natural Color, No Clarity Enhancement, accompanies the tourmaline. An AGL report # 1096037, dated November 6, 2018, stating Natural Corundum, Pink Sapphire, Origin Madagascar, Purplish Pink color, Low temperature heating, No clarity enhancement, accompanies the sapphire. Gross weight 23.70 grams.
    Pendant Dimensions: 1-1/4 inches x 13/16 inch
    Chain Length: 18 inches

    Estimate: $10,000 - $15,000.

    Condition Report*: Diamonds:
    Avg Color: G-H-I
    Avg Clarity: VS
    Shape(s): Full-cut
    Count: 76 - 100

    Colored Gems:

    Certified Gems:
    Gem: 1
    Lab: AGL
    Certification #: 1096038
    Carat: 28.56
    Shape: Oval
    Origin: Mozambique
    Treatment: No Clarity Enhancement
    Type: Natural Tourmaline

    Gem: 2
    Lab: AGL
    Certification #: 1096037
    Carat: 1.84
    Shape: Cushion
    Origin: Madagascar
    Treatment: Low temperature heating
    Type: Natural Corundum

    Gem: 3
    Lab: GIA
    Certification #: 6193625617
    Shape: Cushion
    Type: Tourmaline


    Overall Condition: Very Good
    Condition Notes: A captivating and dazzling display of color and allure. The pendant has a maker's mark for Silverhorn, 18K. Chain marked 750. The tourmaline has some surface reaching inclusions. A GIA report # 6193625617, dated September 12, 2018, stating Tourmaline, Violetish Blue color, accompanies the tourmaline.
    Silverhorn: Michael and Carole Ridding established Silverhorn in 1976 in the Canadian Rockies, where the name was acquired from the Silverhorn Mountain. In 1986 they expanded and moved their business to Montecito, CA. They specialize in custom designs using rare gemstones that Michael finds as a gem collector. He claims the gems must stand out in clarity and rarity. The designs are then carried out by a team of award winning designers and goldsmiths to create remarkable and distinct pieces.

    *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".

    Sales Tax information

    Important information concerning Sales Tax and Resale Certificates. Learn More

    Terms and Conditions

    Bidding Guidelines and Bid Increments

    Glossary of Terms

    Auction Info

    Bidding Begins Approx.
    29th Friday
    Auction Dates
    29th Monday
    Proxy Bidding Begins Approx.
    9 Days
    Bids + Registered Phone Bidders: N/A
    Lot Tracking Activity: N/A
    Page Views: 68
    Auction Type
    Signature®:  Heritage Live®:After Internet bidding closes, live bidding will take place through Your secret maximum bid placed prior to the live event will compete against the live bids. To maximize your chances of winning, enter realistic secret maximum bids on our site. Many of our proxy bidders are successful at winning lots in these auctions, and usually below their secret maximum. You can also place last minute bids directly with us by e-mailing or calling 1-866-835-3243. (Important note: Due to software and Internet latency, live bids may not register in time, so enter realistic proxy bids.)

    Signature® Floor Sessions
    Proxy bidding ends ten minutes prior to the session start time. Live Proxy bidding on Heritage Live starts 24 hours before the live session begins and continues through the session. During the live auction event, bidding in person is encouraged, and Heritage Live includes streaming audio and often video during the event.

    Track Item