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    Gemstone: Sapphire - 2.25 Cts.
    Umba River (Umba Valley)
    Tanga Region

    One of the "Big Three" gemstones, this natural 2.25 carat stone is a coveted Sapphire. This gem has a lovely "royal" blue body color and, when viewed face-up, the stone displays strong violetish-blue and purpleish-violet pleochroism. This stone is thought to be unheated, and the natural inclusions support this observation. There is a wealth of undisturbed mineral crystals and Bohmite needles within the stone that would have been damaged by any heat treatment. There is indeed much to like about this colored gemstone which shows no visible blemishes.
    Measurements: 8.17 x 7.23 x 4.88 mm, 2.25 cts.

    Provenance: The Jena Blue Collection

    Estimate: $2,000 - $3,000.

    Condition Report*: Condition report available upon request.
    *Heritage Auctions strives to provide as much information as possible but encourages in-person inspection by bidders. Statements regarding the condition of objects are only for general guidance and should not be relied upon as complete statements of fact, and do not constitute a representation, warranty or assumption of liability by Heritage. Some condition issues may not be noted in the condition report but are apparent in the provided photos which are considered part of the condition report. Please note that we do not de-frame lots estimated at $1,000 or less and may not be able to provide additional details for lots valued under $500. All lots are sold "AS IS" under the Terms & Conditions of Auction.

    Auction Info

    Bidding Begins Approx.
    18th Monday
    Auction Dates
    9th Monday
    Proxy Bidding Begins Approx.
    31 Days
    Bids + Registered Phone Bidders: N/A
    Lot Tracking Activity: N/A
    Page Views: 217
    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.

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