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          $4,000.00 USD
          预计建议零售价:rrp

          161.8 CTS ALEXANDRITE ROUGH TANZANIA COLOUR CHANGE TBM-1123

          3591
          5

          存货单位
          tbm-1123
          尺寸(毫米)
          26.000 x 20.700 x 23.000mm
          重量 (cts)
          161.800
          Treatment
          No Treatment
          Clarity
          N/A
          类型
          Rough
          颜色

          ALEXANDERITE ROUGH
           
          BI-COLOUR

          TANZANIA-MANGHOLA DUMAWANGA DISTRICT ARUSHA REGION

          NICE GREEN CHANGES TO PURPLE

          IDEAL FOR CABBING

          TREATMENT-NONE

          This rare gemstone is named after the Russian tsar Alexander II (1818-1881), the very first crystals having been discovered in April 1834 in the emerald mines near the River in the Urals. The discovery was made on the day the future tsar came of age. Although alexandrite is a relatively young gemstone, it certainly has a noble history. Since it shows both red and green, the principal colours of old Imperial Russia, it inevitably became the national stone of tsarist Russia.

          Alexandrite is very scarce: this is due to its chemical composition. It is basically a chrysoberyl, a mineral consisting of colourless or yellow transparent chrysoberyl, chrysoberyl cat’s eye and colour-changing alexandrite (also in cat’s eye varieties). It differs from other chrysoberyls in that it not only contains iron and titanium, but also chromium as a major impurity. And it is this very element which accounts for the spectacular colour change. Rarely, vanadium may also play a part.
          According to CIBJO nomenclature, only chrysoberyls displaying a distinct change of colour may be termed alexandrite.

          运输商 运送至:国家 运送到世界其他地区
          Standard Shipping - Tracked $20.00 / :几天天 $30.00 / :几天天
          :国家
          Standard Shipping - Tracked折扣至$25.00 ,适用于包含2或更多商品的订单
          世界其他地区
          Standard Shipping - Tracked折扣至$30.00 ,适用于包含2或更多商品的订单
          FedEx $40.00 / :几天天 $40.00 / :几天天
          :国家
          FedEx折扣至$40.00 ,适用于包含2或更多商品的订单
          世界其他地区
          FedEx折扣至$40.00 ,适用于包含2或更多商品的订单
          DHL $30.00 / :几天天 $30.00 / :几天天
          世界其他地区
          DHL折扣至$30.00 ,适用于包含2或更多商品的订单

          trueblueminerals
          trueblueminerals
          rare large gemstones and minerals
          :城市,国家
          已验证
          :总反馈

          • virginiemillefiori
            virginiemillefiori
            消极的

            unfortunately the colors in person under artificial or natural light look nothing like the ones posted on the listing. The stone appears very dark blue and it is hard to guess it is a parti sapphire.

          • peketrain
            peketrain
            积极的

            Very pleased with the specimen and transaction

          • scsamler
            scsamler
            积极的

            This stone made me fall in love with Padparadsha sapphire. Truly wonderful!

          20%
          优惠券代码 love
          有效期至
          28th Feb 2025

          审计

          该产品已通过Gemstone Sheriff审核,并发现以下问题:
          • 描述准确
          • 图片准确

          Comments

          The Verified Seller responsible for this item has diligently provided us with accurate and comprehensive information, encompassing crucial details such as weight, dimensions, and treatment. It is important to reiterate our commitment to upholding the highest standards of integrity and transparency in the gemstone industry. As part of our policy, we strictly permit the sale of exclusively natural gemstones that have been sourced directly from the Earth. However, in the event that a gemstone has undergone any form of treatment, it is mandatory for the seller to provide full disclosure regarding the treatment process. Furthermore, we would like to emphasize that man-made gemstones, including simulants and imitations, are strictly prohibited on our platform. We prioritize the promotion of authentic, natural gemstones to ensure a genuine and trustworthy marketplace for our valued customers. Should you have any further inquiries or require additional assistance, please do not hesitate to reach out. We are here to assist you and provide a seamless experience on Gem Rock Auctions.

          请求进行此审核:日期
          最后更新:日期

          送货细节

          船运:
          $30.00 14通过Standard Shipping - Tracked计数天数
          发货自:
          Australia

          付款方式

          • stripe

          概述

          列表类型 : Standard
          产品编号 : 1876979
          开始 : 13th February 2025 03:04 pm PST
          * 所有价格均以:货币为单位

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