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      $125.00 USD
      Price

      3.89ct Australian Boulder Opal Stone

      1799
      11

      SKU
      Dimensions (mm)
      14.000 x 7.000 x 3.000mm
      Weight (cts)
      3.890
      Type
      Carved, Polished
      Shape
      Freeform, Oval
      Colours

                            Constable & Co

                             Australian Opal

      Opal Type: Australian Boulder Opal 

      Origin: Winton Region

      Treated/Untreated:

      Untreated 

      Colour:

       Bright Multi - Colour Green Blue

      Pattern:

       Mixed Flashes

      Accuracy of picture:

       Accurate 

      Base of opal:

      Solid Native Ironstone 

      Cabochon:

      Low

      Comments:   A free form shape Australian Boulder Opal stone with mixed flashes in bands of  bright multi-colour green blue on a slightly carved face on a solid native ironstone base. 

      Please make payment within 48 hours or contact us and make alternative arrangements 

      Opal valuation: Our Opal Valuations are a combination of experience gathered over 35+ years in all levels and operations within the opal industry and the internationally recognized Opal Nomenclature and Classification 

      Photographing opals: We endeavour at all times to take the most true to life pictures possible. However, cameras often pick up colours and light differently and variations may occur. Because every opal photographs differently, I also include in the description additional comments about the accuracy of the photos. 

      Our Guarantee:  We sell quality opal and customer satisfaction is important to us so for any reason you are not completely happy with your purchase please advise us within 7 days of you receiving it. Return the items 100% complete with all packaging and any extras. Refund will be given as soon as the items are confirmed in original condition. We strongly recommend that you fully insure the return shipment in case of loss or damage and use a carrier that can provide proof of delivery.  

       About Constable & Co Australian Opal & Pearl Specialists  The company origins as Colonial Opal and Colonial South Sea Pearl trading in Opal, Pearl and Precious Gems date from the early 1980s experience gathered in all levels and operations within the Opal Industry starting in the Wholesale and Export Gemstone and Jewellery trade within Australia and Internationally then Owning and Operating Opal Specialist Stores in Australia and New Zealand all the while being involved in the Mining, Cutting and Valuing all varieties of Australian Opal and recently with Sons and Daughter joining the company ensuring a continued expertise in the industry.  

      Lightning Ridge Opal: Mined in the Outback of New South Wales Australia Black Opal comes from and variety of mining areas around Lightning Ridge  

      Black Opal refers to the underlying colour – the colour of the opal when you turn it over. The darker the body the more valuable to stone may be. It is this darkness that lends brightness to the other colours displayed with in the stone. Black and dark opal is the scarcest of all opal and comes from the mines of Lightning Ridge.

      Australian Boulder Opal: Mined in the Outback of Queensland Australia our Opal comes from and variety of mining districts including - Winton, Koroit, Yowah, Eromanga, Jundah and Quilpie

      Boulder opal is a type of opal that forms within the cavities of ironstone boulders dating from the time when central Queensland was cover by an inland sea The Opal is found in both vertical and horizontal cracks or seams. It is cut with the ironstone remaining on the back and is classified as solid opal.

      Boulder Opal occurs over a Vast area of Western Queensland from North of Winton to south of Quilpie. Boulder Opal is considered to be one of the most versatile opals because it has all of the colour and patterns of expensive black or crystals opals but it is contained within the iron stone which makes it extremely durable.

      When looked at from the side you can always tell a genuine solid boulder opal by the natural uneven line where the opal filled the void in the boulder.

       

      White Opal: is also known as milky Opal and it has a pale white appearance with bright flashes of Opal colour. On the body tone and brightness chart the body colour of white Opal is N8 or N9. White Opal is capable of displaying any combination of spectral colours such as red, blue, purple and greens. 

      The major difference between this type of Opal and the Black Opal is that white Opal tends to have a subdued play of colour since the body colour of the stone is light. In black Opal because the body is very dark the play of colour is much brighter. 

      In terms of production the white Opal is by far the most plentiful. In Australia the majority of the opal produced comes from South Australia. There are three main South Australian opal mining fields these are Coober Pedy, Andamooka and Mintabie



      Shipping provider Shipping to Australia Shipping to rest of world
      Standard Shipping - Tracked $8.00 / 7 days $17.00 / 24 days
      Australia
      Standard Shipping - Tracked is discounted to $8.00 on orders with 2 or more items
      Rest of the world
      Standard Shipping - Tracked is discounted to $20.00 on orders with 2 or more items
      DHL $25.00 / 4 days $60.00 / 10 days
      Australia
      DHL is discounted to $25.00 on orders with 2 or more items
      Rest of the world
      DHL is discounted to $60.00 on orders with 2 or more items
      Express Shipping $12.00 / 4 days $30.00 / 16 days
      Australia
      Express Shipping is discounted to $12.00 on orders with 2 or more items
      Rest of the world
      Express Shipping is discounted to $30.00 on orders with 2 or more items
      Registered Shipping $8.00 / 7 days $15.00 / 28 days
      Australia
      Registered Shipping is discounted to $8.00 on orders with 2 or more items
      Rest of the world
      Registered Shipping is discounted to $17.00 on orders with 2 or more items

      constableandcoopal
      constableandcoopal
      Constable and Co- Australian Opal specialists in the Opal and Gem industry since 1980s
      Woodford, Australia
      Verified
      4873 Feedback

      • archibaldcunningham
        archibaldcunningham
        Positive

        Excellent customer service! Item exactly as pictured! A lovely stone! Thank you.

      • nikosboss
        nikosboss
        Positive

        A++ Seller has excellent prices on beautiful Boulder opal which is even more impressive in hand. Very happy with my purchases, will be back again.

      • nikosboss
        nikosboss
        Positive

        Seller is very easy to work with quick response, great prices on killer boulder opals, very fast and secure shipping. Definitely will be back for more opals from this wonderful seller. A++

      • lucia
        lucia
        Positive

        Beautiful piece, I'm really happy with it

      • lucia
        lucia
        Positive

        Beautiful piece, I'm really happy with it

      Audit

      The Opal Sheriff program allows our members to request an audit on any product, which is completed by an independent Gemologist who assesses the accuracy of the item description and pictures.

      Shipping Details

      Shipping:
      $17.00 24 days via Standard Shipping - Tracked
      Ships from:
      Australia

      Payment Options

      • paypal
      • stripe
      This seller adds 10.00% tax to transactions in Australia.

      Overview

      Listing Type : Standard
      Product ID : 1287682
      Starts : 11th February 2025 07:08 pm PST
      * All prices are in USD