THE PREMIER MARKETPLACE FOR REAL OPALS
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      $26.00 USD
      Price
      Closed
      07/03/2022 08:32 pm

      86.20ct Queensland Boulder Yowah / Koroit Opal Rough /Specimen

      2186
      7

      SKU
      Dimensions (mm)
      35.000 x 27.000 x 10.000mm
      Weight (cts)
      86.200
      Type
      Rough
      Colours

                             Constable & Co

                                                                           Australian Opal

      Opal Type

       Boulder Matrix Opal

      Origin

      Yowah / Koroit Region

      Weight:

      86.20ct

      Size:

       35 x 27mm

      Body tone:

       

      Brightness

       


      Treated/Untreated

      Untreated Natural

      Colour

      Blue Green

      Pattern

      Mixed Flashes in Matrix  

      Accuracy of picture

      Accurate

      Base of opal

      Native Ironstone Matrix

      Cabochon

      Specimen / Slab

      Comments:

      A free form shape Queensland Boulder Opal of Yowah / Koroit Matrix Specimen with Mixed flashes of Blue Green for specimen or lapidary rough to cut



      Opal Rough
      Pictures and videos are taken wet to show as close as possible to how the opals will look polished.

      Opal Rough Parcels The total weight and sizes are of the largest piece in the parcel
      When opal arrives and you are not 100% happy you can return for refund. If you alter or cut the rough it is yours and we cannot exchange. Please study the opal rough carefully before cutting. We suggest you look at it dry with a loop before cutting. If you cut or rub any piece you are accepting ownership and negative or neutral feedback cannot be left. 

      For beginners we suggest you purchase potch and colour or rubs to learn the intricacies of Opal cutting and polishing  

      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.

      Queensland 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
      4843 Feedback

      • lucia
        lucia
        Positive

        Beautiful piece, I'm really happy with it

      • lucia
        lucia
        Positive

        Beautiful piece, I'm really happy with it

      • pompey27
        pompey27
        Positive

        Very nice stone , good work. Happy Christmass Pompey

      • pompey27
        pompey27
        Positive

        Hi , thanks you for the beautiful stone. Have a good time and good luck with new stones

      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 : 922923
      Starts : 7th March 2022 05:50 pm PST
      * All prices are in USD