Workshop - Valuation Certificate

Workshop - Valuation Certificate

SKU: Workshop - Valuation Certificate

Regular price
$75.00
Sale price
$75.00
Regular price
$150.00
Sold out
Unit price
per 

The type, colour, size and soundness of precious opal are factors that determine the price paid for the gemstone. The price is based on the quality of the opal and expressed per carat. Furthermore, there is a marked difference between the value of uncut opal compared with the value of cut and polished opal. Categories such as the variety, background, transparency, spectrum, tone, origin, distribution, inclusions, carat weight etc all add to determining the correct value of the opal itself.

The clarity of the colour is critical when assessing the value of opal. Red fire is the rarest colour, followed by green/orange, green/blue and blue. Therefore red fire opal is generally more valuable than a predominantly green opal, which in turn is more valuable than a stone showing only blue colour.

However, brilliance and clarity of an open proportioned pattern are the main decision makers – a brilliant blue/green can cost more than a dull red; bright twinkling stars of a ‘pin fire’ pattern can cost more than a cloudy open pattern of similar colouration; or a brilliant, lustrous light opal can cost more than a lacklustre black opal.

Australian Opal Cutters Valuation Certificates provide industry leading analysis of the 14 characteristics of your Opal 

The 14 characteristics include: Variety, Body Tone, Brightness, Transparency, Colour, Hue, Outline, Profile, Origin, Pattern, Display, Distribution and Inclusions,                                

                 

 

More from this collection

  • Postage - Australia Post Postage
    Regular price
    $15.00
    Sale price
    $15.00
    Regular price
    Unit price
    per 
    Sold out
  • Opal s - The Beautiful Gem Of Passion
    Regular price
    $27.00
    Sale price
    $27.00
    Regular price
    $30.00
    Unit price
    per 
    Sold out
  • A Beautiful Souvenir of Lightning Ridge And Its Magnificent Opal
    Regular price
    $27.00
    Sale price
    $27.00
    Regular price
    $30.00
    Unit price
    per 
    Sold out
  • Beautiful Australian Opal s
    Regular price
    $27.00
    Sale price
    $27.00
    Regular price
    $30.00
    Unit price
    per 
    Sold out
  • Sapphires In New South Wales
    Regular price
    $27.00
    Sale price
    $27.00
    Regular price
    $30.00
    Unit price
    per 
    Sold out
  • Sapphires In New South Wales - Brochure
    Regular price
    $27.00
    Sale price
    $27.00
    Regular price
    $30.00
    Unit price
    per 
    Sold out
  • Australian Opal Cutters - Garray Collection
    Regular price
    $27.00
    Sale price
    $27.00
    Regular price
    $30.00
    Unit price
    per 
    Sold out
  • Australian Opal Cutters - Opal Collection
    Regular price
    $27.00
    Sale price
    $27.00
    Regular price
    $30.00
    Unit price
    per 
    Sold out
  • Australian Opal Cutters - Gem Cutters since 1947
    Regular price
    $27.00
    Sale price
    $27.00
    Regular price
    $30.00
    Unit price
    per 
    Sold out
  • Postage - International Australia Post
    Regular price
    $30.00
    Sale price
    $30.00
    Regular price
    Unit price
    per 
    Sold out
  • Australian Opal s & Gemstones - Natures Own Fireworks
    Regular price
    $36.00
    Sale price
    $36.00
    Regular price
    $40.00
    Unit price
    per 
    Sold out
  • Coated South Sea Pearl 8mm set with a Rhodium Plated Clasp Earrings
    Regular price
    $45.00
    Sale price
    $45.00
    Regular price
    $50.00
    Unit price
    per 
    Sold out
  • Coated Australian South Sea Pearl 8mm Earrings set in Stainless Steel
    Regular price
    $45.00
    Sale price
    $45.00
    Regular price
    $50.00
    Unit price
    per 
    Sold out
  • Pure Pearl Bracelet set in 925 Sterling Silver
    Regular price
    $49.50
    Sale price
    $49.50
    Regular price
    $99.00
    Unit price
    per 
    Sold out
  • Pure Pearl Bracelet set in 925 Sterling Silver
    Regular price
    $49.99
    Sale price
    $49.99
    Regular price
    $99.00
    Unit price
    per 
    Sold out
  • Pure Pearl Pendant set in 925 Sterling Silver 11mm
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    $99.00
    Unit price
    per 
    Sold out
  • Pure Pearl Bracelet set in 925 Sterling Silver
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    $99.00
    Unit price
    per 
    Sold out
  • Pure Pearl Bracelet with St Silver Clasp
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    $99.00
    Unit price
    per 
    Sold out
  • Coated South Sea Pearl 8mm Earrings set with a Rhodium Plated
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    Unit price
    per 
    Sold out
  • Pure Pearl Pendant set in 925 Sterling Silver 11mm
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    $99.00
    Unit price
    per 
    Sold out
  • CHRISTIANITY WORKS PEARL GIFT
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    $99.00
    Unit price
    per 
    Sold out
  • Australian Black Opal 0.76 Carats Earrings set in 925 Sterling Silver
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    $100.00
    Unit price
    per 
    Sold out
  • Australian Black Opal 0.76 Carats Earrings set in 925 Sterling Silver
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    $100.00
    Unit price
    per 
    Sold out
  • Workshop - Resize Ring
    Regular price
    $50.00
    Sale price
    $50.00
    Regular price
    $120.00
    Unit price
    per 
    Sold out
  • ST Silver Pure Freshwater Pearl Pearl Pendant
    Regular price
    $54.00
    Sale price
    $54.00
    Regular price
    $60.00
    Unit price
    per 
    Sold out
  • ST Silver Pure Freshwater Pearl Pearl Pendant
    Regular price
    $54.00
    Sale price
    $54.00
    Regular price
    $60.00
    Unit price
    per 
    Sold out
  • Australian Dark Opal 2.17 Carats Loose (Un - Set) Gemstone 10x8x5mm
    Regular price
    $55.00
    Sale price
    $55.00
    Regular price
    $110.00
    Unit price
    per 
    Sold out
  • A Genuine Natural Australian Dark Opal ready to set in Jewelry
    Regular price
    $60.00
    Sale price
    $60.00
    Regular price
    $82.00
    Unit price
    per 
    Sold out
  • A Genuine Natural Australian Dark Opal ready to set in Jewelry
    Regular price
    $60.00
    Sale price
    $60.00
    Regular price
    $80.00
    Unit price
    per 
    Sold out
  • A Genuine Natural Australian Dark Opal ready to set in Jewelry
    Regular price
    $60.00
    Sale price
    $60.00
    Regular price
    $84.00
    Unit price
    per 
    Sold out