Technical Opal Information

Australian Boulder Opal Rough Chart

Australian Boulder Opal Rough Chart

Australian Boulder Opal Rough Chart
  • 7th May 2018
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Black Opal Brightness and Body Tone Guide

Black Opal Brightness and Body Tone Guide

The Opal Body Tone Guide was designed and created by the Opal Association of Australia and was meant to be a guide for Black Opal and Boulder Opals. The Opal industry has recently also been using this guide for many Opal types including Ethiopian
  • 8th May 2018
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  • 4
Conversion Chart for Ring Sizes

Conversion Chart for Ring Sizes

Conversion Chart for Ring Sizes
  • 8th May 2018
  • 7
Ethiopian Opals Grading And Patterns

Ethiopian Opals Grading And Patterns

We created a guide to all of the Ethiopian opals patterns and grading factors to help buyers with selecting the best possible opal for the price. It outlines the key features of this type opal.
  • 8th May 2018
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Glossary Of Opal Terms

Glossary Of Opal Terms

When it comes to talking about Opals there are some terms that might seem a bit strange. Ratters, Nobbys and Tailings are all part of the vocabulary of Opal.
  • 15th Feb 2018
  • 5
How Does The Back Of An Opal And Its Cut Determine The Value Of An Opal?

How Does The Back Of An Opal And Its Cut Determine The Value Of An Opal?

One of the most important questions we get asked is how the backing of an Opal affects the value. We will take you through a step by step guide on what to look for.
  • 7th May 2018
  • 8
Monarch Opal - A New Man Made Synthetic Opal

Monarch Opal - A New Man Made Synthetic Opal

Monarch Opal or Sterling Opal is a new type of synthetic Opal created by the same person that created the Zachery process for Turquoise. Lean about this Opals unique appearance and detection
  • 8th May 2018
  • 4
Opal Patterns - The Ultimate Guide

Opal Patterns - The Ultimate Guide

The Opal has so many patterns that it is impossible to find two Opals that look the same. Check out our guide on all of the patterns that Opal can be found in
  • 7th May 2018
  • 5
What is a Black Crystal Opal?

What is a Black Crystal Opal?

A Black Crystal Opal is a unique and beautiful variation of a Black Opal. Black crystal opal is scarce and so unique.
  • 28th Mar 2018
  • 1
What is a Harlequin Pattern Opal?

What is a Harlequin Pattern Opal?

A Harlequin Opal is the rarest opal in the world. We will explain what is needed in a stone in order for it to be classified as a true Harlequin Opal an we will show some of the examples we have for sale.
  • 8th May 2018
  • 10
What is Synthetic Opal?

What is Synthetic Opal?

Synthetic Opal is a man made version of natural Opal. It has the exact same physical and chemical properties of natural Opal
  • 7th May 2018
  • 3