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Stories

Valueing Opal
Classification and GradingJun 1, 2020
How to value opal?

Being asked to value opal for someone is a daily occurrence. Opal is a notoriously hard gem to value because there are no specific rules you can apply to every opal. The drawing card of opal is the...

Opal Myths Busted
Classification and GradingMar 23, 2020
Opal myths busted!

While I love a quirky tale as much as the next person, opal myths can start to sound like facts if repeated often enough. I’ve gotten consistent emails for years now questioning an opals strength; ...

Smash a Gemstone
Classification and GradingJan 27, 2020
Smashing gemstones with a mallet!

As a kid, I thought that diamonds were the hardest thing in the world. Having the typical tyrannical tendencies that young boys have, all I wanted to do was smash one. Now I’m an adult and quite fr...

What is Black Crystal Opal?
Classification and GradingJun 19, 2019
What is Black Crystal Opal?

Black crystal opal is a rare and captivating variety of opal known for its translucent body tone and rich play-of-colour. While similar to black opal in appearance, black crystal opal allows light ...

What is Play of Color in a Gemstone?
Classification and GradingJun 4, 2019
What is Play of Color in a Gemstone?

What exactly is play of color? Is it unique to opal—and how can you tell? This week, Justin dives into what play of color means across different gemstones, and why opal’s version is truly one of a ...

Color vs Bodytone
Classification and GradingMay 14, 2019
Why name opal by their body tone when they have color?!

Justin’s back this week and he’s got something on his mind… welcome to the opal color rant. In the early days of opals discovery, when someone stumbled across a gorgeous gem that resembled a rainb...

Unique Features of Nobby Opal
Classification and GradingMar 18, 2019
Three unique features of nobby rough opal from Lightning Ridge

I’ve been cutting some new nobby rough opal from Lightning Ridge. I thought it be good to share some of the unique features of these type of formations. I’ve selected an example to work on in the i...

Asteria Pattern
Classification and GradingAug 21, 2018
Opals Nucleus: Asteria Pattern

Sometimes the universe reveals itself in the most unexpected places. This opal holds a tiny nucleus at its base, radiating outward like the moment of creation—the Big Bang. The imagery this opal...

The World's Rarest Opal
Classification and GradingAug 4, 2017
World's rarest opal video: Part 2

The rough and unpolished gem weighs a massive 568.69 carats and measures 95 x 59 x 25 mm. For more on the origin and story visit the Part 1 post. Next week, we will reveal the equally amazing stor...