The World's Only Opal Pricing System.
Built on 16 Factors. Trusted by Professionals.
For the first time in history, Australian opal has a standardised, science-backed valuation tool - giving miners, cutters, jewellers, and collectors a precise retail and wholesale price for every gemstone.
“An opal is worth what someone will pay for it.“
That saying has defined the opal industry for generations, not because it’s true, but because nothing better existed. Unlike diamonds, which have a globally accepted grading standard, opal has always been priced by gut feel, experience, and negotiation. The result? Buyers Overpay, Sellers Undersell, and the industry loses credibility with every inconsistent transaction.
Introducing the OzOpal Pricing Tool
Developed by Phil Veneris – opal cutter, trader, and industry expert with over 25 years of hands-on experience – the OzOpal Pricing Tool is the most comprehensive opal valuation system ever created.
It works the way a diamond grader works: a structured, repeatable, multi-variable framework that removes guesswork and replaces it with precision.
Simply work through 16 carefully developed selection criteria, and the tool instantly calculates:
1
. Carat price ($/ct)
The per-carat value of your stone
2
. Total retail price
Based on the weight you enter
3
. Total wholesale price
For trade and commercial use
4
. Full valuation summary
A record of every selection made
Fully web-based. No downloads. No installation. Log in and start pricing within minutes. Whether you're at the mine, in the workshop, or at the counter.
A World First. And the Only One.
There is no other tool like this anywhere in the world.
Traditional opal valuation relies on a handful of informal grading factors passed down through the trade. The OzOpal Pricing Tool stands apart with its original 16-factor algorithm, integrating colour science, geological context, visual grading behaviour, and practical market benchmarking into a single, consistent system.
It has been cross-referenced against globally respected gemological references, NSW Government Opal Classification Guidelines, and decades of real buyer and seller data collected exclusively by OzOpals across Australian and international markets.
The result is an unmatched level of precision, clarity, and transparency – whether you’re buying, cutting, selling, or appraising.
When you use the OzOpal Pricing Tool, you're not just appraising a gemstone. You're leading the market.
16
Valuation factors
in the algorithm
20+
Years of original
market data
v.17
Constant updates
since 2016
Built for Everyone in the Opal Industry
Whether you work with opal professionally or simply love collecting it, the OzOpal Pricing Tool gives you the confidence to know what every gemstone is truly worth.
- Wholesalers – Standardise your buying and selling benchmarks.
- Miners – Know what you’ve dug before you sell it.
- Opal Cutters – Price each stone the moment it’s finished.
- Collectors & Enthusiasts – Finally know what your collection is actually worth.
- Retailers – Set consistent, defensible prices across your range.
- Jewellers – Value opal inclusions and loose stones with precision.
What the Industry Says
Built by Someone Who Has Lived It
The OzOpal Pricing Tool wasn’t built in a boardroom. It was built in the field, across opal mines, cutting workshops, trading floors, and jewellery counters spanning more than 20 years. Phil Veneris, founder of OzOpals, has spent his career cutting, trading, and valuing Australian opal. He knows the industry’s frustrations intimately, because he experienced them firsthand. The OzOpal Pricing Tool began as his own solution to his own problem, and has since been refined through 16 revisions, countless field tests, and feedback from professionals around the world.
It is but built from scratch through years of grading logs, sales data, and gemological study.
“All great ideas were sparked by a single thought from a single human in a single moment.” – Phil Veneris