Calibrated Australian Opal Stones
Calibrated Australian opal stones are cut and polished to exact, standardized dimensions to fit standard commercial jewelry mounts seamlessly. Sourced primarily from the light crystal fields of Coober Pedy, these stones save jewelry designers significant time and custom metalwork costs. Every calibrated opal is guaranteed natural and solid.
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High Precision Cutting for Efficient Jewelry Workflows
For jewelry designers, custom manufacturers, and boutique brands, calibrated opals are highly essential for maintaining efficient workflows. Traditionally, opals are cut into freeform shapes to preserve maximum carat weight from the raw rough. However, setting freeform stones requires handcrafting custom, individual metal settings, which increases production costs.
We highly recommend reviewing our calibrated Australian opals guide to understand the sizing tiers and layouts. Calibrated opals solve this by offering stones cut to precise, standardized measurements, such as 6x4mm, 8x6mm, or 10x8mm ovals. This consistency allows jewelers to utilize pre made commercial castings, ensuring a perfect fit without the need for expensive custom lapidary work. Our calibrated stones are cut from premium South Australian crystal and white opal rough, delivering exceptional play of color and natural beauty.
Frequently Asked Questions
What is a calibrated opal?
It is an opal cut to precise, standardized measurements to fit standard jewelry castings.
Are calibrated opals lower quality?
No, calibrated stones are crafted in various grades from standard to premium gem quality.
What sizes do calibrated crystal opals come in?
They commonly come in oval sizes of 6x4mm, 8x6mm, and 10x8mm, and rounds from 4mm to 8mm.