Calibrated Amethyst Gemstones

Precision-Sized Calibrated Amethyst Stones

Our calibrated amethyst gemstones are cut to exact measurements for easy mounting in standard jewelry settings, ensuring consistency across matched designs.

Loose Calibrated Amethyst Online

Browse a wide selection of loose calibrated amethyst stones in popular sizes such as 6 mm, 8 x 6 mm, 10 x 8 mm and more. Each gemstone is photographed individually for accurate online selection.

Standard Sizes for Jewelry Settings

Calibrated amethyst is ideal for ready-made ring mounts, earring settings and pendant designs. Uniform dimensions allow jewelers to work efficiently without custom adjustments.

Faceted and Cabochon Options

Choose from faceted calibrated amethyst for brilliance and sparkle, or smooth cabochons for modern and classic jewelry styles. Available in round, oval, cushion, pear and other popular shapes.

Natural Purple Amethyst

All our calibrated amethyst stones are natural quartz, known for their attractive purple color and good durability (Mohs hardness 7), suitable for everyday jewelry.

Wholesale Calibrated Amethyst

We offer competitive pricing for jewelers and designers who require multiple stones in matching sizes. Calibrated cuts are perfect for production jewelry and repeat designs.

February Birthstone

Amethyst is the traditional February birthstone and is often chosen for meaningful gifts, anniversary jewelry and custom creations.

Why Choose Calibrated Amethyst?

Calibrated stones provide reliable sizing, reduced setting time and consistent results, making them a preferred choice for professional jewelers and custom designers.

Learn more about origins, treatments and care on our Amethyst Information Page.