Opal Gemstones

Buy Natural Opal Gemstones Online

Opal is one of the most unique and visually captivating gemstones, known for its remarkable play of color and wide variety of natural forms. Unlike traditional gemstones, opal is formed from hydrated silica and can display a spectrum of colors depending on its internal structure.

Explore our natural opal gemstone collection or browse individual varieties to find the perfect gemstone for your collection or jewelry.

Opal Gemstone Varieties

Opals occur in several natural varieties, each with distinct characteristics in terms of color, transparency, and optical effects.

Discover different types including boulder opal, rainbow opal, fire opal, opal cats eye, peruvian blue opal, water opal, and yellow opal.

Each variety offers a unique visual appeal, from vibrant play-of-color to soft translucent tones and rare optical effects.

Why Choose Natural Opal?

• Unique play-of-color and visual effects
• Wide range of natural varieties
• Available in multiple colors and transparency levels
• Each stone has a one-of-a-kind appearance
• Suitable for collectors and custom jewelry

Opal Gemstone Properties

Opal is composed of hydrated silica and differs from crystalline gemstones. Its internal structure determines whether it displays play-of-color or a more uniform appearance.

Hardness: 5.5 – 6.5 on the Mohs scale
Refractive Index: Approximately 1.37 – 1.52
Specific Gravity: 1.9 – 2.3

Opal Price and Value

Opal gemstone value depends on type, color play, brightness, pattern, transparency, and size. Stones with strong and vivid play-of-color are generally more valuable.

Rare varieties and well-defined patterns can significantly increase the desirability and value of an opal.

Buy Natural Opal Gemstones Online

When buying opal gemstones, it is important to consider color play, overall appearance, and cutting quality. Each opal is unique, making careful selection essential.

At GemPiece, every opal gemstone is individually photographed and presented with detailed macro video, allowing you to evaluate the gemstone before purchase. Browse our natural opal gemstone collection to find high-quality stones.

Frequently Asked Questions

What is opal?

Opal is a gemstone made of hydrated silica, known for its unique play-of-color and wide variety of appearances.

Is all opal the same?

No, opal occurs in many varieties such as boulder, fire, water, and blue opal, each with distinct characteristics.

What is play-of-color?

Play-of-color is the flashing of multiple colors caused by light interaction within the gemstone.

Where is opal found?

Opals are found in Australia, Ethiopia, Mexico, Peru, and other regions.

Is opal suitable for jewelry?

Yes, opal can be used in jewelry, though it requires careful handling due to its softer nature.

What affects opal value?

Value depends on color play, brightness, pattern, clarity, size, and overall appearance.