Crystal opal is a variety of the mineraloid opal defined by being semi-transparent to fully transparent. Many crystal opals are fully clear in body color, but technically any color opal can be a “crystal opal” if transparent enough.

You’ll see crystal opals with varying degrees of play-of-color, but crystal opal prices are higher for strong play-of-color. Though opals aren’t actually crystalline, crystal opals are still unique in bringing out vibrant body colors against a lucid background. Some examples are crystal fire opal and black crystal opal.

FAQs

What is crystal opal?

Crystal opal is any opal that’s semi-transparent to transparent. Some gemologists add that crystal opals must have a colorless body tone, but most use the term for any opal color with high transparency.

What makes crystal opal different from other types of opal?

Most opals are semi-translucent to opaque, whereas crystal opals are defined by their high transparency. Many opal varieties are also defined by their background color, but crystal opals can be virtually any color. Plus, crystal opals always have some degree of color-play, while common opals don’t.

Where can crystal opal be found?

Crystal opal is found in the same places as most opals — mostly Australia, Ethiopia, and Mexico. Andamooka, Australia is particularly famous for crystal opals, including the largest crystal opal ever found: the 72-carat Virgin Rainbow black crystal opal.

How much does crystal opal cost?

You’ll see varying crystal opal prices based on quality factors like color, play-of-color, transparency, size, and cut. Overall, crystal opal prices range from around $10 per carat up to $1,500 per carat or higher.

What is the difference between crystal opal and white opal?

Both white opal and crystal opal can fall under N7 to N9 on the body tone scale. However, most white opals are milkier and less transparent than crystal opals. Plus, all crystal opals are precious (display play-of-color) while white opals can be precious or common. Lastly, crystal opal price is generally higher than white opal price.

What is crystal opal used for?

Spiritually, crystal opals are used for enhancing creativity, balance, and happiness. Jewelers use crystal opal in all kinds of jewelry, including October birthstone sets with cabochons or faceted crystal opal rings.

How should I care for a crystal opal?

Opals have low- to mid-range durability, so treat them carefully. Only clean them with a soft brush, mild soap, and room temperature water. Avoid exposing your opal to sudden changes in temperature. For storage, wrap crystal opals in a moist cotton wrapping and keep them in a dark place away from other gemstones.

What is the process for purchasing a crystal opal from your site?

First, set up your account to track orders and talk to sellers. Explore the hundreds of crystal opals for sale at competitive prices. You can buy right away on Catalogue or Buy it Now listings. Or get even lower crystal opal prices on no-reserve auctions with minimum bids starting at just $1.

You’ll only find crystal opals for sale from reputable sellers thanks to our thorough vetting process and ongoing Opal Sheriff program, which lets you request an audit with a third-party opal expert for any crystal opal listing.