Rainbow Moonstone

These are examples of a feldspar mineral called labradorite, which is sometimes called "rainbow moonstone.” They are cut as cabochons. - Photo by Robert Weldon/GIA

Inclusions and Transparency

The ideal moonstone is almost transparent (clear) and contains few inclusions. If it is a little translucent (less clear), then adularescence is more noticeable.

Blue Moonstone

See a ghost-like mist appear deep within this blue moonstone from Tanzania.

Moon and Clouds

Many cultures tie moonstone with the moon. Moonstone’s adularescence is a reminder of the full moon shining through a blanket of thin, high clouds. - Photo © GIA & Tino Hammid, courtesy 23rd St. Shoppe

Cut Moonstone

These moonstones are shaped in the "rose cut," which is a style of gem cut most often seen in antique jewelry. - Photo by Eric Welch/GIA, courtesy Akiva Gill Co.

Bodycolors

Moonstone comes in different bodycolors. - Photo by Robert Weldon/GIA

Shimmer

Moonstone’s shimmer can be seen even in its rough form. A good cut really makes the shimmer stand out. - Photo by Robert Weldon/GIA, courtesy D. Humphrey

Rainbow Moonstone

You may have seen the variety of the mineral labradorite shine as cabochons. Here it is cut differently. Notice how it sparkles! If you remember, this mineral is sometimes called rainbow moonstone. - Photo by Robert Weldon/GIA

Cabochons

Because it displays moonstone's adularescence so well, the cabochon is the most popular cut for this mysterious-looking gem. - Photo by Terri Weimer/GIA, courtesy Temple Trading Company

Large Moonstone

Moonstone comes in many sizes. However, fine moonstone is very hard to find in large sizes, which makes the larger sizes more valuable. - Photo by Robert Weldon/GIA

Blue Adularescence

The finest moonstone is colorless with blue adularescence. - Photo by Robert Weldon/GIA

Billowy Adularescense

See the beauty of adularescense in two types of moonstone.