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How to Buy Moonstone

Yael Designs
Yael Designs

Whether you’re celebrating a June birthday, honoring Florida’s state gem or tapping into this stone’s magical lunar powers, moonstone makes a luminous gift.

Like diamonds and other gems, moonstones are assessed by the 4Cs: color, clarity, cut and carat weight. An AGS jeweler can help you find the moonstone you want.

Generally, the more transparent the stone and the bluer its adularesence (or sheen), the higher its value. Historically, the highest-quality material came from Sri Lanka, but since those sources have essentially dried up, prices of classical blue moonstone have risen sharply.

Indian moonstones, in colors ranging from brown to orange and green, are more readily available and affordably priced. This means everyone can find a moonstone to fit their style and budget.

Lika Behar Collection
Lika Behar Collection

Classical moonstones are cut as cabochons with a high dome to accentuate the adularesence. Large blue moonstones (over 15 carats) are rare, but stones with silvery white adularesence are available in sizes up to hundreds of carats.

This beautiful gemstone’s weakness is its relatively low hardness of 6 on the Mohs scale, making it prone to stress cracking. Care is required with moonstone jewelry like rings or bracelets, so brooches and pendants are often preferred instead.

There is no synthetic moonstone on the market. Although it has been simulated by chalcedony and man-made spinels, these imitations are easy to spot.

Ready to buy? Find an AGS jeweler in your area or learn more about birthstones.