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How to Buy Alexandrite


One of the rarest and most valuable gemstones, alexandrite is a luxurious present for lucky babies born in June. It’s also the traditional gift to celebrate a 55th wedding anniversary.

Color change is the most important factor when determining alexandrite’s quality and value. The brighter the colors and the more dramatic the change from bluish green in daylight to purplish red under incandescent light, the more valuable the gem.

Like most gems (except its fellow June birthstone, the pearl), alexandrite is weighed in carats. Higher clarity may weaken the stone’s color change, so color is much more important than clarity in this case.

Alexandrite is more expensive than most gemstones, including sapphires, rubies, emeralds and diamonds. Top-quality Russian alexandrite has sold for as much as $10,000 for one carat. 

Most of the original Russian gemstones belong to museums or private collectors. The few gemstones that are produced today only fit the budgets of the most discerning gem experts. 

Alexandrite is a solid investment because of its rarity, durability and historical significance. If you’re on the hunt for a rare color-changing alexandrite, visit an AGS jeweler who can help you find the perfect gemstone.