Lab Grown Antique Cushion Alexandrites

Chatham-created cushion cut alexandrites

​Alexandrite, the birthstone for June, is beautifully mysterious. It exhibits the unique phenomenon known as Color Change. Under warm light Chatham created antique cushion alexandrites are a reddish-purple while under natural white light they turn a beautiful teal green.

Chatham lab grown cushion cut alexandrites exhibit excellent color change because they are grown in a controlled environment in their natural crystal habit, shown left. They are not imitations, rather they are REAL alexandrites carefully grown. Top quality natural alexandrites with excellent color change are rare and extremely expensive. Thankfully, Chatham created alexandrites cost a fraction of the price of mined alexandrites. Chatham antique cushion alexandrites have a radiant pavilion to maximize light return and color.

Let our graduate gemologist help you

Need help selecting the perfect Chatham antique cushion alexandrite? Call our staff gemologist for one-on-one attention you deserve to select the perfect stone. If you don’t see the stone you’re looking for, we can custom cut one to suit your needs. Consider our custom jewelry design and creation services. You’ll work closely with a design consultant to have your gorgeous Chatham antique cushion alexandrite mounted in a custom jewelry masterpiece. Call us today at 303-931-3141 for personal assistance.

This gorgeous engagement ring features a 6x6mm Chatham square cushion cut alexandrite center stone and diamond studded split shank. 

We will price match any legitimate Chatham retailer.

Antique cushion weights are similar to those of emerald cut. Pictures not actual size. Alexandrite is denser than diamond, so it weighs more for the same physical size. Because carat is a measurement of weight, not size, it’s important to order colored stones based on physical size rather than carat weight.