Art Deco Era Marcus & Co. Colombian Emerald and Diamond Ring in Platinum

The Devonna ring is an authentic Marcus & Co. diamond and emerald ring from the Art Deco Era circa 1915. The ring centers a GIA-certified Colombian Cushion Cut emerald of minor clarity enhancement of approximately 0.90 carats. On either side of the emerald is an Old Mine Cut diamond of approximately G-H color, together totaling approximately 1.30 carats. The stones are set in a platinum setting. The ring is currently size 7.25 and can be resized!

Why We Love It 

A gorgeous, vibrant green emerald in the perfect cushion shape centers this Art Deco era antique ring that we love as a unique engagement ring or the perfect gemstone addition to your jewelry box. Bright white diamonds and beautiful open filigree work are additional details that only add to the beauty of this Marcus & Co ring a great collector's piece. 

The dimensions of the center stone are 7.00 x 4.80 x 3.55 mm.

Click here to view the GIA report on the diamond.


We're here to help you build the jewelry collection of your dreams. If you don't love an item (that's not final sale), let us know within 5 days of receipt and you can return it for a full refund.

create a stack


Band pairing is all about your personal style and is a great way to let it shine through. There is no right or wrong way to pair your rings!


What payment methods can I use?

We accept all major credit cards, cashier's check, or wire transfers. Contact us if you would like to pay via check or wire transfer!

How long does resizing take?

Depending on the ring and time of year, resizing usually takes 7-10 days. If you need a piece sooner than that, contact us and we can see if we can expedite it for you!

Can I make changes to my order after it’s been placed?

This all depends! Call or email us ASAP if you need to make changes!

How does shipping work?

Once your piece is ready to go (if it needs to be resized), we will email you to coordinate shipping!

Shipping is fully insured, overnight, and will require a signature upon delivery!

How can I return my items?

If you would like to return a piece that is not Final Sale, please email us within 5 days of receipt of the item. We will send you a label and instructions to ship it back for a full refund!

Contact us

Call us Mon-Fri 10-5 at 646-867-8772

Email us anytime at