Antique Oval Diamond Engagement Ring

The Portia Ring is an antique oval diamond engagement ring from the Edwardian Era, circa 1915! This amazing ring centers a GIA Certified 3.75 carat Antique Oval diamond of J color, VS2 clarity. The diamond is set in a platinum 6 triple prong setting with three diamonds to each side set in a leaf-like shape. The shank has gentle fluting detail. The ring is size 7.25 and can be resized!

Why We Love It

A rare and magnificent find! Antique ovals are a rare find and one like this is even more rare! This diamond has a beautiful spread to it that gives it the face up appearance of a 5 carat diamond! It is set very low with subtle details to the basket and a simply executed band to allow that amazing stone shine!


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.

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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 info@andriabarbone.com