SKU: 35571

Art Deco GIA 3.09 carat old European cut diamond platinum engagement ring

$ 28,500

A magnificent Art Deco engagement ring centered by a 3.09 carat old European cut diamond in platinum.

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Certificates: Appraisal GIA
This extraordinary Art Deco engagement ring is a breathtaking testament to antique craftsmanship and bold 1930s design. At its center rests a remarkable 3.09 carat old European cut diamond, certified by GIA, whose broad facets and high crown create a mesmerizing, candlelit brilliance unique to hand-cut stones of the era. Its generous scale and distinctive faceting give the ring an unmistakable presence, rich with character and history.
Framing the center stone, marquise and single cut diamond accents introduce elegant movement and refined sparkle. Their carefully arranged forms enhance the architectural geometry so characteristic of Art Deco design, adding balance and dimension without detracting from the commanding beauty of the central diamond. Crafted in platinum, the setting provides a luminous and enduring foundation, highlighting the diamonds’ clarity while reinforcing the ring’s crisp, structured silhouette.
Bold, romantic, and undeniably timeless, this ring embodies the glamour and sophistication of the Art Deco period at its finest. It is a true statement piece—an heirloom engagement ring defined by exceptional scale, antique brilliance, and masterful craftsmanship, destined to be cherished for generations.
Period 1930
Metals & Materials Platinum,
Size 7
Style Choice Art Deco
Primary Stone/s
Stone Type Blue Diamond
Stone Cut Old European
Carat Weight 3.0 - 5.0 ct
Colour Grade QH
Clarity Grade Slightly Included (SI1)Slightly Included (SI1)

7-day, 100% return policy

1-Year service warranty

From delivery or collection, we're happy to give you 7 calendar days to try the jewelry in the comfort of your own home. If you decide to return the jewelry, we also provide the return shipping label & instructions.

This ring includes sizing at the time of purchase to ensure that your ring fits perfectly! Just enter your ring size at checkout.

We guarantee free worldwide shipping. The typical delivery time is 5-7 days (if it doesn’t need resizing).

Crafted to last

These rings have already lived a life or two — now they’re ready for yours. Thoughtfully restored and lovingly inspected, many can be resized to fit just right, so you can wear something storied, beautiful, and made to continue the journey with you.

Shop with zero worries

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7 day 100% return policy

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Free worldwide shipping

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1-year service warranty

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Free ring re-sizing

Frequently Asked Questions

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If you want to see your piece from every angle or have a question, book a virtual appointment with Sasha — she’s here to help.

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Loved by vintage fans!

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Beyond obsessed

I'll just start by saying that every piece of vintage jewelry in this shop is more beautiful than any other I saw in all of LA. Not only do I absolutely adore my ring, I had an amazing experience here as well. Basically the dream situation for a newly engaged gal! 

Haley M.
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Loved the ring

Love this place. The staff's knowledge and attention to detail was incredibly helpful. 

Dan C.
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Your Biggest Fans

For the past four years we have only used Trumpet & Horn for fine jewelry purchases. The team at Trumpet & Horn go above and beyond to make sure that each detail is classy and beautiful. I have worn my engagement set every day for nearing four years. 

Ashley H.
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Positive experience

My fiance and I found the perfect ring at Trumpet & Horn. After not finding anything in stores, we turned to the internet and were glad to find Trumpet & Horn. I absolutely LOVE it.  

Sarah B.

Loyal Customer