SKU: 32630

Art Deco GIA 1.70 carat old mine cut diamond platinum engagement ring

$ 6,200$ 7,800
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This Art Deco ring from the 1930s showcases a distinctive 1.70 carat old mine cut diamond with a GIA-certified fancy light brown-yellow hue and I1 clarity, radiating soft warmth and vintage character. Framed by six old mine cut diamonds totaling approximately 0.90 carats, the setting adds gentle brilliance and symmetry. Crafted in platinum and hallmarked with a purity mark, the ring reflects the geometric precision and refined craftsmanship of the Art Deco era. With its unique center stone and antique charm, this piece is a beautifully preserved expression of timeless design.

Certificate: GIA #5231593135
Center Stone: Old mine cut diamond
Weight: 1.70 carats
Color: Fancy light brown-yellow
Clarity: I1
Accent Stone: 6 old mine cut diamonds
Weight: Approximately .90 carats
Color: I
Clarity: I
Metal: Platinum
Era: Art Deco
Circa: 1930's
Hallmarks: Purity mark
Size: 3.25 and can be resized
Gram weight: 3.13
Period 1930
Metals & Materials Platinum,
Size 3.25
Style Choice Art Deco
Primary Stone/s
Stone Type Brown Diamond
Stone Cut Old Mine
Carat Weight 1.0 - 2.0 ct
Colour Grade I
Clarity Grade Included (I1)Included (I1)
7-day, 100% return policy
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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Expertly sourced

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Free ring re-sizing

Frequently Asked Questions

Can I help?

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.

Good Company

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