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2.70 carat round brilliant cut diamond ring outside
antique 2.70 carat round brilliant cut diamond ring
antique 2.70 carat diamond ring
2.70 carat round brilliant cut diamond engagement ring
2.70 carat round brilliant cut diamond ring on hand
2.70 carat round brilliant cut diamond ring on finger
wearing 2.70 carat round brilliant cut diamond ring
2.70 carat round brilliant cut diamond ring grading card
antique 2.70 carat diamond ring certificate
2.70 carat round brilliant cut diamond ring grading certificate

Antique 3.20ct Diamond and Platinum Solitaire Engagement Ring

A stunning and impressive antique feature 2.70 carat diamond (3.20 carat total) and platinum solitaire style engagement ring; part of our collection of 1920s engagement rings

This stunning, fine and impressive antique round brilliant cut diamond ring has been crafted in platinum.

The pierced decorated setting displays a stunning feature 2.70ct transitional modern brilliant round cut diamond, four-claw set in subtle relief, to the centre of a plain Art Deco halo design.

The tapering, pierced decorated Art Deco style ring shoulders are each further embellished with four pavé set transitional modern brilliant round cut diamonds, integrating with the main setting and blending seamlessly with the plain ring shank.

This stunning diamond engagement ring has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

This impressive 1920s ring is supplied with an IDGL diamond grading report certificate for the feature stone, in addition to an IDGL diamond grading report card for the supporting stones.

This 4 claw solitaire setting with diamond shoulders is a timeless choice, most often selected as an engagement ring. The classic solitaire represents enduring love, while the diamond shoulders add an elegant touch of brilliance – making it perfect for gifting or personal acquisition.

This stunning 1920s engagement ring is exceptional quality, set with a stunning high colour graded feature diamond displaying a fine white colour, brilliance and presence.

The impressive supporting diamonds display a fine white colour and brilliance.

This diamond ring is an exceptional gauge of platinum and is in exceptional condition.

Additional information

Diamond Quality

Feature Diamond
Colour I
Clarity VVS1
Cut Round Brilliant
Content 2.70 carats
Dimensions 9.02mm (average diameter) x 5.41mm (depth)

Supporting Diamonds
Colour (average grades) G
Clarity (average grades) VS2
Cut Transitional Modern Brilliant Round
Content 0.50 carat

Total Diamond Content
3.20 carats

Number of Diamonds
9

Dimensions

Width of setting 1.16cm/0.46"
Height of setting 7.72mm/0.3"

Weight

6.16 grams

Date

Circa 1925

Gemstone

Ring Size

UK Size I 1/2 – USA Size 4 1/2

Diamond Clarity:

VVS1

Diamond Colour:

I

Can be Resized:

yes

FREE INTERNATIONAL SHIPPING
Dispatched via DHL (or equivalent) on the next working day.

Estimated Delivery:

  • UK: 2–3 working days
  • Worldwide: 5–7 working days

Fully Insured in Transit
Free insurance up to £30,000. AC Silver remains responsible until delivery is confirmed.

Returns & Cancellations
You have 14 days to cancel your order.

Returns must be sent to our UK address within 14 days of cancellation.

Customers are responsible for return postage. A refund will be processed after inspection of the returned item.

Altered or Personalised Items

  • Items resized or altered before dispatch: exchange or credit note only
  • Engraved silver: non-refundable

Full returns & cancellation policy

What our customers say

5.0 ★★★★★ ★★★★★ based on 201 reviews
★★★★★ ★★★★★

Lovely selection & excellent service

AC Silver has a stunning selection of antique and vintage items. Both of my brooches arrived right on time as indicated by the tracking. They are even lovelier in person and I look forward to wearing them for decades to come. Andrew and Gemma provided excellent communication and prompt dispatch. I would absolutely recommend working through them.
Christina 15 Jul 2026
★★★★★ ★★★★★

Fabulous service, beautiful product.

Fabulous service, beautiful product.
Imogen 24 Jun 2026
★★★★★ ★★★★★

Beautiful collection and outstanding service

Beautiful collection and outstanding service. I already bought two extraordinary pieces and can only highly recommend.
Christine 23 Jun 2026
★★★★★ ★★★★★

Excellent customer care.

I had to place the order over the phone as my internet was misbehaving. The lady who I spoke to could not have been more helpful and was particularly careful to get all the details correct. I was then informed about the collection and dispatch of the item purchased, by email. The item arrived as expected and it had been most well packed so that no harm could come to it. It was a delight to purchase this item from C6323, AC Silver, and I could not fault any aspect of their customer care. I was highly delighted with my silver mustard pot and it was much better than the pictures on the web site.
Hilary 20 May 2026
★★★★★ ★★★★★

Exceptional personal service

First class personal service and attention to detail along with an exceptional quality of items offered for sale. A very smooth purchasing experience with swift and safe despatch of high value objects via courier. Highly recommended.
Colin 28 Apr 2026
★★★★★ ★★★★★

A lovely experience

AC Silver's website is very detailed and informative - allows customers to make well good comparisons and subsequent choices. The owner and his staff are very helpful and friendly - dealing with them is a pleasure. They go the extra mile to make sure that customers are totally satisfied with their purchases. Would highly recommend this store.
Wendy 27 Feb 2026
★★★★★ ★★★★★

Excellent experience

Excellent experience buying a beautiful item from AC Silver. Enquiries were dealt with quickly and courteously, I felt very confident buying an expensive item online. It arrived quickly and safely, beautifully packaged. I am delighted with it and wouldn't hesitate to recommend AC Silver.
Susan 24 Jan 2026
★★★★★ ★★★★★

This was an all-around great experience. The pre-sale communication was excellent and informative. The team was extremely responsive. When the item arrived, it was exactly as described.

This was an all-around great experience. The pre-sale communication was excellent and informative. The team was extremely responsive. When the item arrived, it was exactly as described. I would recommend these guys to anyone.
26 Dec 2025

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