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ID #SA1237902
FOR SALE
£6,950
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6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920
For sale by AC Silver
for sale €8,132     $8,827
£6,950
AC Silver

AC Silver

Sellingantiques Verified Since Apr 2009
Browse dealers 439 items
  • About Us
    Welcome to ac silver antique silver and antique jewellery specialists since 1977
  • Trade Associations
    AC Silver is a registered member of LAPADA  CINOA
Relevant Links
Id #SA1237902
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6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

1900 - 1920
For Sale by AC Silver
Description

A stunning, fine and impressive, rare and unusual 6.45 carat aquamarine and 0.48 carat diamond, platinum cocktail ring; part of our diverse collection of gemstone dress rings.

This stunning, fine and impressive antique 1920s aquamarine ring has been crafted in platinum.

The pierced decorated setting displays two pear faceted cut aquamarines totalling 6.45cts, collet set in opposing directions.

The aquamarines are segmented with seven graduating pavé set Old European cut diamonds, totalling 0.48ct.

The finely crafted and detailed, pierced decorated shoulders integrate with the setting and meld seamlessly with the plain ring shank.

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

This platinum aquamarine ring is supplied with an IDGL diamond and gemstone grading report card.

This 1920s pear cut aquamarine cocktail ring is a striking gift. As the birthstone for March, aquamarine also makes this ring a particularly thoughtful choice for a March birthday, as well as milestone anniversaries, engagements, retirement celebrations or significant personal achievements.

Images do not always reflect the true colour and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual colour and showcases each stone in this Art Deco aquamarine platinum ring.

Condition

This impressive antique dress ring is excellent quality, set with stunning aquamarines displaying fine colour, brilliance and presence.

The impressive diamonds display a fine white colour and brilliance; although the diamonds are clarity graded at P1, they show no unsightly black inclusions.

The ring is an excellent gauge of platinum and is in excellent condition.

Reflections in photographs may detract from the true representation of this example of diamond jewellery.

Aquamarine Quality

Cut Pear Faceted

Content 6.45 carats

Diamond Quality

Colour (average grades) G

Clarity (average grades) P1

Cut Old European

Content 0.48 carat

Number of Diamonds

7

Dimensions

Length of setting 2.13cm/0.84'

Width of setting 1.64cm/0.64'

Height of setting 5.49mm/0.22'

Ring Size

UK Size P 1/2

USA Size 7 3/4

The ring size may be professionally adjusted in size on request to meet your personal requirements.

Weight

5.60 grams

Date: Circa 1920

SKU: C9930

Declaration

AC Silver has dated this Platinum Aquamarine Cocktail Ring to the 1920s.

Reference Numbers
Sellingantiques Reference
SA1237902
Dealers Internal Reference
C9930
Dealers Notes

PLEASE NOTE: AC Silver takes pride in offering only quality items for sale.

This pride in quality includes the professional, efficient and personal service extended to all AC Silver customers.

All items purchased usually dispatched within 24 hours following cleared payment.

All items are professionally and securely packaged, sent FREE of charge and are FULLY INSURED during transit.

FREE worldwide international deliveries are via FedEx International Priority Service.

AC Silver is pleased to provide a 30-day money back guarantee.

Description
A stunning, fine and impressive, rare and unusual 6.45 carat aquamarine and 0.48 carat diamond, platinum cocktail ring; part of our diverse collection of gemstone dress rings.

This stunning, fine and impressive antique 1920s aquamarine ring has been crafted in platinum.

fig 1. An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
fig 1. 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

The pierced decorated setting displays two pear faceted cut aquamarines totalling 6.45cts, collet set in opposing directions.

The aquamarines are segmented with seven graduating pavé set Old European cut diamonds, totalling 0.48ct.

“
The finely crafted and detailed, pierced decorated shoulders integrate with the setting and meld seamlessly with the plain ring shank.
AC Silver
fig 2. An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
fig 2. 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

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

This platinum aquamarine ring is supplied with an IDGL diamond and gemstone grading report card.

fig 3. An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
fig 3. 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

This 1920s pear cut aquamarine cocktail ring is a striking gift. As the birthstone for March, aquamarine also makes this ring a particularly thoughtful choice for a March birthday, as well as milestone anniversaries, engagements, retirement celebrations or significant personal achievements.

fig 4. An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
fig 4. 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

Images do not always reflect the true colour and brilliance of gemstones and diamonds. The video however provides a truer representation of the actual colour and showcases each stone in this Art Deco aquamarine platinum ring.

fig 5. An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
fig 5. 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

Condition

This impressive antique dress ring is excellent quality, set with stunning aquamarines displaying fine colour, brilliance and presence.

The impressive diamonds display a fine white colour and brilliance; although the diamonds are clarity graded at P1, they show no unsightly black inclusions.

fig 6. An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
fig 6. 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

The ring is an excellent gauge of platinum and is in excellent condition.

Reflections in photographs may detract from the true representation of this example of diamond jewellery.

Aquamarine Quality

Cut Pear Faceted

fig 7. An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
fig 7. 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

Content 6.45 carats

Diamond Quality

Colour (average grades) G

Clarity (average grades) P1

Cut Old European

Content 0.48 carat

Number of Diamonds

7

Dimensions

Length of setting 2.13cm/0.84'

Width of setting 1.64cm/0.64'

fig 8. An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
fig 8. 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

Height of setting 5.49mm/0.22'

Ring Size

UK Size P 1/2

USA Size 7 3/4

The ring size may be professionally adjusted in size on request to meet your personal requirements.

Weight

5.60 grams

Date: Circa 1920

SKU: C9930

Date of Manufacture

AC Silver has dated this Platinum Aquamarine Cocktail Ring to the 1920s.

Reference Numbers
Sellingantiques Ref
SA1237902
Dealers Internal Ref
C9930
AC Silver
AC Silver
Sellingantiques verified Since Apr 2009

Welcome to ac silver antique silver and antique jewellery specialists since 1977

Dealer Profile

You can view the stock and full dealer information on the AC Silver Profile Page

Trade Associations

AC Silver is a registered member of LAPADA  CINOA

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An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
1 / 13
Film
Film of 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920
Archive I An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.

6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920

Film
Archive II An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View II
Archive III An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View III
Archive IV An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View IV
Archive V An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View V
Archive VI An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View VI
Archive VII An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View VII
Archive VIII An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View VIII
Archive IX An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View IX
Archive X An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View X
Archive XI An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View XI
Archive XII An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders. View XII
Enlarged Archival View
AC Silver

AC Silver
Telephone 0191 240 2645
Location
35B St Georges Terrace
Jesmond
Newcastle Upon Tyne
Tyne and Wear
NE2 2SU
United Kingdom
Dealer Profile Page sellingantiques.co.uk/ac
Verified Since Apr 2009
Items For Sale 439
Items Sold 111
AC Silver
AC Silver
Verified Since Apr 2009
View Dealer Info
Location: 35B St Georges Terrace, Jesmond, Newcastle Upon Tyne, Tyne and Wear, NE2 2SU, United Kingdom
Profile: sellingantiques.co.uk/ac
Verified
Apr 2009
For Sale
439
Sold
111
An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920
Ref: SA1237902
An Art Deco platinum cocktail ring featuring two pear-cut light blue aquamarines set diagonally beside a central row of round diamonds with millegrain borders.
Film of 6.45ct Aquamarine and 0.48ct Diamond, Platinum Cocktail Ring - Antique Circa 1920
Detail View 1
Detail View 2
Detail View 3
Detail View 4
Detail View 5
Detail View 6
Detail View 7
Detail View 8
Detail View 9
Detail View 10
Detail View 11
Archival Detail

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Every single antique dealer on our platform is individually approved by our internal team. We verify their professional trade history, ethical standards, and photographic quality to ensure a secure, high-standard buying environment. Upon joining, every dealer agrees to a strict 9-point code of conduct. While issues can occasionally arise, our dealers typically resolve them swiftly and directly with the buyer. In fact, since our founding in 2002, Sellingantiques has only had to step in to help resolve an issue on roughly five occasions—a true testament to the quality of our dealers and their dedication to your happiness.

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectCocktail Rings
  • Period1900 - 1920
  • StyleArt Deco
  • MaterialPlatinum, Aquamarine, Diamond
  • ColourLight Blue, Silver
  • MotifsMillegrain borders, Pear cut gemstones, Geometric setting, Channel-set diamonds

This Art Deco cocktail ring dates from the 1920 period and consists of a platinum mount holding two pear-cut light blue aquamarines positioned in opposing directions alongside seven graduating round diamonds set in a central row. Millegrain borders edge the geometric setting, which integrates with pierced decorated shoulders and connects to a plain ring shank in a silver colour palette. The setting measures 2.13cm in length by 1.64cm in width, with a height of 5.49mm, and corresponds to a UK size P 1/2 or USA size 7 3/4. Buyers wear this platinum ring on the hand as a dress ring or cocktail ring for formal occasions, social gatherings, milestones, anniversaries, and celebratory events. The structure sits on the finger with a low profile while displaying the contrasting blue stones and white diamonds arranged in a diagonal pattern.

FAQs

Cocktail rings emerged during the 1920s Prohibition era in America, worn at illicit gatherings as a symbol of independence and status. Characterised by bold geometric shapes, large centre gemstones, and intricate platinum metalwork, these rings became a defining jewellery style of the Art Deco period.

Art Deco cocktail rings were predominantly crafted in platinum or white gold to showcase the icy brilliance of diamonds and vibrant coloured gemstones such as aquamarines, sapphires, emeralds, and rubies. Settings frequently featured fine millegrain edging and geometric filigree work.

Authentic pieces from the 1920s typically feature platinum or white gold mounts with delicate hand-applied millegrain borders, geometric pierced work, and era-specific gemstone cuts such as pear, marquise, or step cuts. Period hallmarks and evidence of hand-carved setting details further confirm authenticity.

A statement cocktail ring is designed to be worn on the right hand as a standalone focal piece. It pairs seamlessly with formal eveningwear or adds a sophisticated contrast when worn alongside minimalist contemporary tailoring.

Clean aquamarine and platinum jewellery using lukewarm water, mild liquid soap, and a soft-bristled brush to gently remove accumulated oil and dust. Store the piece separately in a fabric-lined box to prevent harder gemstones or metals from scratching the surface.
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