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ID #SA1236153
FOR SALE
£5,950
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Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920
For sale by AC Silver
for sale €6,962     $7,557
£5,950
AC Silver

AC Silver

Sellingantiques Verified Since Apr 2009
Browse dealers 370 items
  • About Us
    Welcome to ac silver antique silver and antique jewellery specialists since 1977
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Id #SA1236153
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Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

1900 - 1920
For Sale by AC Silver
Description

A stunning, fine and impressive antique 2.88 carat Basaltic sapphire and 0.22 carat diamond, platinum ring; part of our diverse collection of antique sapphire rings.

This stunning, fine and impressive antique engagement ring has been crafted in platinum.

The pierced decorated setting is ornamented with an impressive feature 2.88ct oval cut sapphire, four claw set in subtle relief to the centre.

The sapphire is flanked on either side by a collar design ornamented with eight impressive pavé set Old European cut diamonds, in a vertical linear formation.

The tapering ring shoulders are each further ornamented with three pavé set diamonds, melding with the setting and blend seamlessly with the plain ring shank.

This 1920s sapphire and diamond ring has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

This impressive ring is supplied with an IDGL diamond and gemstone grading report card*.

This oval sapphire engagement ring in platinum is best suited to occasions that celebrate love, commitment and lasting significance, making it a timeless choice for engagements and meaningful relationship milestones. Its combination of classic design and symbolic depth makes it an excellent alternative to a traditional diamond solitaire, particularly for someone who appreciates coloured gemstones and timeless sophistication.

NOTE: * The Gemmological Certification Services (GCS) lab has verbally (report number 5786-1799) accredited the sapphire originating in Basaltic Deposits and verifies that the gemstone shows indications of heating.

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 antique sapphire ring.

Condition

This antique ring is excellent quality, set with an impressive sapphire displaying fine colour, brilliance and presence.

The high colour graded diamonds display a fine white colour and brilliance.

This 1920s sapphire ring is an excellent gauge of platinum and is in excellent condition.

Reflections in photographs may detract from the true representation of this stunning oval sapphire ring.

Sapphire Quality

Origin Basaltic Deposit

Cut Oval

Content 2.88 carats

Dimensions 9.96mm (length) x 7.76mm (width) x 4.65mm (depth)

Diamond Quality

Colour (average grades) H

Clarity (average grades) P1

Cut Old European

Content 0.22 carat

Number of Diamonds

22

Dimensions

Height of setting 5.01mm/0.2'

Ring Size

UK Size M

USA Size 6

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

Weight

4.34 grams

Date: Circa 1920

SKU: C9769

Declaration

AC Silver has dated this Antique Sapphire Platinum Ring to the 1920s.

Reference Numbers
Sellingantiques Reference
SA1236153
Dealers Internal Reference
C9769
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 antique 2.88 carat Basaltic sapphire and 0.22 carat diamond, platinum ring; part of our diverse collection of antique sapphire rings.

This stunning, fine and impressive antique engagement ring has been crafted in platinum.

fig 1. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 1. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

The pierced decorated setting is ornamented with an impressive feature 2.88ct oval cut sapphire, four claw set in subtle relief to the centre.

“
The sapphire is flanked on either side by a collar design ornamented with eight impressive pavé set Old European cut diamonds, in a vertical linear formation.
AC Silver
fig 2. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 2. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

The tapering ring shoulders are each further ornamented with three pavé set diamonds, melding with the setting and blend seamlessly with the plain ring shank.

This 1920s sapphire and diamond ring has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

fig 3. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 3. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

This impressive ring is supplied with an IDGL diamond and gemstone grading report card*.

This oval sapphire engagement ring in platinum is best suited to occasions that celebrate love, commitment and lasting significance, making it a timeless choice for engagements and meaningful relationship milestones. Its combination of classic design and symbolic depth makes it an excellent alternative to a traditional diamond solitaire, particularly for someone who appreciates coloured gemstones and timeless sophistication.

fig 4. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 4. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

NOTE: * The Gemmological Certification Services (GCS) lab has verbally (report number 5786-1799) accredited the sapphire originating in Basaltic Deposits and verifies that the gemstone shows indications of heating.

fig 5. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 5. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring 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 antique sapphire ring.

fig 6. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 6. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

Condition

This antique ring is excellent quality, set with an impressive sapphire displaying fine colour, brilliance and presence.

The high colour graded diamonds display a fine white colour and brilliance.

fig 7. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 7. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

This 1920s sapphire ring is an excellent gauge of platinum and is in excellent condition.

Reflections in photographs may detract from the true representation of this stunning oval sapphire ring.

Sapphire Quality

fig 8. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 8. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

Origin Basaltic Deposit

Cut Oval

Content 2.88 carats

Dimensions 9.96mm (length) x 7.76mm (width) x 4.65mm (depth)

Diamond Quality

Colour (average grades) H

Clarity (average grades) P1

Cut Old European

Content 0.22 carat

fig 9. An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
fig 9. Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

Number of Diamonds

22

Dimensions

Height of setting 5.01mm/0.2'

Ring Size

UK Size M

USA Size 6

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

Weight

4.34 grams

Date: Circa 1920

SKU: C9769

Date of Manufacture

AC Silver has dated this Antique Sapphire Platinum Ring to the 1920s.

Reference Numbers
Sellingantiques Ref
SA1236153
Dealers Internal Ref
C9769
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 ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
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Film
Film of Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920
Archive I An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.

Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920

Film
Archive II An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View II
Archive III An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View III
Archive IV An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View IV
Archive V An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View V
Archive VI An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View VI
Archive VII An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View VII
Archive VIII An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View VIII
Archive IX An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View IX
Archive X An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. View X
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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 370
Items Sold 110
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
Verified
Apr 2009
For Sale
370
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An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
Antique 2.88ct Basaltic Sapphire and 0.22ct Diamond Platinum Ring Circa 1920
Ref: SA1236153
An Art Deco platinum ring featuring a centrally set oval blue sapphire flanked by diamond-set geometric shoulders.
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Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1900 - 1920
  • StyleArt Deco
  • MaterialPlatinum, Sapphire, Diamond
  • ColourBlue, Silver
  • MotifsOval-cut centre stone, Milgrain edges, Geometric shoulders, Four-prong claw setting

This Art Deco platinum ring dates from the 1920s and features a centrally set oval blue sapphire flanked by diamond-set geometric shoulders. The setting holds a 2.88 carat oval-cut sapphire secured in a four-prong claw setting, flanked on either side by vertical linear formations of pavé-set Old European cut diamonds and milgrain edges along the collar design. The tapering ring shoulders carry additional pavé-set diamonds that transition into a plain platinum shank. In terms of physical dimensions, the ring has a setting height of 5.01 mm, a sapphire length of 9.96 mm, a width of 7.76 mm, a depth of 4.65 mm, and weighs 4.34 grams, corresponding to a UK size M and a USA size 6. It is suited for everyday wear on the hand as an engagement or fashion ring, fitting standard finger wear in modern domestic or social settings.

Art Deco sapphire rings from the 1920s are defined by geometric symmetry, contrast, and refined metalwork. Jewellers frequently set rich blue gemstones alongside white diamonds in platinum, featuring angular shoulders, step-cut or oval facets, and detailed milgrain borders.

During the 1920s, platinum became the premier precious metal for high jewellery due to its strength, allowing for delicate filigree and milgrain settings. Central stones were typically natural sapphires, emeralds, or diamonds, complimented by smaller accent diamonds.

Authentic pieces exhibit precise hand-engraved milgrain, period-appropriate gemstones with natural inclusions, and platinum purity stamps. The underside of settings often displays period craftsmanship techniques rather than modern casting lines.

An Art Deco sapphire ring serves as a focal piece when worn independently on the right hand, or layered alongside slim, unadorned platinum and diamond bands for a refined multi-ring arrangement.

Clean the piece gently using warm water, mild soap, and a soft-bristled brush to remove dust behind the stone mountings. Avoid harsh chemical cleaners or ultrasonic baths if the gemstone setting features micro-pave or delicate milgrain.
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