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ID #SA1187636
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£3,950
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Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945
AC Silver
for sale €4,622     $5,017
£3,950
AC Silver

AC Silver

Sellingantiques Verified Since Apr 2009
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    Welcome to ac silver antique silver and antique jewellery specialists since 1977
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Id #SA1187636
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Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

1920 - 1940
For Sale by AC Silver
Description

A stunning, fine and impressive vintage 3.20 carat sapphire and 0.30 carat diamond, platinum ring; part of our collection of sapphire engagement rings.

This stunning, fine and impressive vintage sapphire ring has been crafted in platinum.

The pierced decorated setting is ornamented with a central feature 3.20ct round faceted cut sapphire.

The tapering ring shoulders are each ornamented with two claw set transitional modern brilliant round cut diamonds, integrating with the feature setting and melding seamlessly with the plain hallmarked ring shank.

This stunning example of vintage sapphire jewellery is hallmarked to the interior of the shank with the platinum mark (IRID900PLAT).

This impressive vintage blue sapphire ring in platinum is supplied with an IDGL diamond and gemstone grading report card.

This vintage round sapphire ring with diamonds is a quietly elegant choice for marking meaningful occasions. The blue sapphire, long associated with loyalty and devotion, makes it especially fitting for anniversaries or a refined romantic gesture.

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 sapphire engagement ring.

Condition

This vintage ring is excellent quality, set with a stunning sapphire displaying fine colour, brilliance and presence.

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

This vintage sapphire and diamond ring is an excellent gauge of platinum and is in excellent condition, with clear hallmarks to the interior surface of the shank.

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

Sapphire Quality

Colour Blue

Cut Round Faceted

Content 3.20 carats

Dimensions 8.67mm (length) x 8.62mm (width) x 6.21mm (depth)

Diamond Quality

Colour (average grades) F

Clarity (average grades) VVS2

Cut Transitional Modern Brilliant Round

Content 0.30 carat

Number of Diamonds

4

Dimensions

Length of setting 1.86cm/0.73'

Width of setting 8.68mm/0.34'

Height of setting 7.04mm/0.28'

Ring Size

UK Size K 1/2

USA Size 5 3/8

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

Weight

5.28 grams

Date: Circa 1945

A video is available upon request.

Physical Dimensions
Height
0.7cm (0.28")
Width
0.9cm (0.35")
Depth
1.9cm (0.75")
Declaration

AC Silver has dated this Sapphire Diamond Platinum Ring to the 1940s.

Reference Numbers
Sellingantiques Reference
SA1187636
Dealers Internal Reference
C9562
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 vintage 3.20 carat sapphire and 0.30 carat diamond, platinum ring; part of our collection of sapphire engagement rings.

This stunning, fine and impressive vintage sapphire ring has been crafted in platinum.

fig 1. A round blue sapphire set in a platinum band flanked by round diamonds on each side.
fig 1. Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

The pierced decorated setting is ornamented with a central feature 3.20ct round faceted cut sapphire.

The tapering ring shoulders are each ornamented with two claw set transitional modern brilliant round cut diamonds, integrating with the feature setting and melding seamlessly with the plain hallmarked ring shank.

This stunning example of vintage sapphire jewellery is hallmarked to the interior of the shank with the platinum mark (IRID900PLAT).
AC Silver
fig 2. A round blue sapphire set in a platinum band flanked by round diamonds on each side.
fig 2. Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

This impressive vintage blue sapphire ring in platinum is supplied with an IDGL diamond and gemstone grading report card.

This vintage round sapphire ring with diamonds is a quietly elegant choice for marking meaningful occasions. The blue sapphire, long associated with loyalty and devotion, makes it especially fitting for anniversaries or a refined romantic gesture.

fig 3. A round blue sapphire set in a platinum band flanked by round diamonds on each side.
fig 3. Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

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 sapphire engagement ring.

fig 4. A round blue sapphire set in a platinum band flanked by round diamonds on each side.
fig 4. Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

Condition

This vintage ring is excellent quality, set with a stunning sapphire displaying fine colour, brilliance and presence.

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

fig 5. A round blue sapphire set in a platinum band flanked by round diamonds on each side.
fig 5. Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

This vintage sapphire and diamond ring is an excellent gauge of platinum and is in excellent condition, with clear hallmarks to the interior surface of the shank.

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

fig 6. A round blue sapphire set in a platinum band flanked by round diamonds on each side.
fig 6. Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

Sapphire Quality

Colour Blue

Cut Round Faceted

Content 3.20 carats

Dimensions 8.67mm (length) x 8.62mm (width) x 6.21mm (depth)

Diamond Quality

Colour (average grades) F

Clarity (average grades) VVS2

Cut Transitional Modern Brilliant Round

fig 7. A round blue sapphire set in a platinum band flanked by round diamonds on each side.
fig 7. Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

Content 0.30 carat

Number of Diamonds

4

Dimensions

Length of setting 1.86cm/0.73'

Width of setting 8.68mm/0.34'

Height of setting 7.04mm/0.28'

Ring Size

UK Size K 1/2

USA Size 5 3/8

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

Weight

5.28 grams

Date: Circa 1945

A video is available upon request.

Height
0.7cm (0.28")
Width
0.9cm (0.35")
Depth
1.9cm (0.75")
Date of Manufacture

AC Silver has dated this Sapphire Diamond Platinum Ring to the 1940s.

Reference Numbers
Sellingantiques Ref
SA1187636
Dealers Internal Ref
C9562
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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A round blue sapphire set in a platinum band flanked by round diamonds on each side.
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Archive I A round blue sapphire set in a platinum band flanked by round diamonds on each side.

Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945

Archive II A round blue sapphire set in a platinum band flanked by round diamonds on each side. View II
Archive III A round blue sapphire set in a platinum band flanked by round diamonds on each side. View III
Archive IV A round blue sapphire set in a platinum band flanked by round diamonds on each side. View IV
Archive V A round blue sapphire set in a platinum band flanked by round diamonds on each side. View V
Archive VI A round blue sapphire set in a platinum band flanked by round diamonds on each side. View VI
Archive VII A round blue sapphire set in a platinum band flanked by round diamonds on each side. View VII
Archive VIII A round blue sapphire set in a platinum band flanked by round diamonds on each side. View VIII
Archive IX A round blue sapphire set in a platinum band flanked by round diamonds on each side. View IX
Archive X A round blue sapphire set in a platinum band flanked by round diamonds on each side. View X
Archive XI A round blue sapphire set in a platinum band flanked by round diamonds on each side. View XI
Archive XII A round blue sapphire set in a platinum band flanked by round diamonds on each side. View XII
Archive XIII A round blue sapphire set in a platinum band flanked by round diamonds on each side. View XIII
Archive XIV A round blue sapphire set in a platinum band flanked by round diamonds on each side. View XIV
Archive XV A round blue sapphire set in a platinum band flanked by round diamonds on each side. View XV
Archive XVI A round blue sapphire set in a platinum band flanked by round diamonds on each side. View XVI
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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 459
Items Sold 103
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
459
Sold
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A round blue sapphire set in a platinum band flanked by round diamonds on each side.
Vintage 3.20ct Sapphire and 0.30ct Diamond Platinum Ring Circa 1945
Ref: SA1187636
A round blue sapphire set in a platinum band flanked by round diamonds on each side.
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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.
Our dealers are highly experienced in packing and shipping fragile, high-value antiques. Because you are in direct contact with the dealer, you will be able to easily go through all available shipping and insurance options together to ensure your item arrives safely.
Antiques are the ultimate green purchase. By choosing historical pieces over newly manufactured goods, you completely eliminate the carbon footprint of modern mass production while preserving exceptional, timeless craftsmanship.

Mid-20th-century sapphire rings from the 1940s often combine bold, round central gemstones with structured metalwork, incorporating diamond accent shoulders set into durable platinum or white gold.

High-grade vintage gemstone rings typically feature natural corundum sapphires and natural diamonds mounted in platinum or high-karat gold alloys to ensure long-term stability and strength.

Authentic pieces from this period generally feature clear maker or purity hallmarks, such as 900 PLAT or PLAT, alongside hand-finished claw settings and period-appropriate gem cutting techniques.

A classic sapphire and diamond ring serves as a focal accessory, pairing easily with modern formalwear or understated everyday tailoring due to its timeless blue and silver tones.

Clean the ring using warm water, mild soap, and a soft-bristled brush to remove dust beneath the setting. Store the piece separately from other jewellery to prevent diamonds from scratching adjacent metal.
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