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ID #SA1135857
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£4,950
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Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935
AC Silver
for sale €5,792     $6,287
£4,950
AC Silver

AC Silver

Sellingantiques Verified Since Apr 2009
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Id #SA1135857
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Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

1920 - 1940
For Sale by AC Silver
Description

A stunning, fine and impressive antique 1.20 carat Basaltic sapphire and 1.28 carat diamond, platinum cluster ring; part of our diverse sapphire jewellery collection.

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

The cluster design is ornamented with a central feature claw set 1.20ct oval faceted cut Basaltic sapphire.

The sapphire is encompassed with a halo of ten pavé set Old European cut diamonds, accented with a collet set baguette cut diamond to either side.

The subtly elevated ring shoulders integrate with the main setting and blend seamlessly to a plain shank.

This oval sapphire cluster ring with baguette side stones 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.

A cluster ring with an oval sapphire is an elegant gift for engagements, 45th anniversaries, and milestone birthdays. Its timeless design and vivid blue hue also make it a meaningful choice for graduations, Mother's Day, or as a 'something blue' for brides.

NOTE: * The Gemmological Certification Services (GCS) lab has verbally verified (report number 5785-0868) that the sapphire originated in Basaltic deposits and shows no signs of heat treatment.

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.

Condition

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

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

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

Reflections in photographs may detract from the true representation of this fine example of antique sapphire jewellery.

Sapphire Quality

Origin Basaltic

Colour Blue

Cut Oval Faceted

Content 1.20 carats

Dimensions 7.13mm (length) x 5.81mm (width) x 3.16mm (depth)

Diamond Quality

Colour (average grades) G

Clarity (average grades) SI2

Cut Old European/Baguette

Content 1.28 carats

Number of Diamonds

12

Dimensions

Length of setting 1.49cm/0.59'

Width of setting 1.37cm/0.54'

Height of setting 5.95mm/0.23'

Ring Size

UK Size L

USA Size 5 1/2

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

Weight

4.92 grams

Date: Circa 1935

A video is available upon request.

Physical Dimensions
Height
0.6cm (0.24")
Width
1.4cm (0.55")
Depth
1.5cm (0.59")
Declaration

AC Silver has dated this Art Deco Sapphire Ring to the 1930s.

Reference Numbers
Sellingantiques Reference
SA1135857
Dealers Internal Reference
C9150
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 1.20 carat Basaltic sapphire and 1.28 carat diamond, platinum cluster ring; part of our diverse sapphire jewellery collection.

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

fig 1. An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
fig 1. Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

The cluster design is ornamented with a central feature claw set 1.20ct oval faceted cut Basaltic sapphire.

The sapphire is encompassed with a halo of ten pavé set Old European cut diamonds, accented with a collet set baguette cut diamond to either side.
AC Silver
fig 2. An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
fig 2. Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

The subtly elevated ring shoulders integrate with the main setting and blend seamlessly to a plain shank.

This oval sapphire cluster ring with baguette side stones has been independently tested using state of the art technology (Niton XL2 Analyzer) and verified as platinum.

fig 3. An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
fig 3. Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

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

A cluster ring with an oval sapphire is an elegant gift for engagements, 45th anniversaries, and milestone birthdays. Its timeless design and vivid blue hue also make it a meaningful choice for graduations, Mother's Day, or as a 'something blue' for brides.

fig 4. An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
fig 4. Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

NOTE: * The Gemmological Certification Services (GCS) lab has verbally verified (report number 5785-0868) that the sapphire originated in Basaltic deposits and shows no signs of heat treatment.

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.

fig 5. An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
fig 5. Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

Condition

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

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

fig 6. An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
fig 6. Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

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

Reflections in photographs may detract from the true representation of this fine example of antique sapphire jewellery.

Sapphire Quality

fig 7. An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
fig 7. Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

Origin Basaltic

Colour Blue

Cut Oval Faceted

Content 1.20 carats

Dimensions 7.13mm (length) x 5.81mm (width) x 3.16mm (depth)

Diamond Quality

Colour (average grades) G

Clarity (average grades) SI2

Cut Old European/Baguette

fig 8. An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
fig 8. Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

Content 1.28 carats

Number of Diamonds

12

Dimensions

Length of setting 1.49cm/0.59'

Width of setting 1.37cm/0.54'

Height of setting 5.95mm/0.23'

Ring Size

UK Size L

USA Size 5 1/2

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

Weight

4.92 grams

Date: Circa 1935

A video is available upon request.

Height
0.6cm (0.24")
Width
1.4cm (0.55")
Depth
1.5cm (0.59")
Date of Manufacture

AC Silver has dated this Art Deco Sapphire Ring to the 1930s.

Reference Numbers
Sellingantiques Ref
SA1135857
Dealers Internal Ref
C9150
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 cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
1 / 12
Archive I An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.

Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935

Archive II An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View II
Archive III An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View III
Archive IV An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View IV
Archive V An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View V
Archive VI An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View VI
Archive VII An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View VII
Archive VIII An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View VIII
Archive IX An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View IX
Archive X An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View X
Archive XI An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View XI
Archive XII An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders. View XII
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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
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Location: 35B St Georges Terrace, Jesmond, Newcastle Upon Tyne, Tyne and Wear, NE2 2SU, United Kingdom
Verified
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An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
Antique 1.20ct Basaltic Sapphire and 1.28ct Diamond, Platinum Cluster Ring Circa 1935
Ref: SA1135857
An Art Deco platinum cluster ring featuring a central oval blue sapphire framed by round diamonds and flanked by baguette diamond shoulders.
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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.

Art Deco jewellery from the 1930s features geometric forms, contrasting gem cuts, and platinum settings, often incorporating vibrant blue sapphires surrounded by diamonds.

Platinum offered superior strength and durability, allowing jewellers to create delicate, intricately detailed settings that securely held high-carat precious stones.

Authentic 1930s pieces typically display hand-cut stones, such as old European or baguette cuts, along with characteristic platinum hallmarks and geometric bezel settings.

An antique sapphire ring serves as a focal piece that pairs well with minimalist platinum bands or complementary blue gemstone accessories for a balanced look.

Clean the ring gently using warm soapy water and a soft brush, avoiding harsh chemicals, and store it separately in a lined box to prevent abrasion.
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