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ID #SA1218779
FOR SALE
£5,750
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Platinum Tanzanite (3.00ct) and Diamond (2.26ct) Cluster Ring 7.5g
For sale by AgAu Jewellery
for sale €6,728     $7,303
£5,750
AgAu Jewellery

AgAu Jewellery

Sellingantiques Verified Since Apr 2011
Browse dealers 286 items
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Id #SA1218779
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Platinum Tanzanite (3.00ct) and Diamond (2.26ct) Cluster Ring 7.5g

1940 - 1960
For Sale by AgAu Jewellery
Description

A custom made Art Deco revival piece Platinum Tanzanite (3.00ct) and Diamond (2.26ct) Cluster Ring. The ring is set with an oval cut Tanzanite (3.00ct) and is super quality with fantastic colour and clarity. The tanzanite is surrounded by a halo cluster of 8 brilliant cut diamonds (20 points) each and 2 larger brilliant cut diamonds (33 points) each set in line with the shank splitting to brilliant cut diamond into 2 sets of 4, totalling (2.26ct). The diamonds are fantastic quality, brilliantly colored white diamonds, this was a custom made piece. The ring  has full UK hallmarks for platinum 950. The face of the ring measures 1.9cm width x 1.7cm length and weighs 7.5 grams, the ring size is a UK size N 1/2. The ring is offered in excellent condition.

Metal: Platinum 950

Stones: 1 x Tanzanite (3.00ct), 10 diamonds, totalling (2.26ct),

Ring Face Measurement: 1.9cm width x 1.7cm length

Hallmarks: Hallmarked for Platinum 950.

Ring Size: UK Ring size N 1/2 US size 7.5

Weight: 7.5g

Condition: Excellent Condition

Physical Dimensions
Height
1.7cm (0.67")
Width
1.9cm (0.75")
Depth
2.3cm (0.91")
Declaration

AgAu Jewellery has dated this Platinum Tanzanite Cluster Ring to the 1960s.

Reference Numbers
Sellingantiques Reference
SA1218779
Dealers Internal Reference
TNP340017
Dealers Notes

To locate this item on our website use the 'Internal Ref' below on agaujewellery.com where you can also view and/upgrade your packaging, pay using Credit/Debit card, PayPal, American Express, GooglePay and ApplePay

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All items are shipped using our standard of 5 working days, for express shipping please order on our website. EUROPEAN & WORLDWIDE CUSTOMERS ONLY: Please add £32 at the Stripe shipping option for European and £45 if you live anywhere else in the world.

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We offer a 14 day return on all items as standard, by placing an order with Selling Antiques you accept our terms of sales & return policy agaujewellery.com/terms-and-conditions

Description
A custom made Art Deco revival piece Platinum Tanzanite (3.00ct) and Diamond (2.26ct) Cluster Ring. The ring is set with an oval cut Tanzanite (3.00ct) and is super quality with fantastic colour and clarity. The tanzanite is surrounded by a halo cluster of 8 brilliant cut diamonds (20 points) each and 2 larger brilliant cut diamonds (33 points) each set in line with the shank splitting to brilliant cut diamond into 2 sets of 4, totalling (2.26ct).
“
The diamonds are fantastic quality, brilliantly colored white diamonds, this was a custom made piece.
AgAu Jewellery

The ring  has full UK hallmarks for platinum 950. The face of the ring measures 1.9cm width x 1.7cm length and weighs 7.5 grams, the ring size is a UK size N 1/2. The ring is offered in excellent condition.

fig 1. A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging.
fig 1. Platinum Tanzanite (3.00ct) and Diamond (2.26ct) Cluster Ring 7.5g

Metal: Platinum 950

Stones: 1 x Tanzanite (3.00ct), 10 diamonds, totalling (2.26ct),

Ring Face Measurement: 1.9cm width x 1.7cm length

Hallmarks: Hallmarked for Platinum 950.

Ring Size: UK Ring size N 1/2 US size 7.5

Weight: 7.5g

Condition: Excellent Condition

Height
1.7cm (0.67")
Width
1.9cm (0.75")
Depth
2.3cm (0.91")
Date of Manufacture

AgAu Jewellery has dated this Platinum Tanzanite Cluster Ring to the 1960s.

Reference Numbers
Sellingantiques Ref
SA1218779
Dealers Internal Ref
TNP340017
AgAu Jewellery
AgAu Jewellery
Sellingantiques verified Since Apr 2011

If you would prefer to pay via credit/debit card please get in touch via email or phone, thank you

Dealer Profile

You can view the stock and full dealer information on the AgAu Jewellery Profile Page

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A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging.
1 / 12
Archive I A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging.

Platinum Tanzanite (3.00ct) and Diamond (2.26ct) Cluster Ring 7.5g

Archive II A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View II
Archive III A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View III
Archive IV A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View IV
Archive V A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View V
Archive VI A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View VI
Archive VII A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View VII
Archive VIII A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View VIII
Archive IX A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View IX
Archive X A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View X
Archive XI A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View XI
Archive XII A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging. View XII
Enlarged Archival View
AgAu Jewellery

AgAu Jewellery
Telephone 01617 061316
Location
Stockport
Great Manchester
United Kingdom
Dealer Profile Page sellingantiques.co.uk/AgAu
Verified Since Apr 2011
Items For Sale 286
Items Sold 1,900
AgAu Jewellery
AgAu Jewellery
Verified Since Apr 2011
View Dealer Info
Location: Stockport, Great Manchester, United Kingdom
Profile: sellingantiques.co.uk/AgAu
Verified
Apr 2011
For Sale
286
Sold
1,900
A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging.
Platinum Tanzanite (3.00ct) and Diamond (2.26ct) Cluster Ring 7.5g
Ref: SA1218779
A platinum cluster ring featuring a central oval faceted blue-violet tanzanite framed by round brilliant diamonds with millgrain edging.
Detail View 1
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Archival Detail

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Cataloguer’s note

Written by Sellingantiques from the dealer’s photographs and listing
  • ObjectRings
  • Period1940 - 1960
  • StyleArt Deco Revival
  • MaterialPlatinum, Tanzanite, Diamond
  • ColourBlue, Silver
  • MotifsOval central stone, Diamond halo, Millgrain edging, Bezel setting
  • SizeH 1.7 cm (1 in) x W 1.9 cm (1 in) x D 2.3 cm (1 in)

This 1960 Art Deco Revival cluster ring is made from platinum 950 and weighs 7.5 g. The mount holds a central oval cut blue-violet tanzanite weighing 3.00 ct, secured in a bezel setting with millgrain edging. Surrounding the central stone is a halo cluster of ten brilliant cut diamonds totalling 2.26 ct, complemented by full UK hallmarks stamped onto the metal. The ring face measures 1.9 cm wide by 1.7 cm high and 2.3 cm deep. Designed in a UK size N 1/2, the ring is worn on the hand as a statement accessory for formal occasions, evening wear, or everyday personal ornamentation. The piece presents a combination of silver metal tones, blue-violet central colouration, and white diamond brilliance.

FAQs

A tanzanite cluster ring is a piece of fine jewellery featuring a central blue-violet tanzanite gemstone encircled by a frame or halo of smaller accent stones, most commonly diamonds.

High-end cluster rings are predominantly constructed from precious metals such as platinum or 18ct gold, incorporating claw or bezel settings with decorative millgrain detailing to secure the gemstones.

Authentic pieces feature official metal hallmarks indicating platinum purity, alongside tanzanites that display pleochroism, showing different blue and violet hues under varying light sources.

Fine jewellery can be displayed on velvet-lined tray stands, within antique glass vitrines, or placed on marble dressing table organizers to serve as decorative accents when not being worn.

Tanzanite should be cleaned using mild soapy water and a soft brush, avoiding ultrasonic cleaners and extreme thermal shock due to its relative softness compared to diamonds.
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