11.21Ct Diamond and Platinum Brooch - Art Deco Style - Antique Circa 1920

Buyer Protection Guaranteed


A stunning, fine and impressive 11.21 carat diamond and platinum brooch in the Art Deco style; part of our diverse antique diamond jewellery collection

This stunning Art Deco brooch has been crafted in platinum.

The pierced decorated Art Deco style design is embellished with one hundred and forty-four claw set, Dutch cut diamonds displayed within concentric ring designs.

The pierced decorated frame features a central 0.63ct Old European cut diamond, flanked by six further Old European cut diamonds displayed in a horizontal fashion to the centre of the impressive brooch.

A further fourteen Old European cut diamonds ornament the upper and lower borders.

The symmetrical brooch terminals are accented with seven Old European cut diamonds to the outer concentric designs.

The brooch secures to the reverse with a hinged pin and safety catch arrangement.

This antique brooch is fitted to the original hinged leatherette presentation case which has a satin and velvet lined interior.

A contemporary AC Silver gift box in either black or brown may be provided if so desired.

This brooch is supplied with an independent diamond grading report card.

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

Diamond Quality

Feature Diamond

Color H
Clarity VS 2
Cut Old European
Content 0.63 carat
Dimensions 5.36mm x 5.22mm x 3.69mm

Supporting Diamonds

Color (average grades) I
Clarity (average grades) SI 2 - P 2
Cut Old European/Dutch
Content (total) 10.58 carats

Total Diamond Content

11.21 carats


Length 6.2cm / 2.44"
Width 3.30cm / 1.29"
Height 3.64mm / 0.14"

Date: Circa 1920

Video: A video of this fine piece is available upon request

Reflections in photographs may detract from the true representation of this stunning example of Art Deco jewelry/jewelry.

AC Silver item Ref. SKU: W9540
Of the Period
Art Deco
Date of Manufacture
Circa 1920
Excellent. This original 1920s Art Deco style brooch is set with very high color graded old cut diamonds. The brooch is in excellent condition. The original presentation case is in excellent condition; the retailer's mark is worn in keeping with age..
1.29 in. W x 2.44 in. L
3 cm W x 6 cm L
2.44 in. (6 cm)
Dealer Location
Jesmond, United Kingdom
Number of Items
Reference Number
About The Seller
AC Silver
35B St Georges Terrace
Jesmond Newcastle Upon Tyne NE2 2SU
+44 3333441849
1stdibs Dealer since 2015 Located in Jesmond, Newcastle Upon Tyne