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Old Cut Diamond Line Brooch

6.08ct Diamond and Platinum Bar Brooch - Antique French Circa 1910

A stunning, fine and impressive antique 6.08 carat diamond and platinum, 18 carat rose gold set bar brooch; part of our antique jewellery and estate jewelry collections

SKU C5830


This stunning, fine and impressive antique brooch has been crafted in platinum with an 18ct yellow gold fastening.

The subtly tapering linear setting displays three stunning feature Old European cut diamonds to the centre, accented with fifteen pavé set Old European round cut diamonds graduating in size.

This antique brooch secures to the reverse with an 18ct yellow gold hinged pin and safety catch.

The stunning antique diamond brooch has been hallmarked to the pin with the French mark for 18ct gold (eagle's head) and maker's mark, and the side of the setting bears the French mark for platinum (dog's head).

This impressive antique diamond bar brooch is supplied with three independent diamond grading report certificates for the feature stones, in addition to an independent diamond grading report card for the supporting stones.

Such bar brooches with larger set diamonds are becoming increasingly difficult to locate.

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 within this stunning piece of antique jewellery.

This impressive antique diamond bar brooch is excellent quality, set with stunning diamonds displaying a fine white colour, brilliance and presence.

The brooch is an excellent gauge of platinum and gold and is in excellent condition, with clear French hallmarks to the pin and setting.

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

Feature Diamond One

Colour G

Clarity P1

Cut Old European

Content 0.42 carat

Dimensions 5.04mm x 4.24mm x 2.31mm

Feature Diamond Two

Colour G

Clarity SI2

Cut Old European

Content 0.39 carat

Dimensions 4.91mm x 4.35mm x 2.37mm

Feature Diamond Three

Colour H

Clarity P1

Cut Old European

Content 0.52 carat

Dimensions 5.11mm x 4.40mm x 3.15mm

Supporting Diamonds

Colour (average grades) I/J

Clarity (average grades) SI2/P1

Cut Old European

Content 4.75 carats

Total Diamond Content

6.08 carats

Length of setting 8.6cm/3.39"

Width of setting 5.16mm/0.2"

Across pin 8.2mm/0.32"

Height of setting 3.51mm/0.14"

8.21 grams

Proud Members of

International Federation of Art and Antique Dealer Associations CINOA
National Association of Jewellery UK's trade association NAJ