8.64ct Boulder Opal and 3.00ct Diamond, Platinum Brooch - Antique Circa 1900

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

The brooch is ornamented to the centre with a feature claw set 8.64ct cabochon cut boulder opal.

The stunning cabochon opal is encircled by twenty-six pavé set diamonds, in a combination of Old European and eight cut, totalling 1.80cts.

The impressive antique brooch is ornamented with a 0.65ct and 0.55ct Old European cut diamond, each individually millegrain decorated collet set to either end, completing the design.

The brooch secures to the reverse with a hinged pin and clasp.

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

This impressive antique opal brooch is supplied with an IDGL diamond and gemstone grading report card.

This stunning boulder opal brooch is the finest of its type you could hope to acquire.

This boulder opal brooch with diamonds is highly prized for the vibrant flashes of colour running through the stones natural ironstone matrix, making it completely unique and particularly appealing to collectors and lovers of unusual jewellery. Its rarity, craftsmanship, and striking appearance also give it strong heirloom appeal, making it ideal for someone who appreciates jewellery with both artistic character and lasting value.

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 opal and diamond brooch.

View our collection of Victorian brooches

Date: Circa 1900

This impressive antique opal brooch is exceptional quality, set with a stunning feature boulder opal displaying a scintillating play of colour and presence.

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

The supporting diamonds display a fine white colour and brilliance.

The brooch is an exceptional gauge of platinum and is in exceptional condition.

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

Type Boulder

Cut Oval Cabochon

Content 8.64 carats

Dimensions 17.31mm (length) x 15.01mm (width) x 5.27mm (depth)

Feature Diamond One

Colour I

Clarity SI2

Cut Old European

Content 0.65 carat

Dimensions 5.22mm (length) x 5.19mm (width) x 3.23mm (depth)

Feature Diamond Two

Colour I

Clarity VS2

Cut Old European

Content 0.55 carat

Dimensions 5.11mm (length) x 5.09mm (width) x 3.05mm (depth)

Supporting Diamonds

Colour (average grades) H

Clarity (average grades) SI2

Cut Old European/Eight

Content 1.80 carats

Total Diamond Content

3.00 carats

Number of Diamonds

28

Length of setting 3.7cm/1.46"

Width of setting 1.8cm/0.71"

Across pin 3.2cm/1.26"

Height of setting 6.85mm/0.27"

6.14 grams