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Art Deco 15ct Gold & Platinum Brooch set with Natural Sapphires & Rubies

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A striking 15ct gold brooch with a platinum top that was made circa 1920. It has been set with three well matched Royal blue sapphires that are most likely of Burma origin with rubies in between. In between the rubies and sapphires are small diamonds. This brooch has good millgrain detail on the platinum. This is when the edges of the metal have been worked with a knurling tool to produce tiny beads, hence the French name “millgrain”, meaning a thousand beads. It is a very smart and stylish brooch to wear.

Written by Olly Gerrish


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Ollys Pick

Beautiful natural unheated stones in this brooch

Date & Origin






GoldPlatinum DiamondRubySapphire


Unmarked, tested to 15ct gold & platinum


Length 5cm
Sapphires approx total weight 2 carats
Rubies approx total weight 1 carat
Diamonds approx total weight 16 points

Item Number


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