French Art Nouveau Carved Agate, Ruby & Diamond Flower Brooch queen anne and the demantoid garnet displays

and the demantoid garnet displays the typical vivid green and strong fire associated with these rare gemstones

protecting their nest

English hallmarks (partially rubbed)

70ct Brilliant Cut Diamonds - H/I colour

Partial Makers Marks

French Art Nouveau Carved Agate, Ruby & Diamond Flower Brooch queen anne and the demantoid garnet displaysDATE: Art Nouveau, c. 1910 Wonderful antique Art Nouveau brooch dating from early 20th century France. Modelled as a flower, it's carefully carved from agate, each with fine engraving creating realistic details. It's set with a diamond cluster centre, and very typically Art Nouveau, the diamond set stem that swoops up to the head of the flower, with a ruby cabochon and carved agate leaf. Crafted in 18k yellow gold and platinum. STONES Carved Agate