Brooch with engraved layered agate '3 swans',

Brooch with graved layered agate '3 Swans', oval, ap. 30 x 22 mm, 10 brillliant cut diamonds, totalling ap. 0.15 ct, good colour and clarity, 18K yellow gold, 8.1 g, L x W: 36 x 23 mm, 20th century, minimal signs of wear, handcrafted.