Adam's Fine Jewellery & Watches Tuesday May 14th 2019

91 152 A PAIR OF CITRINE AND DIAMOND PENDENT EARRINGS, BY MARGHERITA BURGENER Each set with a circular citrine cabochon within a surround of round brilliant-cut diamonds, suspending a pear-shaped citrine drop accented with a similarly-cut diamond accent, mounted in 18K gold, diamonds 0.78ct total, citrines 50.05cts total, signed Margherita Burgener, Italian assay marks, maker’s case, length 4.2cm € 1,800 - 2,200 153 A GEM-SET AND DIAMOND BANGLE Of openwork design, set to the front with alternating heart-shaped cabochon amethysts, citrines and peridots between a brilliant-cut diamond border, the reverse highlighted with openwork heart-shaped gold elements, mounted in gold, diamonds approximately 2.50cts total, inner diameter 5.6cm € 2,500 - 3,500 154 AN EMERALD AND DIAMOND COCKTAIL RING, BY ENIGMA Of bombé design, composed of a circular-cut emerald sugarloaf, within a surround of round brilliant-cut diamonds, mounted in 18K gold, signed Enigma, diamonds approximately 1.00cts total, emeralds approximately 2.50cts total, Italian assay marks, with maker’s pouch, ring size L € 3,000 - 4,000