Adam's FINE JEWELLERY & WATCHES 16 May 2023

T uesday 16 th M ay 2023 . S tarting at 4 pm 96 137 A PAIR OF SAPPHIRE, DIAMOND AND TITANIUM EARRINGS, BY MARGHERITA BURGENER Each stylised flowerhead, set with a circular-cut pink sapphire at the centre, the green titanium petals highlighted with brilliant-cut diamond pistils, mounted in 18K gold and green titanium, with maker’s mark‘MB’for Margherita Burgener,Italian registry mark,with maker’s case, length 4.8cm € 2,800 - 3,200 138 AN EMERALD AND DIAMOND DRESS RING Of‘Toi et Moi’ design, set with a pear-shaped emerald weighing ap- proximately 2.10cts and a marquise-cut diamond weighing approx- imately 1.20ct, the gallery pavé-set with brilliant-cut diamonds weighing approximately 1.00ct total, mounted in green 16K gold, ring size K € 7,000 - 8,000 139 A SAPPHIRE AND DIAMOND DRESS RING Composed of fancy-cut pink sapphire, each within a surround pavé-set with brilliant-cut diamonds, with similarly-cut diamond accents and shoulders, mounted in 18K rose gold, ring size K¼ € 1,200 - 1,800 140 A PAIR OF PINK SAPPHIRE EARSTUDS Each circular bombé plaque, pavé-set with circular-cut pink sapphires throughout, mounted in 18K gold, sapphires 2.52cts total, French assay marks, accompanied with copy of invoice from Hervé Colon, with maker’s case, length 1.3cm € 700 - 900 141 A GEM-SET AND DIAMOND COCKTAIL RING The central oval-shaped opal cabochon weighing approximately 6.50cts, within a brilliant-cut diamond frame, to a further pear- shaped pink sapphire and baguette-cut tsavorite surround and similarly-cut diamond shoulders, mounted in 18K rose gold, ring size M½ € 1,800 - 2,200 142 A PAIR OF DIAMOND AND TITANIUM EARRINGS, BY MARGHERITA BURGENER Each designed as an undulating petal highlighted with brilliant-cut diamonds, mounted in 18K gold and green titanium, signed Margherita Burgener,with maker’s mark‘MB’, Italian registry mark,with maker’s case, length 2.3cm € 1,500 - 2,000