Beschreibung:

A NATURAL PEARL AND DIAMOND NECKLACE
A NATURAL PEARL AND DIAMOND NECKLACE Comprising thirty-one white round natural pearls measuring approximately 9.8 to 19.0 mm, spaced by white and grey seed pearls, each flanked by brilliant-cut diamond roundels, terminating in a cream natural pearl drop measuring 9.8 x 9.9 mm and a grey natural pearl drop measuring 9.4 x 9.4 mm, joined by a cushion-shaped diamond bail, within a brilliant-cut diamond surround, mounted in 18k white and oxidized gold, 63.0 cm long Accompanied by report no. 59541 dated 14 June 2011 from the SSEF Swiss Gemmological Institute stating that the analysed properties confirm the authenticity of these thirty-one non-nacreous saltwater natural pearls from a marine mollusc; also accompanied by an appendix stating that the thirty-one natural pearls possess extraordinary characteristics and merit special mention and appreciation. The described pearls exhibit a matching shape. They are regularly graduated in size, with the central pearl showing an impressive diameter. They show a matching colour subtly varying from white to slightly cream and partly with a fine to distinct flame structure. The natural pearls are all non-nacreous. They were thus formed in a mollusc that produces no mother-of-pearl, but forms a shell consisting of densely interwoven tiny calcium-carbonate fibres. It is this fine texture of fibres, which leads to the delicate flame-type structures that can be seen on most of these pearls. In many of the pearls, the flame structure radiates from a central spot at the top of the pearl. This results in a very attractive reflection effect similar to chatoyancy (cat's eye effect), combined in few pearls with overtones of iridescence colours. The combination of trace elements found in these pearls is characteristic for non-nacreous pearls originating from saltwater molluscs. Assembling such a collection of non-nacreous natural pearls of this quality represents an exceptional treasure Report no. 17479833 dated 25 August 2008 from the Gemological Institute of America stating that two pearls are natural saltwater. The tested pearls show no indication of treatment