CERTIFICATED NATURAL COLOUR CHANGE SAPPHIRE AND DIAMOND CLUSTER RING set with an oval colour change sapphire 11.6mm long, with accompanying certificate from The Gem and Pearl Lab stating the sapphire to be natural with no evidence of heat treatment, within a wider pierced oval bezel with round diamonds set within millegrain edged settings, marked 750, size L-M, 7.3g
Bidders must assume that diamonds and coloured gem stones (including ruby, emerald, sapphire, peridot, aquamarine) may have undergone a form of treatment unless otherwise stated. It should not be assumed that any diamond or coloured gem is untreated or is natural, unless accompanied by a gemmological laboratory certificate (which would be mentioned in the description). McTear’s will only describe gold/platinum/silver as such when a full UK standard set of hallmarks is present on the object. Other marks such as foreign import stamps will be noted in the description.