Comes with official valuation dated 14/5/2016 by a registered National Council of Jewellery Valuer for $2500 Australian Dollars. The yellow gold ring is set with a total of 57 single cut diamonds, Colour I/J, Clarity SI/P1 with an est combined weight of 0.57cts. The ring weighs 4.1 grams & is English ring size O. Use the following link to convert to other world ring sizes. http://www.onlineconversion.com/ring_size.htm FREE postage within Australia which includes, tracking, insurance & registered.