At Keyamour we take pride in offering correct information and quality, collectible antique pieces. We use our expertise in the business to date items to the best of our knowledge. Dates are not exact, but meant to convey the correct time period an item was made. Unless stated as weighed, diamond weights are approximate, and measured in the setting using industry standard mathematical formulas. Unless accompanied by a certificate from a lab (like GIA) diamond colors are graded in the mounting by qualified individuals. We make every attempt to only show users correct information. From time to time, system glitches might alter web settings. Sometimes items sell before the website has been updated, should this occur we will contact you. Should a mistake in price occur, we reserve the right to correct any incorrect pricing and will not honor incorrect pricing.