A sapphire/gold/CZ ring was purchased by internet from the Las Vegas store of this company on 26 November 2010. Paid for with Mastercard. Amount, $472. Plus sales tax, when it reached Uk, £67. It was collected from the post office in UK on 23 December 2010. Having worn the ring for less than 1 week, the two CZ (Cubic Zirconia) stones fell out. I contacted the retail dispute dept of the bank and they suggested I contact Landau direct. This I did today. The response I got was this. "You must have caught the stone on something, and furthermore the 'Lifetime Guarantee' does not include the prongs" If you read their web pages regarding the guarantee it does not exclude anything, it merely states Guarantee on it's pieces. If the prongs or claws are not pieces of the ring...what is? Anyway, considering that I did nothing untoward to damage the ring, I hardly think that one week's wear is reasonable! If you let me know your e.mail address I can send photographs of the ring. Many thanks sheila.[protected]@ntlworld.com