Calderoni has been a leading player in the sale of diamonds and precious stones for over 200 years.
Every product is accompanied by an international gemological certificate. The diamonds are carefully selected by the Maison’s highly qualified staff. Each order is guaranteed by a safe custody service and an anti-counterfeiting seal. Calderoni’s reliability and professionalism ensure the safe purchase of the world’s most precious stone: the diamond.
The price list for our certified diamonds is transparent and easy to understand. Diamond prices are calculated based on the Rapaport Diamond Report, adjusted to account for the USD/EUR exchange rate plus commission and VAT.
The Rapaport Diamond Report is the primary source of diamond prices and diamondmarket information. Diamond prices are published weekly on the website, based on the carat, shape, colour and clarity of the gems.
DIAMOND IN BLISTER PACKS
Mark life's most important occasions; celebrate a birth, christening, holy communion, confirmation, anniversary or graduation with a truly unforgettable gift. Calderoni’s diamonds in blister packs are a unique choice. Discover the features of a Calderoni diamond, guaranteed by the very best safety and anti-counterfeiting technology. Each diamond is stored in a special CertiCard® case, which instantly detects any attempt to open any part of the case. The product’s authenticity and integrity are guaranteed from the time of sealing.Find out more
An added advantage to choosing Calderoni is that customers may replace any diamond purchased with a carat weight of 0.30 or more with a stone of a higher value.
Calderoni diamonds are certified by leading international gemological institutes, guaranteeing the authenticity of each individual stone and related features.
ENGRAVING the diamond
Every diamond is unique:the Certification Code is engraved on the girdle of every stone with a carat weight of 0.30 or more.
Diamonds are as valuable to you as they are to us. Calderoni offers a free “All Risks” insurance policy issued by a leading insurance company for every single diamond with a carat weight of 0.30 or more. The insurance policy on Calderoni certified diamonds has a 2-year duration, and is only valid in Italy.
Calderoni offers after 5 years from the date of purchase, the diamonds setting service on Calderoni production rings.
- * All the above services apply to the purchase of Calderoni diamonds with a carat weight of 0.30 or more.
- * • For diamonds with a carat weight of up to 0.29, the Maison offers its blister packs and the Calderoni Gemological Certificates.