Material Sourcing and Trademarking

All pieces are stamped with Disegno's trademark, which is shown either as the full name disegno or by a stylized 'D' shaped like a bullet. Often these stamps are tucked away (such as inside a bail) for visual cleanliness.

All Disegno gems are natural; Disegno never uses synthetic gems, nor simulants.  Disegno prefers untreated gems, however any gem treatments other than heat treatment will be disclosed.  Please understand that some gems are routinely heat-treated (virtually all tanzanites are; virtually all garnets are not) and that heat is accepted by the trade as a treatment not requiring disclosure. It is a permanent treatment done to improve colour and clarity. Contact Disegno for more details.

Disegno uses fine Canadian ethical diamonds whenever possible primarily sourced through B & S (Canada) Inc of the Backes & Strauss Group of Companies, in business since 1789. B & S Caprice® Canadian diamonds come with the CanadaMark™ card from BHP-Billiton. Each diamond is laser engraved with the CanadaMark™ serial number and their brand name Caprice® and a small maple leaf. In addition to a grading certificate from GIA or AGS (for diamonds over 0.50ct+) and the CanadaMark™ card, there is a Caprice® certificate of authenticity proving that the diamond is mined in Canada. B & S provides the following warranty with all its diamonds: "The diamonds herein described or contained in the jewellery herein described have been purchased from legitimate sources not involved in funding conflict and in compliance with United Nations resolutions. The seller hereby guarantees that these diamonds are natural, non-treated, unenhanced and conflict free, based on personal knowledge and/or written guarantees provided by the supplier of these diamonds."

The provenance of non-Canadian diamonds can not be confirmed. Disegno prefers diamonds accompanied by a certificate from a recognized gemmological laboratory, such as GIA. However, small accents diamonds are usually not accompanied by certification.

Precious metals are provided by Disegno's preferred casting company in Montreal, Canada. The provenance of the metal can not be confirmed and may come from a variety of sources, including recycled.

'Argentium'® 'the finest silver', are trademarks of the Argentium Silver Guild (UK), which guarantees traceability of its raw silver.  It certifies that Argentium is produced using only recycled silver.