Primary-source preference
For current specifications, warranty coverage, care and service, use the relevant brand's official product page, manual, boutique or service centre. For customs and consumer-protection questions, use the government authority responsible for the country involved. For gem identity, use a recognised gem laboratory and verify the report directly.
No paid ranking claims
The site does not promise investment returns or rank products as guaranteed stores of value. Where resale is discussed, we distinguish asking price from completed transactions and point out transaction costs and uncertainty. Any commercial relationships or sponsored work should be clearly disclosed before publication.
Authentication is specialist work
No single serial, date code, certificate, logo, stitch count, box or online tool can authenticate every product. We provide buyer questions and risk reduction, not authentication certificates. High-value purchases deserve examination by a qualified independent specialist and written seller protections.
Living information
Prices, availability, designs, warranties, tax rules and import procedures change by market. We intentionally avoid presenting stale rate tables as current advice. Follow the linked official source and check its date before relying on it.
Corrections
When a factual claim is found to be wrong or out of date, it should be corrected promptly and the page reviewed. Product-specific content should be refreshed against official material before major buying seasons or policy changes.