Independent assessment, in writing.
Written guidance for buyers, sellers, insurers and private clients — never affiliated with the maisons or retailers.
A focused set of services.
Brand Authentication Opinion
An independent written opinion on whether a piece is consistent with the maison's craftsmanship, hallmarks and documentation.
Buyer Guidance
Pre-purchase confidence for collectors and private buyers considering a piece on the primary or secondary market.
Seller Guidance
Present your piece accurately and credibly when selling, consigning or passing it on.
Insurance & Estate Context
Written context to support insurers, estates and private records. This is an opinion, not an official valuation.
Private Client Consultation
Discreet, independent advice on an individual piece — unaffiliated with any house or retailer.
Six maisons, reviewed in depth.
We deliberately limit our scope so that every assessment is grounded in deep familiarity with each house.
- Cartier
- Van Cleef & Arpels
- Tiffany & Co.
- Bvlgari
- Chopard
- Chanel (Fine Jewellery only)
The right method for each piece.
For certain diamonds and gemstones, we do not offer photo-based online assessments, as no high-value item is suitable without in-person examination to ensure the highest level of accuracy and professional judgement. In these cases, we will let you know and recommend the appropriate next step.
“Each piece deserves the right examination method — and the right photographs rarely tell the whole story of a gemstone.”
Ready for an independent opinion?
Submit your details and we will respond with a written assessment by email within 48 hours.