Diamond jewellery
Graff and Harry Winston
Exceptional single diamonds from the two houses known for the finest stones: D colour, internally flawless, with house and GIA certificates.
Graff and Harry Winston 2 pieces · from €79,000
Diamond jewellery
Graff and Harry Winston
Graff cuts and polishes its own stones in London, and Harry Winston was called the King of Diamonds for the famous stones that passed through his hands. A ring from either house comes with a double certificate: the house document and an independent GIA report for the centre stone.
Authenticity
What comes with every piece
Fine jewellery is bought on trust. This is how we earn it.
- 01
Laboratory certificate
Diamonds from one carat come with a GIA, HRD or IGI report. The report number is laser-engraved on the girdle and can be checked online.
- 02
Gemologist check
Every stone is tested with a diamond tester and examined under a 10x loupe and microscope, and the piece is weighed and measured.
- 03
Brand authenticity
Signed pieces are checked for serial number, hallmarks and workshop marks against the original papers. If you wish, we arrange a service at the brand boutique.
- 04
Insured and discreet
Insured delivery in Finland and Estonia, or a private viewing in the salon. Identity checks follow anti-money-laundering law.