Nikos Koulis Oui 18kt white gold and enamel ring with diamonds

Mytheresa lists this piece in Canadian dollars, at $10,165. The ≈ figure is our estimate in US dollars, so it can sit beside the prices of retailers who sell in United States directly.

It uses the Bank of Canada’s rate published September 22, 2026: one Canadian dollar is 0.71 US dollars.

Mytheresa sets the final price at checkout, with its own rate and any duties or taxes, so the total may differ slightly.