18K White Gold Ring Stamp: Palladium & Nickel-Free Options

Question
QUESTION: What stamp should I put on 18K white gold ring with Palladium 10%?

ANSWER: Greetings,
The stamp would be
750 or 18K or 18ct or 18 carat.....

Good Luck, P

---------- FOLLOW-UP ----------

QUESTION: Yes, but I want to show that my jewelry is totally nickel free with palladium, was thinking something like "18K Pd" or "18K NF". Any suggestion?

Answer
Hello Again,

Strictly speaking it can only say that it is 18K in any form you choose. However, you can put whatever you like on your works - the Only issue I can see is in the future when it may be assayed or valued and unless you are known for what you are suggesting, then it may create confusion and possibly devalue the piece if it is deemed to be misleading.
Personally I would simply tell everyone about the formula and give them a certificate that states this.

Hope this is of help.
Cheers, P