[Hora1]

its very hard to Se/Refund jewelry

Really? Quite the contrary. Unless we're talking about a 10k diamond ring, as you've mentioned, the missing Item method Is well-suited.

Or DNA since its high value it can happen people steal it in transit or by the door.

This Is Irrelevant- no one knows exactly what's Inside an enclosed package that's In transit, or placed at the doorstep. For all they know, It could contain a silver-plated keychain worth 20$.

What's the precise weight and value of the Item you're planning to SE?

What makes a 10k diamond ring so hard per se? Out of curiosity. As I have absolutely 0 experience with anything relating to jewelry, nevermind buying it.

And what about if I'm trying to acquire a £10,000 Rolex, weight 150-200 grams?

Havent though about rolex etc etc, i guess they make e really long going invenstigation and document before they ship with pictures etc etc. Hard to know