"Q. What size Ring was used in the movie when we saw it worn on the neckchain?
This was a size 11 ring in 18 carat yellow gold.
It weighs approximately 19 grams (more than 1/2 oz.), is 2.7mm thick through the band and measures about 7mm tall (just over 1/4 inch) when laid on its side. The gold in the Ring came from the leading New Zealand precious metals supplier.
Q. What length was the silver neck chain that the Ring was worn on in the movie?
This was a 65cm long 925 sterling silver chain chosen and supplied by Jens Hansen - Gold & Silversmith."
*** Don't forget to buy the chain, it's excellent. (that's me talking now, not them).