Tiffany Onyx 18k Cufflinks

These are Tiffany & Co. 18k gold and onyx cufflinks.
They have been stored away without being used since purchase. There are minor scratches from storage and some discoloration characteristic of gold. They would likely clean up with polishing, but I've left them as is to avoid any material loss.
The weight (for both cufflinks combined) is 14g, and even excluding the stones, the gold alone is likely around 13.0-13.5g, so they hold significant asset value.
Onyx is said to protect against evil spirits, so they might be good for making a wish.