This opal is held by 14k rose and white gold, 18k yellow gold claws. It sits on a 14k rose gold band
To see the difference between small and large stones in rings check out this link: https://varianceobjects.com/blogs/news/ring-stone-sizing
The stone measures 7.5mmx5.4mm
This ring is currently a size 6.5 but it can be resized at no additional cost. If you need the ring resized, there is a place to leave a note once the ring is added to cart.