This Australian opal is held by 14k rose and white gold and 18k yellow gold claws. It sits on a 14k yellow gold band with 14-24k yellow, rose and white gold embedded into it.
To see the difference between small and large stones in rings check out this link.
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