This opal is held by 14k yellow gold claws.
The 5mm cigar band is made of 14k, 18, 22k and 24k yellow gold.
This band measures 5mm x 1mm.
To see the difference between small and large stones in rings check out this link.
The stone measures 21.8mmx16.7mm.
This ring is currently a size 6 but it can be resized at no additional cost. Once the ring is added to cart, there is a place to leave a note for resizing.