This is a pair of fine, A-quality Akoya pearls in 9-9.5mm. Due to recent akoya mollusk deaths and supply issues, this size has become quite rare especially in high qualities such as what Moline offers. 
 
This pair is priced set in 18K gold studs of your color choice including 7mm friction backs, but to purchase loose please get in touch. 
 
This pair is a one off that was purchased at a lower price point before much of the scarcity issue in large akoya, so it is being offered with those savings passed along to you.