Main Stone Type: Saltwater Akoya Pearl (Freshwater Pearl available upon request - please contact for pricing) Main Stone Details: 8-9mm, AAA Grade - This listing sells only the main ring in the listed gemstone(s) above; other jewelry pieces shown are for styling reference only ...Main Stone Type: Saltwater Akoya Pearl (Freshwater Pearl available upon request - please contact for pricing) Main Stone Details: 8-9mm, AAA Grade - This listing sells only the main ring in the listed gemstone(s) above; other jewelry pieces shown are for styling reference only. Our AAA grade Akoya pearls feature great reflections and lusters, very few to none natural blemishes visible to the naked eye, and soft, glowy pink or silver overtones.