The sizes of cultured Akoya pearls range from 2 to 10mm. The larger the pearl, the rarer and more valuable it is. The average size of pearl necklaces sold today is 6.5-7mm, 7-7.5mm, and 7.5-8mm.

6-6.5mm pearl necklace: Ideal for young or petite women. Young women in the work force can accent their beauty with a simple 6-6.5mm choker.

6.5-7mm pearl necklace: It gives a delicate look. The size is neither too big nor too small. Ideal for young or petite women.

7-7.5mm pearl necklace: It is about the central size for Akoya pearls. 7-7.5mm is the most popular among all sizes of pearls. Appropriate for most women. Ideal for weddings, birthdays, anniversaries, Mother's Day presents, college graduations, and Valentine's Day gifts.

7.5-8mm pearl necklace: An impressive size. Suited to career women or those who prefer slightly larger pearls. . Since 8-8.5mm pearls start to jump in price dramatically, 7.5-8mm pearls are the best buy if you want to have both impressive size and low price. A popular necklace for birthdays, anniversaries, Mother's Day presents, or any other important occasions.

8-8.5mm pearl necklace: It is the most popular size between 8-10mm. It is impressive, extraordinary, and valuable. Pearls over 8mm are rare and difficult to harvest, therefore they increase in price significantly for just one size up. 8-8.5mm is ideal for an anniversary or an important birthday.

8.5-9mm pearl necklace: Those who look for a gorgeous accessory will find satisfaction in a 8.5-9mm pearl necklace. It is a symbol of luxury, power and success. Ideal for an important anniversary, birthday, or special event. Pearls over 8.5mm grow in water longer than smaller pearls, therefore they are very difficult to harvest. They have great value for investing, as their value will be appreciate over time.

9-9.5mm and up pearl necklace: Ideal for women who are looking for large, exquisite pearls, and who considers herself unique, important, and sophisticated. Quality 9-9.5mm Akoya pearls are extremely rare and valuable. Tahitians and South Seas can also be found in this size (and larger!). They, too, are rare and extremely stunning. Multi-colored and black Tahitians in this size are breathtaking, as are the larger South Seas. A golden South Sea in this size is one of the rarest, loveliest necklaces in the world.