Pearl Sizes

A common inquiry among customers is "What's the size of the pearl?" or "Will it be what I expected?" We've put together a quick guide for you so you won't have to wonder.

For Quick Reference: 1/4 inch = 6.35mm | 1/3 inch = 8.46 mm | 1/2 inch = 12.7mm | 1 inch = 25.4mm

SIZE OF FRESHWATER PEARLS

Freshwater Pearl Size

Freshwater pearls can grow up to about 11.0mm to 12.0mm. In common terms, while they can occasionally grow to almost half an inch in diameter, most freshwater pearls sold are between about a quarter of an inch and a third of an inch in size. Very tiny pearls are also seen. 

SIZE OF GOLDEN SOUTH SEA PEARLS

Golden South Sea Pearls Size

Golden South Sea Pearls are usually between 9.0mm and 20.0mm in size. The larger the size the harder it is to find high-quality pearls. The average size of South Sea pearls are  about 13.0mm, which is just over half an inch in diameter.

SIZE OF TAHITIAN PEARLS

Tahitian Pearl Sizes

Tahitian pearls are usually between 8mm and 16mm in size. That means they are larger than the classic small white pearls but don't grow quite as large as the huge South Sea pearls do. Think of pearls between one-third of an inch and two-thirds of an inch in diameter. They are distinguished by their natural dark color.

SIZE OF AKOYA PEARLS

Size of Akoya Pearls

Akoya pearls are small as they grow in a small size oyster. They can grow up to about 9mm or just over a third of an inch in size. The most popular sizes are around 7mm or 8mm. 6.0-6.5mm pearls (about a quarter of an inch) are often considered appropriate for very young or very slender ladies who like a dainty look. Slightly larger pearls tend to look better on a more mature woman who wants a more sophisticated look. If in doubt, most women would prefer the pearls a size larger than a size smaller. And yes, even a half a millimeter make a difference.

SIZE OF WHITE SOUTH SEA PEARLS

Size of White South Sea Pearls

White South Sea pearls grow in very large molluscs so can grow anywhere between 9mm (just over a third of an inch) and a whopping 20mm (over three-quarters of an inch) in size. Prices go up steeply with size, as the largest ones are extremely rare.