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The value of a pearl is determined by its Lustre, Surface, Shape, color and Size.

Lustre

Lustre is the most important factor in choosing pearls. The inner glow of the pearl combined with the surface brilliance defines lustre. The higher the lustre, the thicker the nacre or secretion from the oyster and the stronger the glow. Lower quality cultured pearls appear too white, dull or chalky. 

Surface

The smoothness of the pearl's surface, from clean to heavily blemished, is the next consideration. Cracks or breaks in the nacre are considered damage. Because pearls are grown in an oyster and are organic gems they are almost never flawless. The gem-quality pearl may have minute blemishes when examined very closely, but they are not noticeable at arm's length.

Shape

Similarly, it is very rare to find a perfectly round pearl. The rounder the pearl, however, the more valuable it is. Slightly off-round, semi-baroque and baroque pearls are not as valuable as perfectly round pearls, however, they can be lustrous and appealing and have a natural beauty and value of their own.

Color

Cultured pearls range in color from white to black with various mult-colored overtones. The color of the pearl is really the wearer's preference. 

Size

Cultured pearls are measured in millimeters. All other factors being equal, the larger the pearl the rarer and more valuable it is. 

Cultured pearl vs. Shell based pearl

A cultured pearl is an organic gem. This means that it was produced by a living organism, generally an oyster or a mussel. It is produced by placing a bead inside the oyster. The oyster then coats the bead (with nacre) to produce the pearl.

A shell based pearl is an imitation. It is made by painting a shell bead with pearl paint. Be careful of brand named shell based pearls, these sometimes appear to be cultured pearls, but are only imitation.

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The Geohavens name is an assurance of timeless beauty, distinct quality and uncompromising value. The Company spares no effort in sourcing from the farthest markets and the deepest mines in order to unearth the most attractive gems.

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