Pearls are very unique among gemstones in that they are natural, organic products of living creatures, so they have different grading standards. NewZealandPearl.co.nz is one of the largest wholesalers of top quality pearls in New Zealand. With this in mind, to help our customers make correct decisions and to understand the pearls more when they buy pearls from us, we have this page set up to educate our customers about pearls and answer most common questions about pearls.
Lustre is the shine that gives pearls their beauty and is an important factor in identifying quality. Lustre refers to the pearls brilliance – the way its surface reflects light, and to its inner glow – how it refracts light from the layers of nacre within. Pearls with low lustre appear chalky, yellow or dull. Whereas the lustre of good quality pearls is sharp and bright.
Pearls develop into various shapes. Round pearls are the rarest and command the highest prices. The term ’round’ does not mean spherical like a marble but the pearls should not be obviously oval or flattened to the naked eye. Baroque pearls are not symmetrical in shape, and can be lustrous and appealing, but will typically cost less than round pearls.
Pearls are created in the ocean by a wild oyster and nature almost always leaves its mark, it is extremely rare to find a perfect pearl. The cleaner the surface of the pearl, the more valuable it is. Unacceptable faults include cracks or holes in the surface or thin and flaking nacre will results in the quality of the pearl being very low. Notice how the clean surface pearls, highest quality pearls have a sharp, mirror-like reflection.
Pearl size is measured in terms of its diameter. The size of pearl is important because larger pearls are harder to find. As the pearl size increases, its range also raises high. Difference in size could raise the price by 200 percent.