The mollusk, that' s oyster to you and me, opens its shell to pass fresh water over its interior, get oxygen and snag tiny bits of food. Sometimes what it snags is a grain of sand or piece of shell. If the mollusk can't get rid of the bit of grit it begins to coat it with a substance it produces called nacre. Coating the grain of sand makes it less irritating. As time passes the grain is coated with many layers of nacre. Eventually you end up with a lustrous pearl.
Not all pearls are gem quality. The pearl can be lopsided, have an irregular surface, or the coloring of the pearl is grayish instead of white with a rosy pink cast. The luster of the pearl can be lacking as well and instead of glistening the surface is dull and flat. If the irregularity or flaw is only on one side and the pearl looks good otherwise it can be set in jewelry with the flaw at the back of the piece where it won't be noticed.
Pearls can be from fresh water or salt water mollusks. Salt water is more expensive. Pearls from fresh water mollusks are more varied in color in shades of pink, purple, yellow, and peach.
Colors range from white, yellow, pink, to gray. South Sea Pearls, sometimes called Tahitian pearls, are some of the most expensive pearls. They are larger, because the mollusk is larger, and the colors are iridescent black, purple, and dark gray as well as standard light pearl colors. The Tahitian black pearl is stunning as the rainbow flashes play off the dark pearl surface.
Natural pearls are very expensive and difficult to find in jewelry since the Japanese began culturing pearls. Cultured pearls are simply oysters in an oyster bed that has been seeded with a nucleus. The nucleus can be a bit of mother of pearl, a tiny seed pearl or a grain of sand.
Good cultured pearls have been left in the oyster over several years to build up layers of the pearl. Cheap cultured pearls start with a much bigger seed core and then are left in the oyster only long enough to gather a few layers. Those layers can easily wear off.
When you're looking to purchase pearl jewelry keep in mind that fine pearl jewelry requires that the pearls be matched on color and luster so they look like they belong together. Or the design of the piece should play off the different colors. Necklaces and bracelets can be strung with pearl of a uniform size, all approximately the same. Necklaces are often graduated with the larger pearls in front gradually reducing in size as the reach the back clasp.
The value of a pearl is based on 5 factors: cleanliness, shape, luster and orient, and color.
Where Do Pearls Come From
Freshwater pearls are a kind of stone that comes from freshwater mussels. They are produced in Japan, China, and the United States. They are often used in jewellery and are also crushed to make cosmetic paints. Pearl is valued as a gemstone and is cultivated or harvested for jewellry. The unique lustre of pearls depends upon the reflection and refraction of light from the translucent layers. The iridescence (that is, where the hue changes according to the angle from which the surface is viewed) that some pearls display is caused by the overlapping of successive layers, which breaks up light falling on the surface. They come in various pastel shades of pink, peach, lavender, white, black, plum, and tangerine, depending on the type of mussel.
A single mussel can produce up to 50 pearls. Natural pearls are seldom perfectly round or even nearly round, more often than not they are of irregular, elongated shapes. Although white is the most common colour of freshwater pearls, the most desirable (and therefore the most expensive) are the pastel pinks, roses, lavenders, and purples. The different colours are a function of the mussel species, genetics, water quality, and the position of the pearl in the shell.
Black pearls, frequently referred to as Black Tahitian Pearls, are highly valued because of their rarity; the culturing process for them means a smaller volume output from each mussel and thus they are never found in mass numbers.
Freshwater pearls are exceptionally popular for use in jewellery, and genuine pearls, as opposed to fake ones, will attract a high price regardless of location in the world. However, in some countries, where pearls are not locally produced, prices are on average higher than those of Japan, China, and the United States.
Regardless of the type, they all look spectacular in necklaces, bracelets, pendants, and rings. As opposed to diamonds and other gemstones, pearls are typically larger, heavier, and more visible, with the stunning iridescence of the pearl attracting the eye. these stones can be purchased both online and in retails stores worldwide.
But where do they come from and how are they made? Pearls are made by placing a nuclei of a pearl inside a live oyster, and returning three to sex years later to harvest to the full pearl. The nucleus is generally a polished bead made from mussel shell. Along with a small scrap of mantle tissue from another oyster to serve as an irritant, it is surgically implanted near the oyster's genitals. Oysters which survive the subsequent surgery to remove the finished pearl are often implanted with a new, larger nucleus as part of the same procedure and then returned to the water for another three years of growth.
Now that you know where these stones come from, you may look at them differently than you did before.
There is lots of jewellery makers out there using them, so go have a look.
Both Dee Power & Hayden Branston are contributors for EditorialToday. The above articles have been edited for relevancy and timeliness. All write-ups, reviews, tips and guides published by EditorialToday.com and its partners or affiliates are for informational purposes only. They should not be used for any legal or any other type of advice. We do not endorse any author, contributor, writer or article posted by our team.
Dee Power has sinced written about articles on various topics from Credit Cards, Sales and Negotiation and Business Plan. Dee Power is the author of several nonfiction books and loves She also loves to garden, and uses many of the
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