Posts Tagged ‘pearls’
June 26th, 2011
Wouldn’t it be nice to find real pearls from edible oysters? That would be the day when eating edible oysters would bring in not only food for the table but also pearl for jewelry. However, such thing is next to impossible considering that pearls do not grow in edible oysters.
Pearls are produced by mollusks including oysters, mussels and clams. However, mussels and clams rarely produce pearls while oysters commonly produce pearls no matter if they are in freshwater or in saltwater.
The idea that pearls are produced from sand intruding into the shell of an oyster is false. Sand is an inorganic material while pearls are formed by organic materials that are caught inside the oyster. As a defense mechanism, the oyster wraps the organic material with a substance called nacre, resulting to what is known as mother of pearl.
Most people believe that pearls should have an imperfect form since they are products of nature. However, there are those that are formed perfectly and these are considered very valuable pearls. Unlike the common belief that pearls are usually white, pearls come in various colors like black, green, red and even blue. Different-colored pearls can be found all over the world but only the South Pacific has produced black pearls.
Instead of waiting for the natural occurrence of pearls, there are people who culture pearls in the same manner that they are naturally formed. However, the organic irritants are intentionally inserted through a crack in the oyster’s shell. Natural pearls are however more expensive than cultured pearls because of their rarity.
Among the kinds of pearls are cultured pearls either in saltwater or freshwater; South Sea pearls that are produced by the silver lipped oysters are rare pearls that are cultured in Australia and are usually very large; South Sea pearls produced by golden lipped oysters and are cultured in Indonesia and Tahitian pearls or black pearls that are produced by black lipped oysters and are cultured in Cook Islands or in the French Polynesia.
So how can one determine if a pearl is real or an imitation? Real pearls tend to feel sandy when rubbed along the edge of the front teeth while imitation pearls fell smooth.
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June 8th, 2011
“The only real failure in life is one not learned from.”
Anthony J. D’Angelo, The College Blue Book
Ah, graduation. A lot of hard work, time, talent, money and drive have led to this point: a milestone that will be celebrated, photographed and remembered forever. Whether from high school, college, law school, medical school, or what have you, graduation is a wonderful time of excitement and change.
How to mark the occasion? You can always write a check. (What new graduate doesn’t need money?) Before you whip out your wallet, however, remember that cash is practical, yet very impersonal. Because you’re reading this, it’s a good guess that the graduate is a special woman in your life, she worked hard to get where she is, and she deserves a graduation gift that is truly memorable.
How about something memorable, practical, meaningful and beautiful? Try pearls.
Pearl jewelry—whether pearl studs, a pearl pendant or a beautiful pearl strand—is a classic and wonderful addition to any woman’s jewelry box. Whether she’s heading off to college, interviewing for jobs, about to embark on a career, or planning a wedding, the recent graduate can wear pearl jewelry for instant polish. Added bonus: She’ll remember you every time she wears them.
Which pearls to choose
Pearls come in many beautiful styles, shapes and designs, but for graduation, a simple classic style that will stand the test of time is best. (They don’t call them staples for nothing.) Because classic pearls are so popular, there are a variety of options from which to choose. The following are classics she’ll reach for again and again.
• Pearl stud earrings: The great thing about pearl studs is that they go with everything. Round, white pearls with a rosé overtone flatter most skin types, and make a wonderful addition to any jewelry box. Some stores even carry pearl studs for non-pierced ears.
• 16 inch pearl strand: A matched pearl strand is a jewelry staple for a reason: it’s a classic—not to mention a no-brainer accessory that a woman can reach for to instantly add polish to an outfit. Shorter strands worn closer to the throat draw attention to the wearer’s face and skin; with their dewy complexions, young women look fantastic in pearl chokers. This style sits close to the throat and looks great with a business suit, v-neck sweater, tee-shirt or open-collared dress shirt.
• 18 inch pearl strand: This slightly more versatile, “princess” length necklace can be worn with most any neckline, and will serve the graduate well throughout her life. The princess length is a very popular choice for a great reason: it works well with everything from turtlenecks to sweaters, business suits, dress shirts, and more.
• pearl pendant: A pearl pendant necklace featuring a single, large pearl is a great option that can be worn with many different styles. Choose a thin sterling silver or white gold chain for a modern look.
• pearl bracelet: A perfect complement to a bold watch, and slightly more affordable than a pearl necklace, a pearl bracelet adds polish and class.
• pearl ring: A pearl ring can make quite a bold and sophisticated statement, especially when the ring features a single, large pearl. The only downside to buying a ring is that you need to know the graduate’s ring size. Classic pearl rings look fantastic with both white and yellow gold.
Many retailers and online stores sell classic pearl jewelry in sets. Not only is this great because you pay less for the set than if you purchased a necklace, earrings and bracelet separately, but buying a pearl jewelry set provides the added bonus that the pieces will match.
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February 1st, 2010
Are all Tahitian pearls black? What’s the difference between a cultured pearl and a natural pearl? Are freshwater pearls inferior to saltwater pearls? Are South Sea pearls really golden?
Good questions. With all the different pearl colors and types out there, it can be difficult to know just what you’re looking at. For those interested in buying pearls, or for gem enthusiasts who wish to learn more, here are answers to some of the most commonly asked questions about pearls.
Are All Tahitian Pearls Black?
Not only are Tahitian cultured pearls not exclusively black, they’re also not grown in Tahiti. Called “black” because of their exotic dark colors, Tahitian cultured pearls can also be gray, blue, green and brown. And they’re grown in the lagoons of small islands that are part of a group known as French Polynesia. Tahiti, the largest island, serves as the group’s center of commerce, and not as a pearl growing mecca.
Tahitian pearls are cultivated for about two years in Pinctada margaritifera cumingi, a large mollusk native to French Polynesia. One of the ways this unique oyster differs from other species is its interior shell color, which is dark. This so-called “black lipped” oyster also has black mantle edges—the “lips” that give this animal its descriptive name.
Today, the most sought-after Tahitian cultured pearls are dark green-gray to blue gray with rosé or purple overtones. Pearl colors are determined by several factors, including variations in the host oyster, color variation of the implanted donor mussel tissue, the number and thickness of nacre layers, and variations in growing environment such as temperature and water quality. Tahitians are most often variations of gray, black, green and blue, but other colors exist.
At an average size of 8mm-14mm, Tahitian cultured pearls—especially those specimens that are gem-quality and round—are very expensive. According to the latest information from the Gemological Institute of America, up to 40 percent of implanted black-lipped oysters produce a gem-quality cultured pearl, but only about 5 percent of the pearls they produce are round. And only 1-2 percent of the entire crop will result in round cultured pearls of the finest quality. No wonder a Tahitian pearl strand is so costly! If you want to wear Tahitian cultured pearls, one way to do so without breaking the bank is to choose a pendant-style necklace with a single pearl, pearl stud earrings, a single pearl ring, or baroque (non-symmetrical) pearls. These designs are every bit as exotic and a lot more affordable than a matched strand.
What’s the difference between a cultured pearl and a natural pearl?
Natural pearls are formed when an irritant, such as a parasite, makes its way into a pearl-producing animal such as an oyster or mollusk. To protect itself, the animal coats the irritant in nacre—a combination of organic substances that also makes up what we call mother-of pearl. Over time, the layers of nacre build up around the intruder and eventually form the organic gem we all know as the pearl.
Cultured pearls are formed in the same way as natural pearls, with one big difference: they get their start not by chance, but deliberately, when man intervenes with nature. To produce cultured pearls, a skilled technician, called a nucleator, induces the pearl-growing process by surgically placing an irritant—a mother-of-pearl bead and a piece of mantle tissue, usually—into a mollusk. The animal is then placed back into the water and monitored, cleaned, etc. until the pearl is ready to be harvested.
The Chinese have been culturing freshwater blister pearls (pearls that grow underneath the mantle on the inside of the animal’s shell) since the 13th century, but Kokichi Mikimoto, a Japanese man, is credited with developing modern pearl culturing techniques. By the early 1920s, Mikimoto was selling his cultured pearls worldwide.
Natural pearls can be very beautiful, but due to overfishing, pollution and other factors, they are a rare find indeed. Thus, nearly all pearls sold today are cultured pearls. There are two main types: freshwater and saltwater. South Sea cultured pearls, Tahitian cultured pearls and akoya cultured pearls are all types of saltwater pearls. Cultured pearls of all types can be found in jewelry stores worldwide.
Are saltwater pearls better than freshwater pearls?
It depends on who you ask, but many pearl experts today agree that freshwater cultured pearls can rival the beauty of their saltwater cousins. Due to improvements in culturing techniques, freshwater pearl farmers are producing beautiful, round, lustrous pearls that are a vast improvement over the wrinkled, rice-krispie-shaped gems that typified the freshwater pearl crop of the not-so-distant past.
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