Jules by Julianna B 18K Gold Plated Freshwater Cultured Pearl & White Topaz Pendant 18" Necklace

Barrel Clasp: Used on most rope chains to make the chain more secure. The barrel clasp looks like part of the chain and twists to get a pendant on and off.

Lobster Claw Clasp: As a traditional clasp style found in bracelets and necklaces, the lobster claw is generally reserved for heavier styles that may need added strength. The closure's shape is more oblong, similar to a teardrop shape, and is controlled by a tip that opens and closes the spring in the clasp.

Magnetic Clasp: A magnetic clasp relies on a strong internal magnet that works to pull both ends of the clasp together. In most cases, a magnetic clasp is used for light to medium weight jewelry pieces that do not put excessive stress on the magnet.

S-Clasp: An S-shaped piece of metal that connects a chain by hooking metal rings on each end of the S-shape.

Slide Insert Clasp: This type of clasp is exactly as it sounds. With a box-like shape that is hollow on the inside, the wearer will slide the nearly-flat tab into the box until it clicks, indicating a secure closure. On some jewelry, a slide insert clasp will be accompanied by a side safety catch, which adds strength and security to the clasp.

Spring Ring Clasp: One of the most common closure types, the spring ring clasp is typically used for light to medium weight bracelets or necklaces. It is round in its design and features a small tip which controls the opening and closing of the spring. The circle then closes around another smaller loop or link at the other end of the strand.

Toggle Clasp: A toggle clasp is a narrow piece of metal, usually designed in the shape of a bar, which is then pushed through a circular ring to act as a fastener. Unlike the lobster claw or spring ring clasps, a toggle clasp is not controlled by a spring. The pretty design is less secure than other closure types, but is usually meant to be a big part of the design and is meant to "show". The clasp is an attractive way to secure a chunkier link bracelet or necklace.

Necklace Sizing
The length of a necklace or chain you buy depends upon a number of factors, including what you will be wearing with it and your neck size.

To measure your neck, wrap a soft, flexible tape measure around the base of your neck. This is the same measurement used for collar sizes in men's shirts. A good rule of thumb is to buy a necklace or chain a minimum of two sizes up from your neck measurement.

Pearl:
Often referred to as a gift from the sea, pearl's origin has been an object of folklore throughout history. Early Chinese myths told of pearls falling from the sky when dragons fought. Ancient Persian legend said that pearls were tears of the gods. In classical times, it was believed that pearls were formed when moonbeams lit upon shellfish, while Indian mythology suggested pearls were formed when dewdrops fell from the heavens into the sea.

In truth, pearls are lustrous gems with an organic origin. They are formed inside mollusks such as oysters, clams and mussels when an irritant such as a tiny stone, grain of sand or small parasite enters the mollusk's shell. To protect its soft inner body, the mollusk secretes a smooth, lustrous substance called nacre around the foreign object. Layer upon layer of nacre coats the irritant and hardens, ultimately forming a pearl.

This process of building a solid pearl can take up to seven or eight years. Generally, the thicker the nacre becomes, the richer the "glow" of the pearl and greater its value. While pearls that have formed on the inside of the shell (called blister pearls) are usually irregular in shape and have little commercial value, those that are formed within the tissue of the mollusk are either spherical or pear-shaped and are highly sought-after for jewelry. Most pearls on the market measure 7.0-7.5mm in diameter, but can be found as small as 1mm or as large as 20mm.

Although some pearls are found naturally in mollusks (considered the most valuable), the vast majority of pearls are grown, or cultured, on pearl farms. To instigate this culturing process, a small shell bead, or nucleus, is surgically inserted into the mantle of an oyster. Despite the fact that pearls are harvested in great quantities on pearl farms, producing a quality pearl is an extremely rare event. It is estimated that half of all nucleated oysters do not survive and, from those that do, only 20 percent create marketable pearls.

Since nacre is organic, pearls are quite "soft" and rank only a 2.5-4.5 on the Mohs Scale. The gems are very sensitive and special care should be taken when wearing and storing them.

The value of a pearl is judged by several factors and high-quality pearl strands should feature pearls well-matched in these factors: orient, the lustrous iridescence that's produced when light is reflected from the nacre, should glow with a soft brilliance; the nacre's texture should be clean and smooth, absent of spots, bumps or cracks; the shape of a pearl should be symmetrical and generally the rounder a pearl is, the higher its value; and although pearls come in many different colors (depending on the environment and species of mollusk), the most favored are those that have a rose-tinted hue.

Pearls are cultured in a variety of sizes, shapes and colors. Akoya pearls are the classic round pearls found in most pearl jewelry. They are mainly grown in the waters off Japan and are found in a range of hues, including white, cream, pink and peach. Mabe pearls are grown in Japan, Indonesia, French Polynesia and Australia. They are usually flat-backed and often called blister pearls because they form against the inside shells of oysters rather than within oysters' bodies. Tahitian pearls are grown in French Polynesia and come in a range of colors, including grey and black with green, purple or rose overtones. Because of their large size and unique dark colors, they command very high prices. Also prized for their large size, white South Sea pearls are grown in Australia, Indonesia, the Philippines and other areas of the South Pacific.

Freshwater pearls come in various colors and are grown in bays, lakes and rivers primarily in Japan, China, Europe and the United States (Mississippi River). They are often irregularly shaped and less lustrous than saltwater cultured pearls, making them substantially less expensive. Types of freshwater pearls include Biwa pearls from Lake Biwa in Japan, irregularly shaped baroque pearls and the exceptionally small seed pearls.

Pearls that develop within the soft tissue of mollusks encounter little resistance and therefore grow to be round or "regular" in shape. However, pearls that become lodged in the muscular tissue of shellfish experience resistance, so they free-form into irregular, unusual shapes. These "Baroque" pearls are asymmetrical and are world-renowned for their naturally unique beauty. Baroque pearls were especially prized by jewelers during the Renaissance.

In China, cultured pearls come mainly from freshwater rivers and ponds, whereas Japan is famous for culturing pearls along their saltwater coasts. Black pearls can be found in the Gulf of Mexico and in waters off some islands in the Pacific Ocean. In the warmer waters of the South Pacific, larger oysters produce South Sea cultured pearls and Tahitian black cultured pearls. Cultured pearl industries are also carried out in Australia and equatorial islands of the Pacific. For thousands of years, natural pearls have been harvested from the Persian Gulf, the Red Sea and the coasts of India and Sri Lanka. Natural saltwater pearls are also found in the waters off Indonesia, the Gulf of California and the Pacific coast of Mexico.

Pearls have been treasured throughout ancient folklore and history. Aphrodite, the Greek goddess of love, considered pearls to be sacred. The Greeks prized the gems for their beauty and believed wearing pearls would promote marital bliss and prevent newlywed women from crying. In ancient Rome, pearls were considered the ultimate symbol of wealth and status. The ancient Egyptians were buried with them and Cleopatra favored pearls immensely. It is said that while dining with Mark Anthony, she purposely dropped a pearl into her drink to demonstrate the wealth of her rule.

Today, the pearl is a universal symbol of innocence and purity. It is the birthstone for June and is considered the traditional gift for couples celebrating their 3rd and 30th wedding anniversaries. Many believe the gem gives wisdom through experience, quickens the laws of karma and cements engagements and love relationships. It is also considered to offer the powers of wealth, protection and luck.

The largest pearl in the world is approximately 3" x 2", weighing one-third of a pound. Called the Pearl of Asia, it was a gift from India's Shah Jahan to his favorite wife, for whom he also built the Taj Mahal. Another famous pearl is called "La Peregrina," or "The Wanderer," and is considered to be the most beautiful pearl in the world. Pear-shaped and 1-1/2" in length, it is said that 400 years ago the pearl was found by a slave in Panama, who gave it up in return for his freedom. The pearl turned up in 1969 at a New York auction house. It was purchased by actor Richard Burton for his wife, Elizabeth Taylor.

Topaz:
A symbol of strength and intelligence, topaz derives its name from Topazios, an island in the Red Sea that is known today as Zabargad. The Greek word “topazios” means “to seek,” since the island was covered with a thick fog and difficult to find. Gemstones found on the island were called topaz, although the stones were eventually found to actually be peridot. The real gem of topaz is found throughout the world, with different occurrences producing specific colors.

Brown, yellow, orange and red topaz are found in Brazil, Sri Lanka and Siberia. Most brownish topaz is heated to produce a permanent and glamorous pink color. Following the discovery of pink topaz in Russia during the 19th century, Imperial topaz was found. Featuring a sherry red, deep pink or reddish-orange color, the gem was so coveted that its ownership was restricted to the Czar, his family and those who received it as a royal gift. Today, Imperial shades are the most rare and, therefore, the most valuable.

Blue topaz is rarely found in nature and is most often created through a combination of heat treatment and irradiation. It is found in Brazil, Sri Lanka, Nigeria and China. Topaz is often colorless, too, and can be found in the United States, Mexico, Russia and Pakistan. In 1998, a new type of enhanced topaz made its appearance with a greenish-blue or emerald green color. All colors of topaz rank an 8.0 on the Mohs Scale of hardness.

Yellow topaz is November’s birthstone and blue topaz is December’s birthstone. Blue topaz is also the traditional gift for 4th and 19th wedding anniversaries, while Imperial topaz is celebrated as a 23rd anniversary gift. Perhaps the most famous topaz is a large, colorless stone known as the Braganza. It was discovered in Brazil in 1740 and was originally thought to be a priceless diamond. Today, the giant 1,680.00ct stone is set in the Portuguese Crown.

Paraiba color topaz is vibrant greenish blue designed to resemble the rare Paraiba tourmaline gemstone from Brazil. Typically, a blue or colorless topaz is heat treated to create the intense and desirable Paraiba color. White (or colorless) topaz is a budget-friendly alternative to diamonds.

The mystery and allure of topaz goes back thousands of years. To the ancients, it was a symbol of love and affection and was thought to ward off sudden death. The Romans associated topaz with Jupiter, the god of the sun. The Greeks called it the Stone of Strength, believing it had the power to increase strength and make its wearer invisible in times of emergency. The Egyptians said the gem was colored with the golden glow of the sun god, Ra, making topaz a powerful amulet that protected its wearer against harm.

Topaz' mystical curative powers were believed to wax and wane with the phases of the moon. The gem was said to change color in the presence of poisoned food or drink and falcons were carved on the stones to help earn the goodwill of kings and magnates.

Today, topaz is said to be the gem that has the widest range of curative powers. It is believed to dispel enchantment and protect against negative emotions such as anger, fear, greed and envy. Its properties are supposedly enhanced when the gem is mounted in gold. Because of this association with gold, topaz is used to bring or enhance the wearer's money-gathering abilities and has long been used in money and wealth rituals.

Wearing topaz is said to improve and deepen relationships, promote patience, ensure fidelity and enhance the ability to love. The gem is also believed to bring friendship, intelligence, long life, beauty and a pleasant disposition.