Pinctore Two-tone Choice of Gemstone Earrings

Caring for Sterling Silver
Sterling silver becomes tarnished as the result of a natural chemical process that occurs when sterling silver is exposed to chemicals in the air, rubber, wool and latex. Humidity also plays a role in accelerating tarnishing. It's easy to keep your sterling silver sparkling, though, by taking a few steps to prevent tarnish and other wear and tear.

Vermeil Plating:
Pronounced "vermay," vermeil is an electroplating process in which 14K gold or higher is coated over sterling silver. Officially designated by the jewelry industry, items may only be sold as vermeil if they have a minimum thickness of 100 millionths of an inch (2.5 microns) of gold over the silver. Regular gold plating is less than 2.5 microns.

The "vermeil" technique of plating sterling silver with gold originated in France in the 1750s. It differs from "gold filled" or "gold plated" in terms of the thickness or thinness of the microns over sterling silver. "Gold filled" pieces have a much thicker layer, between 15 and 45 microns, which is mechanically bonded to the base metal with heat and pressure. Vermeil is a more expensive version of "gold plated". It does not wear off as quickly as gold plating does. However, over time, vermeil wears off and therefore will require re-plating.

Gold/Platinum Embraced Silver or Bronze:
Our platinum and gold embraced collections feature layers of platinum or gold over sterling silver or bronze for a lustrous, radiant finish everywhere you look and touch.

To care for your plated jewelry items:

Amethyst
Amethyst, the most precious member of the quartz family, exhibits purple shades ranging from pale lilac to deep purple, sometimes exhibiting reddish or rose overtones. Very deep-colored amethysts are the finest and most highly valued . Some stones are so over-saturated with color they have areas that are blacked out, which can negatively impact their value. Paler shades, sometimes called "Rose of France," were common in Victorian jewelry. Banding—darker and lighter zones of color—is also a common occurrence. Occasionally, amethyst is even found combined with its sister quartz, citrine, into a single stone called ametrine.

The birthstone for February, amethyst is an extremely popular gem for jewelry because of its regal color, variety of sizes and shapes, affordability and wide range of hues. It also is the recommended gem for couples celebrating their 6 th and 17 th wedding anniversaries. With a hardness of 7.0 on the Mohs Scale, amethyst can occur as long prismatic crystals that have six-sided pyramids at either end, or can form as drusies that are crystalline crusts that only show the pointed terminations.

The ancient Greeks believed that amethyst made one immune to the effects of alcohol. In fact, the name even comes from the Greek word amethystos, which means “not drunken.” Legend has it that the amethyst originated from Bacchus, the god of wine. Bacchus became angry at the mortals and vowed that the next mortal to cross his path would be eaten by tigers. Amethyst, a beautiful young maiden, was on her way to worship the goddess, Diana. Diana turned her into colorless quartz to keep her from being eaten. Bacchus observed the miracle and repented his hasty decision. He poured wine over the young maiden, leaving her feet and legs colorless. This is the reason that amethyst crystals are usually uneven in color and have a colorless base at the bottom. Because amethyst was believed to prevent drunkenness, wine goblets were often carved from it in ancient Greece. Today, the gem still symbolizes sobriety.

Amethyst has been a part of history throughout the ages. Evidence suggests that prehistoric humans used amethysts for decoration as early as 25,000 B.C. Legends suggest that the Egyptian queen Cleopatra wore an amethyst signet ring, as did Saint Valentine, who bared an amethyst engraved with the figure of Cupid. During medieval times, people used the stone as medication to stay awake and alert. Leonardo Da Vinci claimed that amethyst could dissipate evil thoughts and quicken the intelligence. In some legends, the stone represents piety, celibacy and dignity. In the Middle Ages, for instance, the gem was an important ornamentation for the Catholic Church and other religions. It was considered the stone of bishops, and they still often wear amethyst rings. In Tibet, amethyst is considered sacred to Buddha and rosaries are often made from it. Amethyst has also long been a favorite of kings and queens for its royal purple hues that symbolize wisdom, strength and confidence. Amethysts are even featured in the British Crown Jewels and were worn by Catherine the Great.

Amethyst’s availability and magical qualities make it the stone of preference in ancient lore and mysticism. As a meditation stone, it is said to quiet the mind, promote contemplation, sharpen psychic powers and uplift the spirit. It is a stone of deep wisdom. Folklore says it can quicken the wit, calm fears and ward off anger. It has a royal purple essence that is said to lend courage to travelers, scare off thieves and protect travelers from harm. Placed under the pillow or worn to bed, there are claims it promotes peaceful sleep and pleasant dreams. Amethyst can also be worn to supposedly make the wearer gentle, amiable and happy.

The stone is mined in Brazil, Uruguay, Bolivia and Argentina, as well as in Zambia, Namibia and other African nations. Very dark amethyst in small sizes also is mined in Australia. But the ideal for fine quality amethyst was set by a Siberian variety, often called Russian or Uralian amethyst, which is now considered a defunct source. Generally, South American amethyst tends to come in larger sizes than African amethyst, but the African variety has a reputation for having deeper color intensity and is therefore considered more valuable. The African version also is harder to come by than amethyst mined from South America. Most of today's amethyst comes out of Brazil.

Lune de France is a very special variety of amethyst that rarely comes to market. From the northwest state of Amazon in Brazil, this gemstone comes from the Maraba mine. This lovely lilac gemstone features a unique velvet-like quality that at first observation can be confused for an opal or moonstone. The gemstone's internal structure contains natural, cloud-like veils of microscopic inclusions that are extremely minute, even under high power magnification. These inclusions cause the incoming light to scatter and reflect, thus creating an opalescent effect. While a similar inclusion structure can be expected in rose quartz, it almost never occurs in an amethyst. Lune de France features a natural lilac color and retains excellent transparency allowing it to be faceted for maximum light play.

Jade
Jade reigns as the universal symbol for good luck and has been treasured in China as the royal gemstone for 5,000 years. The Chinese character for jade resembles a capital “I” with a line across the middle. The top of the character represents the heavens, the bottom the Earth and the center section humankind. It has been considered a symbol of love, virtue and status for thousands of years and remains popular today. Jade is traditionally given as a 12th anniversary gift and is believed to strengthen the body and bring longevity to life.

Jade is the term applied to forms of both jadeite and nephrite. The ancient jade carved in China was what we today call nephrite. In the nineteenth century, it was discovered that the material from the new world was not the same mineral as the jade from China. This new and different jade from Central America was called jadeite to distinguish it from the original nephrite. Both are similar in appearance, yet jadeite is considered the true jade and commands higher prices. Though both are quite durable and tough, ranking 6.5-7.0 on Mohs Scale, jadeite is slightly harder than nephrite due to its microcrystalline structure.

Jadeite has a much more vivid green color with finer translucency than nephrite. It is most treasured for its vivid greens, but it also comes in lavender, pink, yellow and white. Nephrite, however, is found in less intense spinach green, white, brown and black colors. While overall color is the most important factor in considering the value of jade, other important criteria are translucency, texture and pattern. Jade is most often sold by the piece rather than per carat. Because of its smooth and even texture, it has long been a preferred material for carving. When placed in jewelry, it is usually cut into smooth dome shapes called cabochons.

Jadeite is primarily mined in Myanmar. Each year, the state-owned Myanmar Gems Enterprise holds the Myanmar Gems, Jade and Pearl Emporium where boulders are sold to top jade dealers from around the world. The dealers take some high-risk gambles with the jade boulders they purchase. Boulders are sold intact, with only a tiny window cut in the side to expose a small section of the interior. The buyer has no idea what lies inside, whether there is valuable green jadeite or only white or brown-stained inexpensive material. Relying on instinct, buyers pay hundreds of thousands of dollars for what may turn out to be exquisite gemstones or huge losses.

The most valuable form of jadeite is known as imperial jade. It is a vivid emerald green color and comes from Myanmar. The Emerald Buddha, a sacred image that is enshrined at Wat Phra Kaeo in Bangkok, Thailand, is actually beautiful green jadeite. A leek green variety called "Russian Jade" is found near Lake Baikal in Russia. In addition to Myanmar, small quantities of jadeite can be found in Mexico and Central and South America, while nephrite is mined in Australia, Canada, Taiwan and the United States.

In ancient China, Jade was thought to preserve the body after death and was placed in emperors' tombs. One tomb contained an entire suit made of jade, thought to assure the physical immortality of its owner. In Central America, the Olmecs, Mayans and Toltecs also treasured jade and used it for carvings and masks. In Europe, although prehistoric axes and blades carved from jade have been found by archeologists, the gemstone was not popular for jewelry use until the sixteenth century when jade objects were imported from China and, later, Central America. The Portuguese brought home jade pieces from their settlement in China and called jade “piedre de ilharga,” which meant “stone of the loins” because they believed it to be strong medicine for kidney ailments. Jade objects brought to Spain were called by the Spanish version of this phrase, “piedra de hijada.” This became the French word “ejade,” which led to the English word jade.

Known for over 7,000 years, jade was first valued for its hardness, which made it a useful stone for constructing tools and weapons. In ancient Egypt, jade was appreciated as the stone of balance, inner peace and great affection. In China, jade plays a significant role symbolizing goodness, wisdom, courage, justice, modesty and compassion. The Chinese use the gemstone for creating praiseworthy objects, religious figures and esteemed furnishings for the imperial family. Today the gemstone has gained popularity across the world, admired for its symbolism, historical significance and beauty.

Quartz:
With its uniquely mystical appearance, quartz was the “rock crystal” used in ancient times to make crystal balls. It was believed to attract energy and is still considered to be spiritual today. The gemstone was once believed to be a compact form of ice. In fact, the Greeks originally named quartz “krystallos,” meaning ice, but this terminology soon applied to any type of crystal.

Often identified by its six-sided prism shape, quartz is the most common mineral on Earth, found in nearly every environment throughout the globe. With a ranking of 7.0 on the Mohs Scale, it is a component of almost every rock type and occurs in virtually every color imaginable. Quartz has a great amount varieties that are well-known by other names, including amethyst, citrine, ametrine, rock crystal, agate, druzy, chalcedony, tigers eye and many more. There are also several varieties that hold the name “quartz,” including rose quartz, smokey quartz and rutilated quartz.

The pale pink color of quartz is known as rose quartz, the traditional gift for couples celebrating their 2 nd anniversary. It is a delicate powder pink color that ranges from transparent to translucent. Transparent rose quartz is quite rare and is usually so pale that it does not show much color, except in large sizes. The translucent quality of rose quartz is much more common and is used for jewelry and carvings.

Rose quartz is probably one of the most prized stones for its mystical properties. Known as the “Heart Stone,” it is believed to have incredible powers to balance emotions and open the heart. Folklore says rose quartz can comfort brokenhearted people, bringing healing and clarity to the heart and allowing the wearer to learn to trust again. The stone is also said to foster happiness and the joy of life by bringing about contentment in love and filling one with optimism, tenderness and gentleness.

In addition to helping with romantic love, rose quartz is believed to enhance all other forms of love as well, including self-love, platonic and maternal. Its loving, nurturing energy is said to take away fears, resentment and anger and replace them with feelings of higher self-esteem and confidence. This soothing stone is also thought to balance emotions and heal emotional wounds. It is said to be especially powerful in times of stress or loss, bringing peace and calm to the wearer.

Ranging in color from nearly black to smoky brown, smoky quartz is transparent and owes its warm earthen hue to exposure to natural radioactivity. Care must be taken since its rich color will fade in the sun. Spelled either “smoky” or “smokey,” this variety of quartz is often incorrectly called “smoky topaz.”

Smoky quartz is believed to help dissolve negative energy and release stress. It is said to be a mild sedative with a relaxing effect that calms, soothes and restores balance and harmony. Folklore says the gem can embrace dark areas with light and love and therefore clear and cleanse the body both physically and emotionally. Smoky quartz is thought to be a warm, friendly and down-to-earth gem.

Rutilated quartz is a type of transparent rock crystal that contains long, fine needles of rutile crystals (titanium dioxide). These highly valued inclusions form a landscape of shining gold needles in an array of patterns that is breathtakingly beautiful. These golden inclusions are also known as Venus hair, Cupid’s darts and fleches d’amour (“arrows of love”). There is a less well-known variety called tourmalinated quartz that, instead of golden rutile, forms black or dark green tourmaline crystals.

Although rutilated quartz is usually cut as a cabochon, it can be a difficult stone to attain a smooth surface without pits. This is because rutile ranks a 6.0 on the Mohs Scale , while quartz ranks 7.0. The difference in hardness between the two materials, and because of the way rutile forms inside, causes problems when cutting. Each final cut piece is unique, with no two being exactly alike. Modern folklore says rutilated quartz brings forth each person's strengths, originality and ability to relate to others.

Tourmalinated quartz is a clear form of quartz with silver-tone filaments and threads of black tourmaline running through it. Because tourmalinated quartz is a combination of quartz and tourmaline, it has influences and characteristics of both these gems.

All quartz rock that is absent of color is deemed rock crystal. This category of quartz has the clarity of pure water, without as much as a hint of pigment. While this colorless quartz is too common to be considered a precious gemstone, it is still beautiful, as well as affordable. Rock crystal is commonly used in decorative carvings, figurines and chandeliers. It is also easy to cut, making it well suited in the creation of eye-catching jewelry.

Phantom quartz is a variety of quartz which, over the course of millions of years, forms over existing rock crystals. It takes its name from the particular structure of the trigonal crystals that form within its shape, known as the phantom. Found mostly in Austria, Brazil, Madagascar, Switzerland and the United States, phantom quartz can also be found in smoky quartz, citrines and amethysts. These phantoms, or the inner crystals, are usually composed of other minerals such as chlorite, goethite, hematite or even other kinds of quartz like the smoky and milky quartz.

Mention of phantom quartz is found in 2000-year-old texts where it was believed to have formed on ice hidden in dark caverns for millions of years. This ice, when exposed to extreme cold, got encased with the quartz, thus trapping the phantom within. Perhaps because of their elusive beginnings, phantom quartz are sometimes referred to as ghost crystals, specter crystals or even shadow crystals.

Tanzanite
No other gemstone discovery has made a bigger impact on the jewelry market than the recent newcomer, tanzanite. Its luscious color, and the fact that the stone is found in only one location throughout the world, makes tanzanite an exceptionally rare, valuable and highly sought-after gem.

Tanzanite’s mesmerizing saturation of color is what has made the stone so popular. It is the blue variety of the mineral zoisite and occurs in a beautiful range of colors. Rarely pure blue, the gem almost always displays signature overtones of purple. In smaller sizes, it tends toward light tones such as lavender, while in larger sizes, the gem typically displays deeper, richer blues and purples. The finest quality tanzanite is usually deep blue or violet, which is extremely spectacular in sizes above ten carats.

Tanzanite is pleochroic, meaning it shows the appearance of several colors in the same stone, depending on perspective. From different angles, the gem can appear blue, purple, yellow, grey or brown. Most rough crystals show a large proportion of brown shades, since tanzanite in its natural form is typically brown with red, orange, yellow or bronze hues.

Gem cutters may change this coloring by heating the stone to 500°C. This heat treatment releases the intense violet-blue colors for which the stone is famous. According to legend, the effect of heat on tanzanite was first discovered when brown zoisite crystals were caught on fire by a lightning strike. Local cattle herders noticed the beautiful blue crystals sparkling in the sun and picked them up, becoming the first tanzanite collectors.

The gem was first discovered near the base of Mount Kilimanjaro in the Merelani Hills of east-African Tanzania in 1967. This breathtaking location is the only known mining site on Earth for tanzanite. Right after its discovery, New York jeweler Louis Comfort Tiffany was presented with the first stones. Knowing it was going to be a sensation, he recommended finding a new name for the gem, since the gemological denomination “blue zoisite” reminded him of the word “suicide.” Tiffany suggested the name tanzanite, derived from its place of occurrence, and the new name quickly became established on the market. Tiffany & Co introduced the stone to the public in a spectacular promotional campaign two years after it had been discovered. It was enthusiastically celebrated as the “Gemstone of the 20th Century.”

A noted 122.70ct faceted tanzanite dubbed the “Midnight Blue” is on display at the Smithsonian Institution in Washington, D.C. In 1996, a 255.00ct tanzanite crystal was discovered near Arusha, but because of its many inclusions, it proved to be of little market value. Tanzanite ranks a hardness of 6.5-7.0 on the Mohs Scale and has become the traditional gift for couples celebrating their 24th anniversaries.

High-quality and larger-size tanzanites can be sold at extremely premium prices. Although demand for this beautiful gem continues to grow, supply shortages in recent years have hampered production and caused price fluctuations. In 1998, the weather phenomenon known as “El Nino” soaked Tanzania with heavy rains during what should have been the drought period. When the monsoons hit, the groundwater swells were high and caused devastating floods. Mines caved in and all hopes of finding additional tanzanite rough were swept away.

Because it is such a new gemstone, there is little folklore, superstitions or healing properties surrounding tanzanite. Some believe the stone helps people to be more practical, realistic and honest. It is thought to uplift and open the heart while helping one cope with change.