Gem Insider® Sterling Silver 12 x 10mm Kingman Turquoise & Tanzanite Ring

Set your style to stun! Seamlessly combining easy contours, powerful hues and beautiful shimmer, this lovely ring puts your refined fashion sensibilities on prominent display. So slip it on and start entertaining those compliments!

One cushion shaped Kingman turquoise cabochon sits at the center of this sterling silver ring in a north-south orientation. Shimmering tanzanites decorate butterfly-like shapes on both polished upper sides of the shank. An undergallery complete with ornate scroll cut-outs provides a comfortable fit.

  • Metal: Rhodium over sterling silver
  • Stone Information:
    Tanzanite: Two marquise cut 4 x 2mm and four pear cut 4 x 3mm
    Stabilized Kingman Turquoise: One cushion shaped 12 x 10mm cabochon
  • Setting Type:
  • Approximate Total Weight:
    Tanzanite: 0.60ct
  • Measurements: 1/2"L x 3/4"W x 3/16"H
  • Collection: Gem Insider
  • Country of Origin: China

Check out the Ring Sizing Guide to find your ring size.

Stabilized turquoise is enhanced through a process of coating the genuine gemstone with colorless acrylics or resin to fill porous gaps, harden the stone and maintain the stone’s color.

All weights pertaining to gemstones, including diamonds, are minimum weights. Additionally, please note that many gemstones are treated to enhance their beauty. View Gemstone Enhancements and Special Care Requirements for important information.

Sterling Silver

Sterling silver, also called fine silver, is a beautifully lustrous cool-toned precious metal favored in fine jewelry among other products. The most reflective of all metals (excluding mercury), sterling silver looks stunning by itself and brings out the best hues in an array of colorful gemstones.

Sterling silver can be polished to a higher sheen than platinum. In fact, Ag, the chemical symbol for silver, comes from a word that means “white and shining.” The surface of silver can boast that shiny, polished appearance, or can be brushed, satin, matte, sandblasted, antiqued or oxidized (chemically blackened).

In order to be called sterling silver, a metal must be made up of a minimum of 92.5% pure silver and 7.5% alloy (meaning other metals), including but not limited to copper and nickel. The alloy is added to pure silver to make the metal more durable, tougher and harder. Sterling silver is designated a fineness of “925.” Pieces with sterling silver may be marked “sterling.”

Finishes on Sterling Silver
Finishing, or plating, is a common treatment with sterling silver. Popular types of plating are rhodium plating, gold plating and anti-tarnish plating. Plating is used to extend the life and sheen of the jewelry. After sizing or buffing a piece of jewelry with a machine, it must be re-plated to restore the finish.

  • Rhodium Plating: Rhodium plating is a complex and laborious process that enhances the luster and beauty and extends the life of silver. A member of the platinum metal group, rhodium is often used as a finishing touch on silver jewelry. It's a shiny silvery metal with a very white and reflective appearance, much like mercury. It's also very hard, so it withstands much wear and tear, resists natural tarnishing and wonderfully mimics the brilliant finish of freshly polished silver.

    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.

  • Avoid exposing sterling silver to direct sunlight and harsh chemicals, including chlorine, ammonia, hair products, perfumes, cosmetics, perspiration and strong jewelry cleaning solutions.
  • Periodically wash sterling silver with mild dish soap and warm water. Rinse well and dry completely with a soft cloth before storing because moisture can cause tarnish.
  • Lightly polish sterling silver frequently with a soft silver-polishing cloth, avoiding abrasive cloths completely.
  • Tarnish is easy to remove when it first forms as a yellowish tint, but becomes more difficult to remove when it becomes brown and black. Remove tarnish with a silver polish cream, avoiding immersing pieces with gemstones in tarnish-removal solutions.
  • Minimize scratches on sterling silver by storing it in its own compartment in your jewelry box or in a cloth pouch. Sterling silver may also be stored in sealed polyethylene bags.

    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.

    One of the oldest known gems, turquoise has been prized for thousands of years. The Egyptians believed it had powerful mystical properties, and turquoise jewelry has been found interred with 7,500-year-old mummies. Ancient manuscripts from Persia, India, Afghanistan and Arabia say that the health of a person wearing turquoise could be assessed by variations in the color of the stone. Montezuma's treasure, now displayed in the British Museum, includes a carved serpent covered by a mosaic of turquoise.

    Turquoise was especially revered by the Native American culture, an association that dates back to the Aztec empire more than 700 years ago. For the Aztecs, turquoise was reserved for the gods and mere mortals were forbidden to wear it. They believed it to be a gem of good fortune and a commodity more valuable than gold. Native Americans believed turquoise protected people from demons and they even placed turquoise in tombs to guard the dead. The stone's colors were thought to be symbolically blue for the heavens and green for the earth. Often warriors tied turquoise to their bows to ensure accurate shots.

    Today, turquoise is still believed to provide protection and bring luck. It is said to also promote prosperity, love, healing, courage and friendship. The stone is thought to relax the mind and ease mental tension.

    The gem's opaque turquoise color varies from shades of greenish blue to deep cobalt to sky blue. Some varieties display white or brown matrixes, which are streaks of the mother stone from which they came, while others have veins of black matrix running through them. Generally, the bluer the blue, the more highly valued the stone. A clear, even texture without mottling or veins is also preferred. The most rare and valuable color is an intense azure, but the most common is the mild to medium sky blue. Sometimes imitated by minerals such as chrysocolla, turquoise stones are often dyed or colored with coatings of various resins.

    In the 13th century, turquoise was mistakenly believed to have come from the country of Turkey. Hence, its name came from the French word for Turkey, "Turquie". The stone was actually brought to Europe from Persia (now Iran), via Turkey. It is a mineral usually found in association with copper deposits and is sometimes mined as a by-product of copper mining.

    Although turquoise is found in desert regions worldwide, especially in the southwestern United States, perhaps the finest and most valuable comes from the Sleeping Beauty mine in Globe, Arizona. It is named after the Sleeping Beauty Mountain which resembles a reclined woman in a slumbering state. Its turquoise is world renowned for its beauty that ranges from pure robin's egg blue to a darker royal blue.

    While only ranking between 5.0 and 6.0 on the Mohs Scale of hardness, turquoise remains quite popular for jewelry. In Europe, turquoise rings are given as forget-me-not gifts, while in the United States, the stone is given as traditional 5th and 11th wedding anniversary gifts. It has even become a modern consideration for the December birthstone. When wearing turquoise over the years, the stone will absorb oil from a person's skin, causing a slight change to the color of turquoise.

    Turquoise is commonly treated in various fashions to ensure its durability and visual appeal, especially when set in jewelry. If a stone has been treated, the type of process will be noted.

  • Stabilized turquoise is enhanced through a process of coating the genuine gemstone with colorless acrylics or resin to fill porous gaps, harden the stone and maintain the stone's color.
  • Reconstituted turquoise is enhanced through a process in which genuine gemstone fragments are powdered and bonded with resin to reinforce the stone. Turquoise-bearing rock is pulverized and the turquoise is separated from the rock using a float process. The pulverized turquoise is then mixed with a colored resin, which is then injected into a mold to form a solid block. This is then cubed, preformed and fashioned into various shapes and sizes. It is an excellent method of using rough that would otherwise not be usable.
  • Impregnated turquoise is enhanced through a process in which the genuine gemstone is infused with oil, wax or resin to reinforce the stone.
  • Mohave turquoise is crafted through a process that uses a hydraulic press to assemble turquoise nuggets together with bronze metal matrix throughout the brick of turquoise. Once the turquoise is pressed or assembled, it is stabilized to harden the stone. Currently, Mohave turquoise is the only product on the market that features genuine Arizona Kingman Mine turquoise and real metal matrix. The Kingman mine is the oldest known turquoise mine in the Americas and is located at the Mineral Park Mine in the Cerbat Mountains, about 14 miles from Kingman, AZ.

    Turquoise is one of the oldest gemstones known in history going back 6,000 years BC and has been revered by almost every ancient culture. It is the alternate birthstone for December and has a Mohs rating of 5.0-6.0. Turquoise is a Hydrous Phosphate of Aluminum and Copper and may form as a chalky coating on rocks or finely disseminated crystals formed within small rock cavities. Rough such as this is not commercially viable, which has led to the development of reconstituted turquoise. Turquoise-bearing rock is pulverized and the turquoise is separated from the rock using a float process. The pulverized turquoise is then mixed with a colored resin, which is then injected into a mold to form a solid block. This is then cubed, preformed and fashioned into various shapes and sizes. It is an excellent method of using rough that would otherwise not be usable.

  • About the Collection
    Travel the lustrous world of genuine gemstones, exploring striking textures, vibrant colors and unexpected shapes. The Gem Insider® is your source for jewelry designed with truly distinctive gemstones. With a keen eye for quality and personality, EVINE Live gem expert and certified gemologist Paul Deasy voyages to the far reaches of the globe in search of the world's most unique stones.

    Experience the natural beauty and mesmerizing appeal of colorful, expertly-cut gemstones. Each ring, necklace, pendant and earring is designed to give you a look that is utterly original. Complemented with gold and silver, every design is crafted to last a lifetime.

    Grab your passport, fasten your seatbelt and get ready to explore the magnificent world of gemstones.

    Paul DeasyAbout the Guest
    Gem expert, author and TV veteran Paul Deasy is your professor and guide for this unique journey into the world of the exotics.

    Paul’s passion for gems goes back more than 20 years and is as radiant as any ruby, diamond or sapphire. Mr. Deasy’s unique expertise in gemstones was acquired the old fashioned way - through traveling the world extensively, attending industry trade shows, and filming in exotic locations, including Tanzania, Australia, Italy, Arizona and Nevada.

    Whether you’re a die-hard gemstone aficionado or a beginner who loves unique looks, you’re sure to enjoy Paul's enthusiasm, experience and eye for exotic gemstone style. 

    Wednesday, November 02
    Thursday, December 08
    • 8AM ET with Host