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Vermont Diamond Jewelry, Vermont Diamonds, Diamond Jewelry
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Stowe Gems |
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Zodiac Gemstones
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Birthday/Month Gemstones
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Amethyst – is a gemstone variety of quartz Birthstone: February Hardness: 7 Toughness: Good Specific Gravity: 2.63-2.65 Ref. Index: 1.544 to 1.553 Double Refraction: +0.009 Main Source: Africa, Brazil Treatment: Routinely heated to enhance its color. The color should remain stable and not fade. Reaction to Heat/Torch: Fair, possible color change. Ultrasonic: Good, rarely a problem Steamer: Fair, usually no problem
Aquamarine – is a gemstone variety of beryl
Birthstone: March Hardness: 7 ½ to 8 Toughness: Fair Specific Gravity: 2.71 (+-.03) Ref. Index: 1.575 to 1.583 Double Refraction: -0.006 Main Sources: Africa, Brazil Treatment: Heat treated to get a darker blue color. (color may lighten slightly if over-exposed to direct light). Reaction to Heat/Torch: Fair to poor, heat may cause color change. Ultrasonic: Good, rarely a problem.
Streamer: Good to fair, prolonged use may cause problems
Diamonds, Gemstones, and Jewelry People have worn and loved Jewelry, Gemstones and Diamonds for thousands of years. Some of the oldest human remains ever found, dating back over thirty thousand years were wearing simple Jewelry adornment, necklaces, bracelets, earrings and rings, some bearing Gemstones and even Diamonds! Our Gemstone and Diamond Jewelry is the best we can make. We cut our own Gemstones and Manufacture the finest quality Gemstone and Diamond Jewelry in Vermont. Our Jewelry starts with original design and timeless style. From there we select the appropriate Gemstone from our vast selection of natural Gemstones from around the world. In some cases only a custom cut Gemstone from our lapidaries will do. Gemstones are our first love; to us nothing is as beautiful as a Perfectly Cut Gemstone mounted in a expertly made example of Fine Jewelry accented with natures own crisp White Diamond. The word Gem is derived from the Greek word GEMMA meaning Flower or Flower Bud, reflecting the ancients appreciation of natures Gemstone perfection. Not all Gemstones are perfect as-is when they come from the ground for jewelry making. The art of fashioning gemstones for jewelry has been perfected over thousands of years. Originally people were trying to improve the level of perfection found in natures Gemstones and to make them more sparkly and attractive. The art of Cutting Gemstones and Making Jewelry is alive and well at Stowe Gems! Diamonds, for instance, when found are not always perfect or even sparkly, it is the gem cutters skill that brings out the full beauty of the rough gemstone and allows the jewelry to take full advantage of natures inner gemstone beauty. Jewelry Quality Diamonds are very difficult to cut, and that, combined with the intrinsic rarity of Diamond, has made Diamond perhaps the most treasured of Gemstones. Diamond is legendary for its hardness, Ten on the Mohs Scales, a Diamond is actually much harder than any known natural substance. Diamond is also potentially the most transparent substance known, there factors and Diamonds ability to take a uniquely high polish, make Diamond the most south after Gemstone for Jewelry. The Diamonds we use in jewelry are produced in a manner sensitive to social and political conflict based on personal knowledge and/or relying on information provided by the seller. Our Diamonds have been produced by legitimate sources of Diamonds not involved in funding conflict and in compliance with United Nations Diamond resolutions, to the best of our knowledge. Our Canadian Diamonds are a perfect example of non – conflict Diamonds they are from Canada’s North West Territory Diamond Mines. These Diamonds have, as a rule, Beautiful White Color and Great Clarity. These Diamonds are graded the same way as other Diamonds from any other Diamond Producing Region in the World. Mounted in our Jewelry these Diamonds are Spectacular! We import these great Diamonds directly from the Diamond Miners and Diamond Cutters, there are no middlemen as in the traditional Diamond distribution system. We are very excited about this new source of Diamond, as these Diamonds are supplies out side of any controlling Carte. This means that Stowe Gems will be able to provide a steady supply of Diamond, as supplies are controlled and restricted even more in the future.
Diamonds, Gemstones and Jewelry, its what Stowe Gems is all about!
Gemstone Information
All natural gemstones occur in different quantities and qualities. Some gemstones are abundant, while others are rare and found in limited supply. In order to make more rough material usable, sometimes gemstone enhancements are used.
Gem cutting and polishing are considered enhancements, because they are necessary to display the full beauty of a gem. Throughout history countless methods have been employed to improve the appearance of nature’s product. In the same way that people want to appear attractive to others, the gem cutter strives to improve the gem.
Stowe Gems only uses the best available material and any enhancements are permanent and stable. For instance, Amethyst is rarely enhanced. However, sometimes overly dark stones can be transformed into beautiful Citrine.
Aquamarine is generally a blueish green color. To improve their popularity, these are heated to produce a more blue color. The heating does not make the stone darker: it only removes the greenish component.
Turquoise is commonly enhanced to prevent the natural blue color from turning to green through wear and skin oils.
Natural Opal is seldom enhanced, but care must be taken when wearing this Gem because while hard, it can be brittle. These gems have not been enhanced by heat,chemicals, radiation, fillers or coatings – we guarantee it! Bloodstone, Chalcedony, Chrysoprase, Chrome Pyrope Garnet, Color Changing Garnet, Iolite, Rhodolite Garnet, Mozambique Garnet, Opal, Spessatite Garnet, Tsavorite Garnet,Moonstone, Nephrite Jade, Mexican Fire Opal,Genuine Black Star Sapphire, Peridot, Genuine Blue Star Sapphire, Precious Topaz.
For additional gem information, please visit the American Gem Trade Association –
Click Here to Visit the Gemological Institute of America
Click Here to Visit the International Gemological Institute
Click Here to Visit the European Gemological Laboratory
Gemstone Properties
Blue Topaz Birthstone: December (Alternate) Hardness: 8 Specific Gravity: 3.52(+.02) Toughness: Fair to poor Ref. Index: 1.61 to 1.63 Double Refraction: +0.008 to .010 Main Sources: Brazil, Sri-Lanka Treatment: Irradiation & Heating (stable) Reaction to Heat/Torch: Poor, heat may cause color change Ultrasonic: Fair, extended use may cause problems Steamer: Fair to poor, prolonged heat may cause problems
Blue Zircon
Birthstone: December
Hardness: 6 ½ to 7 Toughness: Poor Specific Gravity: 4.15 (+-.15) Ref. Index: 1.777 to 1.987 Double Refraction: +0.059 Main Sources: Africa & Burma Treatment: Heat (color may lighten if exposed to direct light) Reaction to Heat/Torch: Poor, color change may occur Ultrasonic: Fair, extended use may case problems
Steamer: Poor, prolonged heat may likely cause problems
Citrine – is a gemstone variety of quartz Birthstone: November Hardness: 7 Toughness: Good Specific Gravity: 2.66 (+-.01) Ref. Index: 1.544 to 1.553 Double Refraction: +0.009 Main Sources: Brazil, Africa Treatment: Routinely heated to enhance its color. The color should remain stable Reaction to Heat/Torch: Fair, possible color change Ultrasonic: Good, rarely a problem
Steamer: Fair, usually no problems
Emerald – is a gemstone variety of beryl Birthstone: May Hardness: 7 ½ to 8 Toughness: Poor Specific Gravity: 2.72 (+-.05) Ref. Index: 1.57 to 1.58 Double Refraction: 0.006 Main Sources: Africa, Brazil & Columbia Treatment: Oiling to fill in fractures.
Reaction to Heat/Torch: Very poor
, may draw out oil in fractures! Ultrasonic: Poor, recommended for very short time only
Steamer: Very Poor
Garnet – Pyrope, Almandine, Spessartite & Grossular are the most common varieties. Birthstone: January Hardness: 7 to 7 ½ Toughness: Fair to Poor Specific Gravity: 3.61 to 4.15 Ref. Index: 1.72 to 1.87 Double Refraction: none Main Sources: Africa, Thailand & India Treatment: Not currently known to be enhanced Reaction to Heat/Torch: Fair to Poor, sudden heat may cause fractures Ultrasonic: Good to Fair, no problem in most cases
Steamer: Fear to Poor, can be risky in larger sizes
Opal – is a gemstone variety of quartz Birthstone: October Hardness: 5 to 6 ½ Toughness: Poor Specific Gravity: 2.15 (+-.09) Ref. Index: 1.45 Double Refraction: none Main Sources: Australia, Mexico Treatment: Not currently known to be enhanced
Reaction to Heat/Torch: Very poor, cracking will occur
Ultrasonic: Poor, not recommended
Steamer: Poor, not recommended Fresh Water (Cultured*) Pearl *Cultured is the method by which man inserts a seed inside a mollusk and causes it to produce layers of nacre to protect itself against the irritant (seed) and thus create a pearl. This is done in salt and fresh water. Birthstone: June Toughness: Good Hardness: 3 – 4 Specific Gravity: 2.60 to 2.78 Ref. Index: 1.52 to 1.66 Double Refraction: weak to none Main Source: Japan, China & South Sea Areas Treatment: Sometimes bleached or dyed Reaction to Heat/Torch: Very Poor, will discolor or crack Ultrasonic: Poor, not recommended
Steamer: Poor, not recommended
Peridot
Birthstone: August Hardness: 6 ½ to 7 Toughness: Poor Specific Gravity: 3.32 (+-.05) Ref. Index: 1.654 to 1.69 Double Refraction: +0.036 Main Sources: Africa, China & USA Treatment: Not currently known to be enhanced. Reaction to Heat/Torch: Poor, heat may cause fracturing Ultrasonic: Fair, do not emerse for extended time.
Steamer: Poor, not recommended.
Precious Topaz – a gemstone variety of topaz Birthstone: November Hardness: 8 Toughness: Fair to poor Specific Gravity: 3.55 (+-.02) Ref. Index: 1.610 to 1.638 (dbl) Double Refraction: +0.008 Main Sources: Brazil & Sri Lanka Treatment: Heat, color may fade slightly in direct light. Reaction to Heat/Torch: Poor, color change may occur. Ultrasonic: Fair to Poor, emerse for short time only.
Steamer: Poor, not recommended.
Rhodolite – is a gemstone variety of garnet Birthstone: January (Alternate) Hardness: 7 to 7 1/2 Toughness: Fair Specific Gravity: 3.84 (+-.10) Ref. Index: 1.76 Double Refraction: none Main Sources: Africa Treatment: Not currently known to be enhanced. Reaction to Heat/Torch: Fair to Poor, sudden heat may cause fracture. Ultrasonic: Good to Fair, usually no problem. Steamer: Poor to Fair, not recommended in most cases.
Ruby – is a gemstone variety of corundum
Birthstone: July Hardness: 9 Toughness: Very Good Specific Gravity: 4.00 (+-.03) Ref. Index: 1.76 to 1.77 Double Refraction: -0.008 Main Sources: Thai, Burma, Vietnam, India Treatment: Heat (stable) Reaction to Heat/Torch: Very good, should remain stable. Ultrasonic: Very Good, usually no problems.
Steamer: Good, usually no problems.
Sapphire – is a gemstone variety of corundum Birthstone: September Hardness: 9 Toughness: Very Good Specific Gravity: 4.00 (+-.03) Ref. Index: 1.76 to 1.77 Double Refraction: -0.008 Main Sources: Thailand, Australia, Sri-Lanka & Africa Treatment: Heat &/ or Irradiation to enhance color (stable) Reaction to Heat/Torch: Good, but possible color change. Ultrasonic: Very Good, usually no problems.
Streamer: Good, usually no problems.
Tanzanite – is a gemstone variety of zoisite. Hardness: 6 ½ to 7 Toughness: Poor Specific Gravity: 3.35 Ref. Index: 1.691 to 1.70 Double Refraction: +0.009 Main Sources: Tanzania Treatment: Heat treated to change color from pale brown to a vibrant blue/purple (color is stable). Reaction to Heat/Torch: Very Poor, stone will fracture or break. Ultrasonic: Poor, very short time only.
Steamer: Very Poor, do not use.
Tourmaline (Pink & Green) Birthstone: October (Pink-Alternate) Hardness: 7 to 7 ½ Toughness: Fair Specific Gravity: 3.12 (+-.10) Ref. Index: 1.616 to 1.652 Double Refraction: -0.014 to -0.044 Main Sources: Africa & Brazil Treatment: Heat & Irradiation (color is stable). Reaction to Heat/Torch: Poor to Fair, stone may fracture. Ultrasonic: Fair to Good, extended emersion could cause problems.
Steamer: Fair to Poor, some stones has been known to fracture.
Tsavorite – is a gemstone variety of grossularite garnet. Hardness: 7 to 7 ½ Toughness: Good to Fair Specific Gravity: 3.60 (+-.08) Ref. Index: 1.738 to 1.745 Double Refraction: none Main Sources: Africa Treatment: None Reaction to Heat/Torch: Fair, but sudden change in temp may cause fracturing. Ultrasonic: Good, usually no problems.
Steamer: Fair to Poor, sometimes problems do occur.
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