Londonderry Jewelry N Diamonds

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About Diamonds
  • The number, color, type, size and position of surface and internal birthmarks affect a diamond's value. Major inclusions can interfere with the path of light that travels through a diamond, diminishing its brilliance and sparkle and therefore its value.
  • Carat - The Larger a Diamond, the More Rare. Larger diamonds are found relatively infrequently in nature, which places them at the rarest level of the Diamond Quality Pyramid. What also makes a bigger diamond so desirable is that it shows off a stone's fine color and cut, and therefore its brilliance, to its best advantage.
  • The Better Cut a Diamond, the More Brilliant. A well cut or faceted diamond, regardless of its shape, scintillates with fire and light -- offering the greatest brilliance and value.
  • The More Pure the Color in a Diamond, the More Rare. Diamonds are graded by color, starting at D and continuing through the alphabet. Truly colorless stones, graded D, treasured for their rarity and value, are highest on the Diamond Quality Pyramid.
  • Diamonds categorized as internally flawless reveal no such inclusions. Flawless stones are at the peak of the Diamond Quality Pyramid and are treasured for their rarity and beauty. Diamonds with very, very small inclusions are graded as VVS1 or VVS2. The larger the inclusion, the lower the grade and the less rare the diamond. Inclusions that can be seen with the naked eye are graded I1 or I3.
 
About Gold
  • Today, when you buy gold jewelry, you are buying enduring beauty.
  • Gold lasts, and lasts. Since it does not rust, tarnish or corrode, gold virtually lasts forever. An example of this incredible durability is witnessed in the gold coins found in sunken galleons centuries-old - they're as bright and shiny as the day they were cast!
  • The naturally intense color and distinctive luster of gold combine to give this precious metal its unique and lasting beauty.
  • Solid gold as it is found in nature is 24 karat gold. Unfortunately, solid gold is far too soft for use in most jewelry and requires additional metals, called alloys to be mixed in to make it suitable for jewelry manufacturing. 18 karat gold has 18 parts pure gold and 6 parts alloy, 14 karat has 14 parts pure gold and 10 parts alloy and 10 karat gold has 10 parts pure gold and 14 parts alloy.
  • The desire to own gold dates back as far as the history of mankind itself. The place of gold has been extraordinary in every society. In earliest times, it assumed magical importance.

 

 
About Gemstones
  • Emerald is one of the most highly-prized of all the gems. The name comes from the Greek "smaragdos" which means green stone. The most prized is the pure grass green.
  • There are several factors that determine the value (and price) of a gemstone: color, cut, clarity and carat weight.
  • The majority of gemstones are crystallized minerals. (Important exceptions: pearl and coral are animal origin; jet and amber are vegetable.)
  • A cultured pearl is a pearl formed by an oyster, composed of concentric layers of a crystalline substance called nacre deposited around an irritant placed in the oyster's body by man. Natural pearls are formed by deposits of nacre around an irritant which accidentally lodges within the body of an oyster.

 

 
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