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By Author: Michael Price
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Diamond and fine jewelry retailer Shenoa has been in business for over 25 years. Over this time they have always been sure of one thing: romance is still alive and well, despite what some skeptics might believe. Diamond engagement rings are still as popular as they ever were, and presenting an engagement ring in a proposal of marriage is a tradition that survives and thrives. One of the best things about being in the diamond and fine jewelry business is that you get to continually see how healthy romance is—even if you sell diamonds and fine jewelry online. The people at Shenoa appreciate what their products stand for, and appreciate what these products represent for the customers who buy them.

When customers call Shenoa about possible purchases, they often ask what would be best for different romantic occasions. For example, people know that they will only have one chance to ask someone to marry them for the first time. Though love can conquer all, the right engagement ring can help tip the scales toward not having anything that needs conquering. Planning on putting an engagement ring on someone's finger can ...
... often be nerve wracking enough, and it can certainly help to know that you've probably chosen just the right ring for the occasion. The people at Shenoa understand what is behind the choice of an engagement ring or engagement and wedding ring set, and they work hard to help buyers make the right choice the first time.

It isn't just engagement rings that should take careful consideration. Birthday jewelry, anniversary rings, or simply gifts of diamond jewelry or other types of fine jewelry are purchased for many different reasons; many of them romantically based. If you have been lucky enough to have been happily married to the same person for 60 years, you have reached your diamond anniversary. Anyone who thinks that there is no romance in a marriage that has lasted that long is wrong. What is more romantic than a couple who has been devoted to each other for 60 years?

Interesting Facts About Diamonds:

Electrical conductivity

Other specialized applications also exist or are being developed, including use as semiconductors: some blue diamonds are natural semiconductors, in contrast to most other diamonds, which are excellent electrical insulators. The conductivity and blue color originate from the boron impurity. Boron substitutes for carbon atoms in the diamond lattice, donating a hole into the valence band.
Substantial conductivity is commonly observed in nominally undoped diamond grown by chemical vapor deposition. This conductivity is associated with hydrogen-related species adsorbed at the surface, and it can be removed by annealing or other surface treatments.

Toughness

Toughness relates to a material's ability to resist breakage from forceful impact. The toughness of natural diamond has been measured as 2.0 MPa m1/2, and the critical stress intensity factor is 3.4 MN m-3/2. Those values are good compared to other gemstones, but poor compared to most engineering materials. As with any material, the macroscopic geometry of a diamond contributes to its resistance to breakage. Diamond has a cleavage plane and is therefore more fragile in some orientations than others. Diamond cutters use this attribute to cleave some stones, prior to faceting.

Color

Brown colored diamonds at the National Museum of Natural History
Gem quality diamond may be colorless or occur in any hue including the non-spectral hues of gray, brown and black. Diamond is the only gemstone composed of a single element, carbon. The diamond crystal lattice is exceptionally strong and only atoms of nitrogen, boron, hydrogen, phosphorus and maybe beryllium can be introduced into diamond during the growth at significant concentrations. Transition metals Ni and Co, which are commonly used for growth of synthetic diamond by the high-pressure high-temperature techniques, have been detected in diamond as individual atoms, however the maximum concentration is 0.01% for Ni and even much less for Co. Note however, that virtually any element can be introduced in diamond by ion implantation.

Nitrogen is by far the most common impurity found in gem diamonds. Nitrogen is responsible for the yellow and brown in diamonds. Boron is responsible for the gray blue colors. Color in diamond has two additional sources: irradiation (usually by alpha particles), that causes the color in green diamonds; and physical deformation of the diamond crystal known as plastic deformation. Plastic deformation is the cause of color in some brown and perhaps pink and red diamonds. In order of rarity, colorless diamond, by far the most common, is followed by yellow and brown, by far the most common colors, then by blue, green, black, translucent white, pink, violet, orange, purple, and the rarest, red. "Black," or Carbonado, diamonds are not truly black, but rather contain numerous dark inclusions that give the gems their dark appearance. Colored diamonds contain impurities or structural defects that cause the coloration, while pure or nearly pure diamonds are transparent and colorless. Most diamond impurities replace a carbon atom in the crystal lattice, known as a carbon flaw. The most common impurity, nitrogen, causes a slight to intense yellow coloration depending upon the type and concentration of nitrogen present. The Gemological Institute of America (GIA) classifies low saturation yellow and brown diamonds as diamonds in the normal color range, and applies a grading scale from 'D' (colorless) to 'Z' (light yellow). Diamonds of a different color, such as blue, are called fancy colored diamonds, and fall under a different grading scale.
In 2008, the Wittelsbach Diamond, a 35.56 carats (7.11 g) blue diamond once belonging to the King of Spain, fetched over US$24 million at a Christie's auction.[20] In 2009 a 7.03 carats (1.41 g) blue diamond fetched the highest price per-carat ever paid for a diamond when it was sold at auction for 10.5 million Swiss francs (6.97 million Euro or US$9.5 million at the time) which is in excess of US$1.3 million per carat.
Shenoa is the internet's premier destination for jewelry and diamonds. Shenoa knows high quality.