|
|
Judging Quality: Gemstone JewelryHow do know if a gemstone is worth its price? You need to know what to look for. Here are a few pointers. You know they're rare and one glance tells you they're beautiful. But how can you judge the quality of a gemstone when it's set into a piece of jewelry? How can you compare two similar stones to choose the one that's best? Without a GIA certificate assuring you the gemstone is perfect in every way, you need to know what to look for. These won't make you a qualified gemologist, but here are a few pointers. The Hard Stuff When you look at the stone, it should have an even brilliance, with no parts looking shadowed or dark. Experts warn that improperly cut diamonds, especially pear, oval and marquise shapes, can give a viewer an undesired "bow-tie" shadow effect when looking at it. Also on the matter of cut, be sure the facets are of an even and symmetrical size and well-polished. The outline of the stone must be even and well-defined. In terms of color, unless you are buying a fancy colored diamond, you'll want your stone to be as close to totally colorless as possible. It's that colorlessness that gives the stone the most reflective and refractive properties--in other words, what gives a diamond its sparkle.
Color Coding Just as clarity is important in a diamond, transparency and translucency are essential in colored gemstones. Because they are formed in nature, most gemstones do have some inclusions but many are invisible to the naked eye. Some gems, such as emeralds, tourmalines, peridots and rubellites, have more inclusions than other stones, but this is not always considered a negative factor if their color is strong. The Eyes Have It In fact, many of the best-designed pieces of jewelry use several different sizes and shapes of stones and different setting techniques to achieve a unique look. For example, an engagement ring may have a round, brilliant center stone held in place with six prongs, widely known as a "Tiffany" setting. The center stone might be bordered on two sides by rows of diamond baguettes (long, rectangular cut diamonds) in a channel setting, where the stones touch each other at the sides and are held in place by two railroad tracks of metal. Or, the center stone could be raised above a surface covered with tiny diamonds, known as diamond pave. Look Closely
In channel or invisible settings, where many stones are set tightly together with no metal showing, the stones should all be the exact size, shape and color. The facets should all line up and no one stone should be more prominent than another. In pave, where tiny stones are set into a gold surface and the gold is pushed up around each stone using a hand-held tool, you should see nothing but a sparkling surface of diamonds. If the surface is uneven, or one stone is higher or lower than the ones around it, it's not good workmanship. Most times, white diamonds will be pave set in platinum or white gold, but pave can be done in yellow or pink gold as well. Finally, to judge the quality of any piece of jewelry, turn it over. The back (or inside of a ring) should be just as beautiful as the front, polished and beveled nicely, not rough and unfinished-looking. If you have a piece with several stones set closely together, the metal should be cut away in square or honeycomb patterns at the back, (known as gallery work), allowing the maximum amount of light to shine through. |
|
Send E-mail to
TSN@The-Saudi.Net with questions or
comments about The Saudi Network. We are Looking for Business Sponsorship or Marketing Partnership |