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The Magic of Polarized Light
… see through the surface of water or only capture the reflection. Modern 3D movies: Unlike old school red and blue 3D movies, modern 3D uses two images along with a pair of glasses that have polarizing filters for lenses. This tricks your…We use polarized light on a daily basis when we put on our sunglasses, turn on our TV, or sit down at our computer. But, what is …jeweler writing about it? It turns out that polarized light is actually a very useful tool in gemology, and in this article we’ll show you why. What Is Polarized Light? Light from almost any light source travels in many different …
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Gem in the Spotlight: Opal
…, you will get different colors. Opals can display just about every color of the rainbow, but hues of green and blue are the most common. Typically the higher end opals have a darker body color, and a wide range of colors. Red carries … orange body color, many of these stones have little to no play of color. The best stones have strong greens and blues that flash through the orange body color. Boulder Opal: Boulder opals are gem opal material that still incorporates …
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How Are Lab Grown Diamonds Made?
… gems. This is because even the smallest presence of nitrogen or boron during the process can result in a yellow or blue color respectively. Both HPHT and CVD diamonds tend to exhibit strong and unusual fluorescence characteristics when …The dream of making a beautiful and valuable diamond from simple carbon has long captivated the imagination of scientists … alike. Just like the alchemists of old who sought to turn lead into gold, many have tried to achieve this impressive feat. We have only recently been able to produce gem quality, lab grown diamonds that are large enough to be used in …
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Gem in the Spotlight: Jade
…and yellowish green. Jadeite can come in many different colors including pink, purple (often called lavender jade), blue, black, white, and the most valuable/desirable color: a vibrant green. The finest of all green jadeite colors is a …Jade has one of the richest heritages of all gemstones. People have been using jade from as early as 6,000 BC, and it has been an … of Asian, Central American, and North American history ever since. But, what is jade, and what has given it such a prominent place in human history? The term “jade” actually refers to two completely different gems: nephrite and …
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Gem in the Spotlight: Spinel
… of all time. Spinel was first made in a lab over 100 years ago when scientists who were trying to synthesize blue sapphire wound up creating spinel by mistake. Since then many processes have been used and perfected to create spinel in …Spinel, the Great Imposter” sounds like the title of an action movie, but it could also be the title of this article. For years … been confused with other gems and even today is often used as a substitute for similar looking stones. In recent years, spinel has started to move out of the shadows and be appreciated in its own right, and we can see why. Its colors …
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Gem in the Spotlight: Alexandrite
… source the stone will reflect more of the accent colors of light. Since fluorescent light has a stronger greenish-blue component, the stone appears greener. Under candlelight, which has a much stronger red/orange component, the stone …Emerald by day, ruby by night, more expensive than diamond and more illustrious than sapphire, emerald, or even ruby, … most sought-after gems for the better part of 200 years. But, what makes this stone so special? Gemology of Alexandrite Alexandrite is the extremely rare, color-change variety of a gem species called Chrysoberyl. It appears bluish-…
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Is a Lab Grown Diamond Right for Me?
Picking a diamond for your engagement ring is a big decision. For most of us, buying a diamond is a significant financial undertaking, and…. Unfortunately, understanding diamonds takes a lot of specialized knowledge that most people don’t have (anyone remember their refractive indexes from high school physics?). Even more unfortunately, the diamond industry suffers from a… misinformation and paranoia both from inside the trade and from outside observers. I have heard people say that natural diamonds come with a 400% mark up, or that most mined diamonds are conflict diamonds (both wild falsehoods). On …
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Gem in the Spotlight: Tsavorite Garnet
The discovery of Tsavorite in East Africa in the 1960s changed the jewelry world. Here was a gem with the color to rival the most… and the clarity of the cleanest sapphires, all with the time tested durability of garnet. Tsavorite is a unique form of garnet with a stunningly vivid green color. It is bright and lively with a high refractive index giving it … sparkle and scintillation. Tsavorite is also a very rare gemstone. It is uncommon to find Tsavorite in sizes larger than five carats, and most faceted stones are below two carats. By some estimates, Tsavorite is around 200 times rarer…
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Understanding the Diamond Buying Game
How would you feel if your favorite soft drink tasted different in every can you drank? You expect a coke to taste like coke everywhere. In …based on price or convenience; the product is the same. People like shopping this way. I like it this way. Diamonds are not this way. The four C’s of diamonds are not that old, less than 100 years. Before that system every business and…own system. It was impossible to buy a diamond without seeing it first. The GIA four C system is supposed to be an agreed upon grading standard but in reality this is not always the case. Today, to make the grading standard more …
