Diamonds And Precious Gems

Simple, elegant and always beautiful – diamond stud earrings These are a classic gift choice. Whatever the occasion, diamond studs are a great gift. It doesn't matter what age. They are welcome gifts at any age. You've got to agree with me that diamond earrings are an essential and versatile part of any woman’s collection. Men's too for that matter. They always fit the occasion – and uplift any mood – from denim to dinner parties, from boardroom presentations to an evening at the symphony, and everything in between. Diamond earrings are worn so close to the face. This give a person's appearance a genuine enhancement . The flash of a precision-cut stone will complement and enhance the wearer's appearance. And when you choose diamond earrings set Signature Diamonds, you know that you’re getting diamonds cut to the highest quality Signature diamonds are the top of performance standards in the industry – diamonds that sparkle with brillian...

Lab grown diamonds have been called by many names: sometimes synthetic diamonds, man made diamonds, artificial diamonds, manufactured diamonds, foundry diamonds and even cultured diamonds. All have been used. In July this year (2018) the Federal Trade Commission ruled that the terms lab grown diamonds, man made diamonds, and foundry diamonds are ones to be used to qualify the term cultured diamond. While the term synthetic should not be used when talking about lab grown diamonds, specifically when marketing lab grown diamonds. Up until this point the Gemological Institute of America has been using the term synthetics when referring to lab grown diamonds, so I guess we'll see what happens. But I'm guessing they will not have much choice but have to update their synthetic diamond grading terminology. The FTC also ruled that cultured diamond should not be used on its own when referring to lab grown diamonds as the term does not distinguish itself sufficiently from mined diam...

Carbon on its own cannot form into diamonds even deep below the surface of the Earth. There are a few things that have to happen in just the right way. First of all the subsurface carbon is located about 150 km below the Earth's crust has to be subjected to immense heat and pressure. Coal and diamonds are both composed primarily of carbon. Their chemical structures have marked differences. Coal is formed from highly impure carbon. This carbon generally contains  the following elements: oxygen, selenium, hydrogen, nitrogen and sulfur. Diamonds on the other hand require an absolutely pure source of carbon. If there is any defect in purity the diamond will generally change color or become too included to be worked by diamond jewelers. When carbon sources which are very pure such as carbon dioxide are trapped deep under the Earth’s surface, conditions are ideal for the formation of diamonds. 725,000 PSI is about the level of pressure needed to compress the carbon into a di...

The emerald cut diamond is an oblong cut diamond with truncated corners. Emerald cut diamonds are also referred to as "Cut-Cornered Rectangular Modified Brilliant." It is an ideal shape for showing off the warmer tones of a stone. There are other shapes which are better suited for displaying elements such as sparkle, fire, and brilliance. The shape of emerald cut diamonds show off both the color and the clarity of a diamond. It is a little harder to to avoid seeing the inclusions in an emerald cut diamond so the higher clarity grades are more highly sought after when an emerald cut is purchased. Ring settings which feature emerald cut diamonds as the main stone often include side stones. This is found to greatly enhance the center diamond. An interesting feature of emerald cut diamonds is that they look bigger for their carat weight than a great deal of other types of cuts. People who want a big rock, and would rather have less sparkle than a traditional round cut bril...

Every individual diamond is unique. Every individual person is unique. Diamonds are graded by individuals. So it could easily be assumed that the same diamond, if graded by two different people, would receive two differing grades. This can be the case, though some more widely recognized laboratories have a greater degree of consistency across the board than smaller laboratories. In June 2013, the Rapaport Diamond Trading Network (RapNet)  got back the results from 10 diamonds graded by half a dozen different brands of diamond grading laboratories. The degree of variance between grading laboratories was not always extreme though one thing was clear: some laboratories are stricter. The GIA labs ranked as the ones demanding the highest quality for a diamond to receive a high grade. An article on RapNet's analysis was published here: http://www.diamonds.net/news/NewsItem.aspx?ArticleID=43417 There was a surprise, though, in that IGI labs were almost on par...

What shape diamond are you going to get for the engagement ring? Round? Square? Oval? Pear? Heart? They're all so nice! It can be difficult to choose. You could be after a shape that is popular or maybe you want to try something a little different. Some diamond cutters have created their own improvements and sell these diamonds directly. This is called a Signature Cut. The way these diamonds look are pretty impressive and very dazzling. Diamonds are already quite hypnotic, but signature cuts particularly super ideal cut diamonds are just unbelievable.   If you look at the statistics on a site like mega diamond seller Blue Nile you'll see that most people end up choosing round diamonds. The reason that round shaped diamonds, (technically called round brilliants ) are such good sellers is because they are known to be designed in such a clever way that a larger proportion of light bounces back through the top of the diamond giving it a superior sparkle. Becau...

Fluorescence in diamonds is one of those things that can be confusing. Does it make the diamond glow in the dark? How does fluorescence affect the brilliance of a diamond in regular light? And if so, how? To answer the first question, a fluorescent diamond may glow a little in the dark, but it will more likely glow under black light (UV light). And to answer the second question there are a few points which might help cut through some of the confusion surrounding fluorescence. There are two seemingly contradictory things about fluorescence. 1. Strong fluorescence can give the diamond a milky look. 2. Fluorescence does not always give the diamond a milky look. How can both of these things be true? Here's why: One in 50,000 diamonds with strong fluorescence will look milky, but even then it will only be in certain lighting. As a result of this slight risk, jewelers don't try to push the fluorescent diamonds. They even discount them. Diamon...