The diamond, a jewel for science Diamonds, one of the hardest materials in the world, are formed from millions of years of geological pressure and must be extracted from the mines of the depths of the earth. This labor-intensive process coupled with strict industry manipulation and marketing that leads to a perception of rarity and mysticism, drives their prices. Ethiopian opal is very famous among diamond lovers. Transparent and bright, symbol of status and power since time immemorial, diamond is the hardest mineral on the planet and the best thermal conductor. Beyond their physical qualities, few objects have the power of fascination exerted on the human being this precious stone generated millions of years ago in the interior of the Earth. Nowadays it is very easy to Buy Natural Gemstones online. Know everything about the quality and disadvantages of synthetic stones It also happens that they are so similar, that at first glance, it is difficult to differentiate a natural stone from a synthetic diamond. But we must know that the properties of synthetic diamond are subject to the manufacturing process used and may be lower or higher than natural. The lab created diamond has perfect qualities making it therefore very valuable in different fields. For example, in the industry, materials of extreme hardness are required (the natural diamond has a 10 in the Mohs scale), or the moissanite (silicon carbide), or the carborundum (an artificial abrasive). In addition, synthetic diamond is part of an elite of hard materials obtained artificially, and is intended primarily for industry, for the manufacture of industrial cutting objects, diamond hammers, diamond scalpels, etc. Thanks to its hardness, the applications of synthetic diamond are huge, for example, in medicine, field in which its hardness makes it an essential tool for precision surgeries (as in ophthalmology). Many labs created white sapphire for the sapphire lovers. Here are some tips to buy online: If you decide to go this way, it is important that you have some knowledge about diamonds like cvd diamond. Or the most likely is that you get ripped off. You have to investigate the cut, the clarity, the color and the carats of the diamonds like carnelian. The cut means the brilliance of the diamond, which is achieved through an adequate and proportional cut. If it is made in a symmetrical way, the diamond will shine properly and create a light reflection. You can get the best cut at the store from a wholesale supplier. Clarity is also important. A diamond may have visible inclusions (scratches) or inclusions that are not visible. Look for a diamond that has light inclusions or that does not have them. Basically, to the quality diamonds you cannot see the inclusions with the naked eye; you would need the help of a microscope. You can consult the clarity tables here. cz diamond are very clear. The color of the diamonds ranges from yellow to translucent and colorless. Yellow diamonds are less expensive. The colorless diamonds are of better quality, and are prettier. The carat is one of the most obvious elements. Each carat has 100 different points in the diamond. So your diamond can vary from ½ carat or less to 4 or 5 carat. Obviously your budget is something important. Keep this thing in mind before you buy gemstones online.