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Fine Jewelry University Articles matching: “asteria square drop”
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The History of Diamond Cuts
… from the “standard” facet pattern is. The next important diamond cut is the French cut. The French cut is a square or rectangular cut diamond. It appears square when viewed from above because it is based off the octahedral shape of the … diamond. The French cut has just 9 crown facets, with the square or rhombus-shaped table facet diagonal to the square of the crown. At the four sides of the table are four triangle facets that point towards the corners of the crown. This …
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Anatomy of a Ring
… sets the stone in between two straight pieces of metal on either side of it (this style is most commonly seen with square or princess cut diamonds). As you may have guessed, all styles of head can wear thin over time and may need to be … shopping for a halo engagement ring, first look for the overall shape of halo that you like (e.g. round, cushion, square, something else), and then consider how the accent stones in the halo are set. Are they secure? Will the halo help …
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Synthetic Gems: The Whole Story
…alexandrite are very beautiful gems and very rare in their stunning beauty. These four gems have been coveted by rulers and the rich for thousands of years. But, what if anyone could own them? At gem shows and museums, I have seen jaw dropping rubies, sapphires and emeralds. These gems in high quality have put ownership beyond most people to justify the price. Just a one carat gem could cost $3,000 and more. Most of the time people don’t wear them as an engagement ring …
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Gem in the Spotlight: Amethyst
…, help hunters, guard against contagious diseases, and control evil thoughts. Amethyst was once as valuable as emeralds and rubies until very large deposits were found in multiple places around the world. Heavily increased supply dropped prices consistently over the last 200 years which is why, despite its beauty, amethyst is such an affordable stone today. About 50% of amethysts on the world market are now believed to be synthetic. This is a fairly recent discovery as …
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Diamond Buying Guide: The 4 C’s
… want. The photo above shows some common diamond carat weights and how they look in comparison to each other. Cut The Cut of a diamond has two main components. First, cut refers to the shape of the stone. Round, marquise, pear, oval, square, princess all describe the shape of the diamond. Checkout the picture above to see examples of the most popular diamond shapes. There are many more shapes than we can list here and there are even variations on the common shapes with …
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How Are Lab Grown Diamonds Made?
… and temperature to grow the diamond. The 10.02ct HPHT Diamond Made by NDT. Thanks to IGI for sharing this video. The GE invention of the belt press uses an upper and lower anvil to generate pressure over 1.5 million pounds per square inch and temperature above 2,000 degrees Celsius. In this environment, the pure carbon melts and begins to form into a diamond around the starter seed. On December 16, 1954, a belt press was used to create the first reproducible lab grown …
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Learn Secret Diamond Buying Skills From a Professional Diamond Buyer
… it to your understanding. It is their job to give you clear information to compare. The cut “C” of the 4 C’s has two components. The first component is simple. The cut can refer to the shape of the stone. Round, Marquee, Pear, Oval, Square, and Princess all describe the shape of the gem. Round diamonds are by far the most popular cut in diamonds under three carat. The diamond’s shape should be one of the earliest decisions you make. It will determine the style of ring …
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Gem in the Spotlight: Pearl
… Pearl is known for its large size and unusual shape. It weighs approximately 450 carats and is shaped like a teardrop, with a slightly elongated top section and a wider, more rounded bottom section. The pearl has a beautiful iridescent …general, the larger the pearl, the more valuable it is. Shape: Pearls come in a variety of shapes, from round to teardrop to baroque. Round pearls are typically the most valuable, while irregularly shaped pearls are generally less …
