Knowing All About Sapphires, Rubies and Emeralds Jewelry Fine jewelry, aside from the top seller diamonds, makes use of other precious gemstones, such as sapphires, rubies and emeralds, which are set-up in various, creative designs as gemstone materials for engagement rings. Here is the outlined information of each gemstone. Generally, sapphires are made up of aluminum oxide compounds, called Corundum, that are in crystalline form and which has a wide range of gemstone colors, such as the common blue, pink, yellow, green, purple. For sapphire stones, which are in a red form, they are no longer called sapphires, but rubies. Each gemstone varies in value and quality according to the jeweler’s standard guideline, which is the 4 C’s – cut, clarity, color and carat, such that the cut will depend on the jeweler’s creative design, while the clarity of the stone, color and carat value will depend on the source location of where the sapphire stone was mined, with blue and pink as high valued gemstones.
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After diamonds, sapphires are among the hardest gemstones, with a Corundum composition structure that measures a scale of 9 on a Moh’s hardness scale, which tells that sapphires have stable durability and which can be used as a gemstone ring.
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Sapphire gemstones have been historically associated with royalty and symbolize sincerity and faithfulness, such that King Solomon’s seal was believed to be made from sapphire, Prince William of England proposed to Kate Middleton with his mother’s iconic sapphire engagement ring, and 45th wedding anniversaries use sapphire as its symbolic ring celebration. Rubies have the same Corundum composition, like that of sapphires, but with the exception that it comes in a red form, which is due to the presence of chromium, being an impurity in the stone, but considered a rarity, making rubies as valuable gemstones. Rubies are classified as highly valued gemstones, especially those mined from Burma, because they are extremely rare to find, that’s why they are rarer than diamonds. They, too, are among the hardest gemstones attaining a scale of 9 in the Moh’s hardness scale, which are just like the sapphires. Emeralds come from a mineral called beryl, which is also the same mineral component in such gemstones as aquamarine, helidor, and morganite. The grass green emerald color in emeralds is due to the presence of chromium, which is actually an impurity in the composition structure of the stone, but which makes the emeralds as very rare and highly valuable gemstones, just like rubies. Depending on the color range of their green coloring, emeralds vary in their degree of value, , such that the intense grass green color is most desirable and, therefore, highly valuable compared to the pale green color, and, at the same time, their rarity, due to their uncommon presence in gem mines, makes them rarer than diamonds. Emeralds have a scale on 8 in the Moh’s scale of hardness, which means that these stones are reasonably durable, and, therefore, vulnerable to heat damage and extreme changes in temperature, which can cause them to break.