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Sapphires, Rubies and Emeralds as Engagement Rings

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.

Sapphires are Corundum minerals, which are basically composed of aluminum oxide compounds in crystalline form, and which comes in a variety of gemstone colors, such as blue, which is a common choice color, pink, yellow, green, purple. For red corundum minerals, they are no longer identified as sapphires, but rubies.

Sapphires are rarer than diamonds and its value depends on the 4C’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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Sapphires are among the hardest gemstones, after diamonds, due to the fact that its Corundum composition is on a Moh’s hardness scale of 9, meaning that sapphires have stable durability, which can be used as a gemstone ring.
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Sapphire stones are highly valued not just for its rarity, but also because of its historical association to royalty and its symbol of 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.

Because they are extremely rare to find, rubies are even rarer than diamonds and are classified as highly valued gemstones, especially those mined from Burma. Attaining a scale of 9 in the Moh’s hardness scale, rubies, just like sapphires, are among the hardest gemstones.

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.

Emeralds, too, are rarer than diamonds and the range of their degree of value is dependent on the range of their green coloring, such that the intense grass green color is most desirable and, therefore, highly valuable compared to the pale green color.

In the Moh’s scale, the hardness of emeralds is 8, 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.