Knowing on Engagement Ring Options – Sapphires, Rubies and Emeralds Jewelry
The most common choices for precious gemstones as an engagement ring are sapphires, rubies and emeralds. The following are background facts 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. When sapphires come in a red form, it is called a ruby.
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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Associated historically with royalty and which symbolize sincerity and faithfulness, sapphires were believed to be the jewelry used in King Solomon’s seal, 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.
With the same Corundum composition, like that of sapphires, except 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, rubies are highly 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. 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.
Because they are hard to find in gemstone mines, emeralds 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.