Old-mine-cut diamond
The old mine cut is a type of diamond cut that was popular in the 1700s and was most prevalent during the Georgian and Victorian eras. It is similar to today's cushion cut and is characterized by a squarish girdle with gently rounded corners, a high crown, a small table, and a large, flat culet.
Old mine cut diamonds are known for their antique charm and character, and they are often used in vintage-style jewelry. They have a softer, more romantic look than modern diamond cuts, which tend to have more precise geometry and a higher level of brilliance.
Old mine cut diamonds are typically less expensive than diamonds with more modern cuts because they require less labor and material to produce. They are often used as accent stones in jewelry designs or as the main gemstone in vintage-style pieces. Despite their lower price, old mine cut diamonds can still be beautiful and valuable, and they are a popular choice for those who appreciate the unique charm and character of antique jewelry.
Platinum
Platinum is a white metallic element that is known for its strength, durability, and resistance to tarnish and corrosion. It belongs to a group of elements called the platinum group metals, which also includes osmium, iridium, palladium, rhodium, and ruthenium.
Platinum is often found in nature as an alloy, which is a mixture of two or more elements. It can be mixed with other platinum group metals or with other elements such as copper, nickel, or cobalt. It wasn't until 1804 that all of the elements in the platinum group were isolated and named, with the exception of osmium, which was not isolated until 1841.
Platinum is a highly prized metal that is often used in the manufacture of fine jewelry. It is malleable, meaning that it can be easily molded and shaped, and it is ductile, meaning that it can be drawn into thin wires or sheets. It is also very strong, which makes it suitable for use in a wide range of applications.
Platinum is named after the Spanish word "platina," which means "little silver." It is thought to have been named this because of its white metallic luster, which is similar to that of silver. Platinum was first discovered by the Spanish conquistadors in South America, near the Pinto River in present-day Columbia.
18k
18k gold is a type of gold alloy that is commonly used in jewelry making. It is made up of 75% gold and 25% other metals, such as copper, silver, or palladium. The addition of other metals helps to increase the durability and strength of the gold, making it more suitable for use in jewelry. 18k gold is softer and more prone to scratching than higher karat golds, such as 22k or 24k, but it is still a popular choice for jewelry because of its warm, yellow color and good resistance to tarnishing. It is also less expensive than higher karat golds due to the smaller amount of gold used in the alloy. 18k gold is a popular choice for engagement rings, wedding bands, and other fine jewelry items.
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