Onyx Aquamarine Pink Tourmaline Rings in 14K Gold

Onyx is the birthstone for Leos and the anniversary gemstone for the 7th year of marriage. Black Onyx is the anniversary gemstone for the 10th year of marriage. Onyx is a variety of the microcrystalline quartz, called chalcedony. The name "chalcedony"" comes from Calcedon or Calchedon, an ancient port on the Sea of Marmara in Asia Minor. Ornamental materials were once mined in that area and it was an active center for trading various stones. Onyx were used widely in the past as bases and handles for gold items, as well as for stone inlay work. Onyx seals were very popular with the Romans, who carved the pattern of the seal in negative relief to give a raised point. They often used stones with several layers, each of a different color, which were then individually carved to produce a different pattern each year. They originally used the onyx name for a variety of marble having white and yellow veins. Onyx is the Greek word for ""claw"" or ""fingernail"" because these veins resemble the ... learn more

Aquamarine is the March birthstone. The seawater color of the mineral has given this gemstone the name "aquamarine," derived from the Latin word for seawater. The term "aquamarine" was used in an essential gemological work by Anselmus de Boodt, published in 1609. Aquamarine is a valued gem with a long history. In the 19th century, sea green varieties of the stone were the most popular. Today, the more blue the color, the more valuable the stone. In 1910, the largest aquamarine was found in Brazil. It weighed 243 pounds. It was then cut into smaller gems that weighed more than 200,000 carats.... learn more

Tourmaline is the alternate birthstone for October, along with the opal. The stone was first discovered by Dutch traders off the West Coast of Italy in the late 1600's or early 1700's. The name tourmaline comes from the Sinhalese term "turmali,"" which was the name given to all colored crystals on the island of Sri Lanka at that time. This all inclusive name indicates the inability of ancient gem dealers to differentiate tourmaline from other stones. In fact, at one time in history, pink and red tourmaline were thought to be rubies. Pink tourmaline tends to be pinker in color than ruby. However, their similarities in appearance are so strong that the stones in the Russian crown jewels believed to be rubies for centuries, are now thought to be tourmalines"... learn more