Onyx Turquoise Fire Opal 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

Turquoise is the birthstone for the month of December and the gift given in celebration of the fifth and eleventh wedding anniversaries. Since the days of the ancient Egyptians, turquoise has been known throughout the world and has been in great demand. Turquoise was one of the first gemstones ever mined, perhaps dating back to 6000 BC, in Egypt's Sinai Peninsula. The name turquoise comes from the same French word, Turquoise, meaning Turkish, since it originally arrived in Europe through Turkey, originating in Iran. Turquoise has been mined in Iran for over 3,000 years. It has been used for thousands of years for jewelry by the Ancient Egyptians, who buried fine pieces with mummies. Aztecs fashioned elaborate turquoise masks. Today, Native Americans, especially the Zuni and Navajo peoples, produce the most renowned pieces in the US, such as turquoise and silver bracelets, necklaces, rings, earrings, pendants, brooches, and belt buckles. In the past, the stone was also used as beads in ... learn more

Mexican fire opals are named for their uniform flaming orange or cherry red body color. They are always very brightly colored, and can be a little bit cloudy to almost perfectly transparent. Transparent specimens have a good luster. Like the traditional opal, fire opals can occasionally display signs of iridescence in very bright light. Fire opals have a very low density, lower than that of glass, with which it is sometimes confused. Fire opals, like other opals, are relatively hard, rating a 5.5 to 6.5 on the hardness scale.... learn more