Sapphire is of the corundum class of minerals. The presence of trace impurities of iron and titanium is responsible for that beautiful, vibrant, deep blue color. It is an extremely hard and durable gemstone. Sapphires are available in virtually all colors but red. Red Sapphires are known as Rubies. Blue Sapphires are the most valuable, followed by Pink and Padparadscha Sapphires. Padparadscha Sapphires have orange pink or pink orange coloration and rival Blue Sapphires in value.
Amethyst is a form of quartz, with a silicon dioxide composition .The primary ingredient is sand. The majority of quartz samples are clear, but amethyst derives it's beautiful purple appearance due to small amounts of iron impurities in the crystal lattice.
Opal is a hydrated silica (SiO2.nH2O) with a water content within the mineral structure. Precious Opal contains 6% - 10% water and consists of small silica spheres arranged in an orderly three dimensional structure. It is created by percolating water in or near sedimentary volcanic ash that dissolves silica of shells, bones and woods, "fossilizing" them into opal. Opal is not a particularly hard stone so care must be taken to preserve the natural beauty of this gem .
Emeralds are a gemstone from the Beryl family of stones. They have a stunning green color.It gets its characteristic emerald green color from traces of chromium in the crystal matrix. Emeralds of excellent quality which exceed a carat frequently are valued above diamonds. Inclusions caused by calcite deposits are typical in emeralds and color saturation and hue are a bigger factor in determining the value of an Emerald.
Trace amounts of chromium gives Ruby its bright red color . Ruby is a term for red gemstones derived from the mineral corundum, formed primarily from aluminum oxide.A Ruby is actually a Sapphire of red color. It is an extremeley hard and durable gemstone, well suited for all jewelry applications. Top quality Rubies are highly prized, and in larger sizes are frequently valued above all other gemstones, including Diamonds. Rubies over two carats are extremely rare and valuable.
This gemstone belongs to Saturn. Blue sapphire is an expensive gem and gives tremedous benefits to the wearer. Blue sapphire can be worn with a great advantage by heart patients, Blue sapphire also protects the wearers against risks of accidents and against the dangers of fire, strom and natural calamites.
Coral is calcium carbonate with a trade of carotene. Its color ranges from white to red. It grows in branches that look like underwater trees. Coral is created by sea life or marine life. It is the skeletal remains of coral polyps. Coral is especially fragile. Protect coral from scratches and sharp blows. Also avoid large temperature changes . The coral traditionally used in jewelry is Corallium rubrum and Corallium japonicum.The most valuable colors of coral are red, black, and pink, which is known as angel skin coral.
Pearl is formed in shellfish as a reactant to an irritant such as a piece of sand. Cultured pearls are created by adding a piece of mussel or shell inside of an oyster of mussel. This then creates a pearl as layers of the inside of the shell grow over the added substance.The price of pearls vary widely as a result of luster, size, how they were grown, color and type. Natural pearls are the most expensive, followed by cultured pearls. Fresh water pearls tend to be relatively inexpensive. Pearl is a classic piece of jewelry.
Garnet is a naturally occurring gemstone. Its name comes from Latin "granatus" meaning seed, because it often resembles small round seeds when found in its matrix rock.Demantoid garnet is a rare and beautiful bright grass green sub-variety of andradite garnet.Tsavolite, is a bright green variety of grossular garnet, its colour being induced by the presence of chromium.
| Amber is one of the organic gemstones, being the time-hardened fossilized resin of pine trees, the now extinct Pinus Succinifera, and others. As such it varies from about 20 to 60 million years old. It is light and warm to the touch, and readily produces static electricity when rubbed. Well preserved specimens of extinct insects and plant material, have been found in amber. |
