The stone, usually gray-green, dark gray, black or grayish-white, is composed in aggregate layers. Labradorite displays a metallic lustre called labradorescence in tints of blue and green. The predominant blue varies within the light, displaying hues from deepest blue to various shades of pale, almost blue-green. Labradorite is named after the Canadian province of Labrador, the classic locality of this gemstone. Labradorite is often heavily flawed with internal dark lines and streaks, stones that are clean of flaws are rare.
Purple Amethyst has been highly esteemed throughout the ages for its stunning beauty. Amethyst ranges in hue from pale red-violet to deep violet, and may be transparent or opaque. The stone changes its colour on being heated. Some Amethysts pale almost to colourlessness in daylight.
Garnet is found the world over, and though commonly known to be red, it is in fact found in a variety of colors. The distinctive title Garnet is derived from the Latin name Granatum, a pomegranate, because of the resemblance the granular varieties of Garnet bears to the seeds of the fruit. Vessonite which is green in colour is also a type of Garnet.
Lapis Lazuli is one of the most sought after stones in use. Its deep, celestial blue remains the symbol of royalty. A beautiful deep blue in color with gold flecks (pyrite)Lapis lazuli is still considered to be one of the most important opaque blue gemstones. Lapis usually forms in crystalline marble. It is an all time classic semi precious stone when set in silver.
The moonstone is characterised by an enchanting play of light. It owes its name to that mysterious shimmer which always looks different when the stone is moved. The cause of it is the lamellar inner construction of the gemstone which scatters the light to create a unique light effect. Thesecolours, with the fine shimmer, make it an ideal gemstone for jewellery. Moonstones come in a variety of colors, ranging from colorless to white, gray, brown, yellow, orange, green, or pink. Clarity ranges from transparent to translucent.
Tourmalines derivetheir name from the Sinhalese term “turamali”, which means “stone of mixed colors”. The very name refers to the unique spectrum of colors displayed by this semi precious stone. One of the most versatile of gemstones, tourmaline is available in every color. The colours vary in tones from pastel to dark, and can exhibit various colors in the same stone. Crystals with only one colour are rare. Beautiful multi-coloured tourmalines are particularly well suited to jewellery, for each of these stones is different.
Smoky (Smokey) Quartz is a popular variety of Quartz, which is sometimes used for unusual faceted cuts. The color of smoky quartz varies. It can be brown, smoky-gray or black. There are relatively few gemstones that occur in dark-brown or black.
Chalcedony is a gemstone species which belongs to the quartz group of minerals. It can be virtually any color of the rainbow – commonly pale blue, yellow, brown or gray with nearly waxlike luster. The gemstone ‘Chalcedony’ is distinguished by translucency and its solid, lighter color, typically ranging from bluish to white or gray.
Prehnite is typically semi-transparent to translucent Its color is usually yellow-green to apple-green. Prehnite is one of the rarer and lesser-known gems. Thus, it is primarily a collector’s stone. Although its use in jewellery is not common, it is becoming more and more popular.
Carnelian is classified by its distinct color and is defined as a red-orange to brownish-red variety of Chalcedony quartz. Carnelian obtains its color through iron impurities that form within colorless quartz crystal. It is also referred to as ‘cornelian’, was thought to have been named after the color of the cornel cherry. Carnelian is easily identified by its distinct orange to brown-red color.
Jasper is one of the many gemstone varieties of quartz available today. The name ‘jasper’ is derived from the Greek word for ‘spotted stone’, referring to its typical multicolored, striped, spotted or flamed appearance. Jasper can form in virtually any color.
Citrine is one of the most durable of semi precious gemstones. Named after the French name for lemon, “citron”, Citrine can be found in yellow, gold to orange-brown shades of transparent quartz and is are one of the most classic gemstone used to make jewellery.
Onyx is described as a solid black Chalcedony, or a banded or layered black and white Chalcedony. In its solid black form, Onyx is the most traditional black gem stone. Sardonyx is a variant in which the colored bands are Sard (shades of red) rather than black. Black onyx is perhaps the most famous variety, but is not as common as onyx with colored bands. Artificial treatments have been used since ancient times to produce both the black color in “black onyx” and the reds and yellows in sardonyx.
Peridot is a gemstone which comes from the mineral olivine, it has a distinctive olive or bottle green colour due to the presence of iron.Peridot is one of the few semi-precious gemstones found in only one color.
Iolite is usually purplish blue when cut properly, with a softness to the color that is quite attractive. The favourite colour is violet blue that is unlike other gemstones. A property called pleochroism is very pronounced in Iolite, producing different colors when the stone is seen through different positions It is also referred to as “Water Sapphire” or Dichroite.