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    • Agate

      A banded form of Quartz covered in unique and distinctive styles and patterns.

    • Amber

      A translucent fossilised resin that comes in a range of colours including, yellows, reds, whites, blacks and blues. When rubbed, amber produces static electricity. The best quality amber is clear.

    • Carnelian

      The red, orange, or amber variety of Chalcedony. It is often a solid colour, but banded examples also occur; in which case it is jointly classified as both Agate and Carnelian. Carnelian once held greater value than it does today.

    • Coral

      An organic gem, calcium carbonate with a trace of carotene, deposited by tiny sea creatures living in the depths of warm seas in huge colonies. It grows in branches that look like underwater trees. Coral is believed to be one of the oldest forms of gemstone jewellery, with some pieces dating back as far as 23,000BC.

    • Garnet

      Describes a group of several closely related minerals. Garnets come in a variety of colours however the most common colour is dark red. In descriptions ‘garnet’ tends to refer to dark red stones unless otherwise specified.

    • Jasper

      An opaque variety of Chalcedony, and is brown, yellow, or reddish, but may be used to describe other opaque colours like dark or mottled green, orange, and black. Jasper is almost always multicoloured and patterned in a unique way.

    • Labradorite

      A fairly abundant greyish mineral that shows brilliant flashes of colour (usually green, blue or red) after it is polished (called labradorescence). Labradorite is usually cut with a flat surface in order to highlight the flashes of colour. Labradorite was originally found along the coast of Labrador; it is also found in Newfoundland and other parts of Canada.

    • Onyx

      A semi-precious stone that is black and white, generally arranged in layers. It is a form of agate with parallel banding. Onyx is a species of Chalcedony

    • Peridot

      Some peridots date back to the Pharaohs! It is a light green to olive-green gemstone. The most sought after colour of Peridot is deep olive-green with a slight yellowish tint. Deeper olive-green stones are of higher value than their lighter green counterparts.

    • Rose Quartz

      Has a soft rosy colour, ranging from light to medium pink. The relative abundance of Rose Quartz mean large gemstones can be cut from it. It is the least important of the pink gemstones.

    • Smoky Quartz

      The brown "smoky" variety of quartz. It ranges in colour from light greyish brown to deep black. Smoky Quartz can be opaque, but is usually transparent to translucent. Smoky Quartz is very common and has only recently become popular.

    • Topaz

      One of the most popular gemstones. The most valuable colours of Topaz are Imperial Topaz; a golden orange-yellow and the dark pinkish-red and orange-red colours. The deeper the colour the greater the value. Topaz is widely associated with its blue incarnation which has only become widely available during the last century as a product of heat treating.

    • Zircon

      A lustrous gemstone that comes in colours ranging from golden brown to red to violet to blue. Pure zircon is colourless, but most zircon stones are brown. Zircon stones can be heat-treated to become blue or colourless.

    • Amazonite

      A semi-opaque stone that was used extensively by the Egyptians it is called the stone of courage and is said to have received its name for the Amazon women warriors who worshiped the moon goddess Diana. Some say it's name was given due to the fact that it was discovered near the Amazon River.

    • Aquamarine

      A transparent light blue or sea-green stone. Today, blue aquamarines are more highly valued, but this was not always the case. Large aquamarines are relatively common and the best ones come from Brazil.

    • Chalcedony

      A family of minerals that is often milky to grey to bluish in colour.

    • Chrysoprase

      Ranges from a light, minty-green to a deep apple-green and is the green version of Chalcedony. The unique, rich colour of Chrysoprase derives from it’s origins in nickel-rich areas.

    • Diamond

      A precious, lustrous gemstone made of highly-compressed carbon. Diamonds are one of the hardest materials known. Colours of diamonds range from colourless, yellow, orange, brown, to almost black. Coloured or ‘fancy’ diamonds can be extremely rare. The cut, colour, clarity and carat weight of a diamond are the criteria jewellers use to discern a stone’s value.

    • Jade

      A semi-precious stone that ranges in colour. Translucent jade is more highly valued than opaque jade. Jade is often cabochon cut. Stones with imperfections are usually carved. Two different minerals are known as jade: jadeite and nephrite. The Chinese have prized jade for thousands of years and regard it as having medicinal properties when worn or ingested as a powder.

    • Lapis Lazuli

      An historically popular deep blue opaque gemstone. Lapis Lazuli is chiefly composed of the mineral Lazurite and is often flecked with gold Pyrite, giving each stone a unique mysticism.

    • Moonstone

      Named for its ethereal glow that mimics moonlight. This unique play of light and colour is known as adularescence.

    • Pearl

      Organic gems grown within oysters, formed when a foreign object has made its way into the shell. The mollusc secretes nacre, and as thousands of layers of nacre coat the intruder, a pearl is formed. The most valuable pearls are perfectly symmetrical, large, naturally produced, and have a shimmering iridescence Pearls may be natural or cultured.

      Freshwater pearls are cultivated in molluscs, not oysters. They are generally elongated in shape and have a milky translucent appearance. Their wide range of interesting shapes and comparatively low value make them appeal to fashion jewellers. Mother of pearl is the iridescent coating on the inside of oyster shells.

    • Sapphire

      A precious gemstone that ranges in colour from blue to pink, to yellow to green to a variety of other colours. Sapphires are related to rubies and are often heat treated to improve their colours.

    • Tanzanite

      A deep blue to violet gem. Since its relatively recent discovery in 1967, it has become a mainstream and popular gemstone, and is used extensively in jewellery. To date, Tanzanite is found only in the Arusha region of the African country of Tanzania. It is often heat-treated in order to produce a deeper blue-violet colour.

    • Turquoise

      Significant to a number of cultures worldwide and particularly among Persian and Native American civilizations, turquoise is renowned for its intense turquoise-blue colour and is the only gemstone to have a colour named after it.

    • Amethyst

      One of the most popular gemstones which has long been considered valuable. Amethysts range in colour from light to dark purple; the deeper purple stones are the ones to go for!

    • Bloodstone

      A dark green to dark bluish-green variety of Chalcedony that is splattered with red or brown spots that resemble blood. The extent of the marking varies depending on the stone. Spots are favoured over larger stripes and markings.

    • Chrysoberyl

      A hard stone that ranges in colour from yellow, to brown, to green. Alexandrite and Cat’s Eye are both notable types of Chrysoberyl.

    • Citrine

      Citrine (from the French for 'lemon') is a rare, yellow type of quartz, a semi-precious stone that ranges in colour from pale yellow to orange to golden brown. The best quality citrine is found in Brazil.

    • Emerald

      One of the four precious stones. An intense, deep green is the most desirable colour in Emeralds. Flaws and cloudiness ('jardin’) are very common in emeralds, so stones are oiled, irradiatied, and dyed to improve their look. Synthetic emeralds have fewer imperfections and are hard to set apart from natural stones. Emeralds belong to the beryl group of stones, which have large, perfect, six-sided crystals. Emeralds were long thought to have healing powers, especially for eyesight.

    • Kunzite

      A transparent pink, light pink or light purple gemstone that resembles rose quartz and has recently gained popularity. Kunzite is also called 'evening stone', because it tends to fade in bright light. It is usually used as a large stone and is easily chipped; small stones of kunzite are difficult to cut.

    • Malachite

      An opaque semi-precious stone with layers of deep green and light green, usually found in copper mines.

    • Opal

      A semi-precious stone that is luminous and iridescent, frequently with inclusions of many colours ('fire'). Opal is a mineral and a species of quartz. There are three major types of opals: common opal, opalescent precious opal (white or black, with a rainbow-like iridescence), and fire opal (a milky stone that is orange to red in colour with no opalescence).

    • Quartz

      One of the most common and varied minerals on earth. It produces many gemstone types. Amethyst and Citrine are the most popular and valuable gem varieties of Quartz.

    • Ruby

      The most famed and fabled red gemstone, distinguished by its vibrant red colour. It is a sought after precious gem due to its durability, lustre and rarity. Ruby is the red variety of the mineral Corundum. Ruby is essentially a red Sapphire, since Ruby and Sapphire share all properties excluding colour.

    • Spinel

      Best known for its deep red variety that resembles Ruby. The two were not separated until the late 19th century when many famous old 'Rubies' were discovered to be spinel. A famous example is the Black Prince’s ruby mounted at the centre of the Crown jewels which turned out to be a huge, uncut Spinel.

    • Tourmaline

      Possesses the greatest colour range of any gemstone which varies from different angles - the lighter colours are more valuable than the darker colours. It ranges in colour from pink to green to red to purple to blue-green to colourless to black. Mined in Brazil, The Ural mountains in Russia, Namibia, Sri Lanka, and California.

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