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The majority of gemstones are minerals that have been crystallised by natural elements within the Earth’s crust. Important exceptions are pearls and coral which are of animal origin and jet and amber which are vegetables. Only a small quantity of the Earth’s minerals qualify as gemstones due to their beauty, durability, colour and rarity. Fine quality gemstones include alexandrite, amber, amethyst, aquamarine, chrysoberyl, citrine, emerald, garnet, iolite, jade, kunzite, lapis lazuli, moonstone, opal, peridot, ruby, sapphire, spinal, tanzanite, topaz, tourmaline, tsavorite, turquoise and zircon. Each of these gemstones have their own unique colour, identity and quality. The value of coloured gemstones are determined in the same fashion as for diamonds: Cut, Colour, Clarity and Carat Weight.


There is no right or wrong colour when it comes to coloured gemstones and there are thousands of different shades. Your selection should be made based on your own personal taste.


The clarity of a gemstone refers to the number of inclusions or flaws in the stone. It is important to remember that completely flawless gemstones are extremely rare and, whilst clarity is important, in many cases an inclusion in a coloured gemstone can add individuality to the stone.


A proper cut in a gemstone can emphasise the richness of the stone’s colour and can enhance the natural beauty of the stone.

Carat Weight

As with diamonds, the gemstones weight can also affect its value. It is important to note that Carat Weight is a measurement of weight and does not necessarily reflect the size or diameter of the stone.

Synthetic Stones

A synthetic stone is a man-made material with the same physical properties, chemical composition and crystal structure of a natural gemstone. Synthetic gemstones are sometimes called “lab-created”, “created” or “man-made”. Synthetic gemstones may look similar to natural gemstones, but do not have the rarity and uniqueness of a
natural stone and therefore are not as valuable.