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Precious Gemstones

precious gemstones


Colour is the key factor in assessing a good ruby, the more bright and vivid the colour, the better. As almost all rubies carry inclusions, it is desirable to ensure that the position of these impurities does not detract from the stones brightness. A good cut adds to the beauty as a well-cut faceted ruby reflects light back evenly across its surface. If the stone is too deep and narrow, areas will be dark. If it is too shallow and wide, parts of the stone will appear washed-out and lifeless.

We select heart shaped rubies that vary in colour from pink/purple through deep red. They are all evenly cut to ensure maximum radiance and are also calibrated to fit our range of mounts.


Although sapphires can be found in almost any colour, blue is the colour normally associated with it. Cornflower blue is the standard that
sapphires are measured against. A light and watery blue colour or dark, almost black sapphire is not at all desirable. The brilliance of a stone can be almost as important as its actual hue. Therefore the next most important factor affecting worth is clarity. A stone, which is relatively free of inclusions, will transmit more light, and therefore appear more brilliant. Clear transparent sapphires with no visible flaws are the most sought after.

The colour of the sapphires that we select varies between bright blue through royal blue and all are expertly cut and calibrated to fit into our Diamond Rings.


When choosing an emerald, the most important value factor to consider is their colour. Attractive bright stones with a light green colour are much sought after, excluding other factors, the more vivid the green, the more valuable the emerald.

In contrast to other beryl gemstones, emerald is typically heavily flawed with cracks and inclusions of fluid and minerals. These inclusions are called "jardin" (from the French for garden) as they typically resemble leaves and branches. These characteristics are not looked

upon as negative aspects for emerald as they would be for other gemstones. Indeed, these inclusions are considered part of the character of the stone and are used to assure the purchaser that the stone is genuine. Because emeralds are so rare without inclusions, their presence does not overly detract from the value of the emerald. Most emeralds on the market today have been treated with various types of oil or resin to improve their strength and

Emerald is a medium hard gemstone and is very heat sensitive. The typical inclusions can affect the durability, so emerald is easyto chip. Lastly the oil treatment can be leached when the stone is cleaned, causing the gem's appearance to change. Extreme care must be taken when working with emerald set jewellery and the wearer needs to treat the gem with care.

Emerald is one of the most difficult gemstones to cut because of the high value of the rough stone and the many inclusions found in crystals. Small changes in orientation can make a large difference in the final appearance of the gem. Skilled craftsmen who specialise in cutting emerald can be found in cities around the world for jewellers who insist on having stones perfected for the optimum brilliance and vibrancy.

Emeralds are cut in Jaipur, India and Tel-Aviv, Israel as well as in the mining countries.