Know more about white sapphire vs cubic zirconia Sapphire is the blue sister of ruby. Ruby and sapphire are the same material, the mineral corundum and the second hardest gemstone after the diamond. Red corundum is known as ruby, while the rest of colours refer to synthetic sapphire. Although blue is the classic colour of sapphire, Sapphire is actually found in a wide range of colours, including yellow, pink and green. Colours of Sapphire Blue colour is the most famous of the sapphire colours. The valued Kashmir sapphires and Burmese have a deep blue and velvety. These topaz London, sapphires are not often seen in the current market. Sapphires from Sri Lanka and Madagascar are the most common nowadays at white topaz price, with a wide range of colours from light blue to dark blue. Other producers of blue sapphire are Australia, Tanzania, Thailand, Cambodia, and Montana. Colourless Corundum is rare as pale shades of colour that are almost always present. Many small white sapphires used in jewellery are synthetic. Purple sapphire is rare, but they are found in Sri Lanka and Tanzania. Impurities of iron and titanium together can cause the purple tone of the stone. Much of Yellow sapphire is on the lighter side. Heat treatment can produce greater intense golden yellow colour and sapphire treated with beryllium can be a bright yellow. Padparadscha is the word cingalese for a lotus flower of Sri Lanka lotus flower. Colour, brightness, size and clarity, would determine the value of these stones. A true padparadscha will always have a touch of pink. Many sapphires that look green composed of alternating fine bands of blue and yellow sapphire, which can be visible under the microscope. Purchase of synthetic star sapphire Colour With blue sapphire, the most popular colour, the intensity of blue is the most important factor. For example, you can have a large stone of many carats, but if the colour is a weak blue, washed, then the value of the stone will be lower. Look for a stone that has a rich blue without it being dark or inked. In general, sapphires that are too dark and inked or very light in colour are valued less. However, light blue sapphires often have a luster that is rarely found on darker stones. Lighting Sapphires are best seen with fluorescent light or daylight. Incandescent light is redder, and sapphires look less attractive in this type of lighting. Clarity Sapphire tends to be cleaner than ruby. Look for best cubic zirconia stones that are clean eyes. This means no inclusions that are visible by simple sight. Actually, the extremely fine silk in all the stone can increase the rhodolite garnet value of some sapphires. The famous sapphires of Kashmir have a velvety blue colour, which is caused by this fine silk. This silk is necessary for the star effect on sapphire star; however, too much silk weakens the colour, making it look undesirable greyish. Cutting A variety of shapes plus cutting styles are very common with sapphires. Ovals, squares, cushions, and rounded look, like other forms, such as the heart or emerald cut. Round stones can achieve a small bonus. Sapphires in cabochon cut are also common. Used for star stones, the best cabochons are a bit transparent, with smooth domes of good symmetry.
© Copyright 2020