Pleasant medium-light pink Sapphire from the worldwide capital of all Sapphires- Sri Lanka. If you like lighter pink colours, you will not be disappointed by this stone. With good brilliance and clarity it is just shy of eye clean, only two defects slightly visible with careful inspection. The more significant of the two is a small chip near the edge, but it can be covered during the setting of this stone. All minute inclusions you can see on the pictures are in fact too small to be seen with your naked eye so please do not take them into account, they are only visible here due to the extraordinary large size of our pictures. There’s also a small window in the center of the stone but it should close nicely after setting. All in all it is a very nice stone with its good clarity and attractive colour that will make any pink loving girl happy.
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Sapphire is a gem quality corundum of all colours except for red, which is termed as ruby. Chemically it is an aluminium oxide crystallised in a trigonal system. The name sapphire is traditionally associated with blue hue but there are many other colours, generally described as fancy sapphires. Possible varieties include- colourless, yellow, greenish, pink, purple, orange, brown, black and the most expensive and famous of fancy sapphires, pink-orange stones named Padparadscha. When considering a sapphire purchase, colour is the most important factor. For blue stones it is a strength and purity of primary blue hue that is a basis for a valuation, it can be increased by a slight percentage of violet or decreased by green or grey mask. For fancy sapphires it is a general strength of colour decreased by grey or brown tones. Inclusions are of secondary consideration as they are present in most sapphires, plus they are not necessary a bad thing as they help with identification of possible treatments and origin of the stone.
Synthetic sapphires were already commercially available at the end of 19th century and are widely used in commercial level jewels today. Treatments used on sapphires include a traditional heat treatment, practiced already in Roman times. It can improve colour and clarity of the stones and is completely safe, permanent practice. There are more modern ways of improving sapphires like a beryllium treatment in which stones are heated just below the melting point to allow beryllium to penetrate its structure. This treatment changes colour dramatically and can vary in depth from shallow to a one that penetrates gem completely. Berylium treated stones are considerably cheaper than natural ones or heated ones and the treatment is usually not easy to detect. Other possible treatments include fracture filling, which nowdays is widely used for treatment of rubies.
Sapphires have hardness of 9 and are very durable in any jewellery application. They can be cleaned in ultrasonic cleaners as long as there are no liquid inclusions but steam cleaners are not recommended. The best way to clean your stones is to use soft toothbrush under running water and dry them with soft cloth.