SUITABLE FOR DAILY WEAR
Corundum (gem family of ruby and sapphire) is the second hardest gem material in the world, second only to diamond. This means sapphire can only be scratched by another sapphire or a diamond. This also means that unlike other coloured gemstones, contact with dust, which contains high quantities of silica will not scratch a sapphire.
Corundum also has excellent toughness and no cleavage (tougher than diamonds). This means that sapphires are not prone to cracking, chipping or breaking.
These qualities make natural unheated sapphire a highly durable gemstone suitable for daily wear. Natural sapphires are also stable under normal wearing conditions such as light, heat and common chemicals. However, even mild acids like lemon juice can damage fracture-filled sapphire.
Safest and easiest way to clean sapphire is to wash it in warm soapy water and wipe it with a gem cleaning cloth. Once set in jewellery, use a soft brush to clean through the setting. It is important clean the pavillion of the stone to maintain high brilliance.
Ultrasonic cleaners are NOT suitable for gemstone cleaning; natural features of a gemstone may lead for the gemstone to crack when in ultrasonic or under temperature changes.
You do not need to use chemicals to clean your stone. Due to its hardness sapphire can take a high quality polish and therefore washing in soapy water is more than sufficient.
STORING SAPPHIRE JEWELLERY
When storing loose gemstones or jewellery take a good care not to let them touch one another and that each piece is stored separately. As a hard gem material, sapphire can scratch softer gemstones, other sapphires or precious metal such as gold or platinum. And as diamonds are harder than sapphires, it can scratch sapphires.
After all it is a precious item, take good care.