Precious stones are minerals of great beauty, hard and very scarce. The precious stones have hardness between 8 and 10; the semiprecious ones are below this hardness. As you see, they must fulfil few characteristics so that it can be considered a precious stone. 

Minerals: Lab Created Stones are made up of high quality Minerals

Uncommon: that is not abundantly found in nature. That is, they are hard to find. 
 The diamond, the Man Made Emeralds, the Natural Blue Star Sapphire and the ruby are the only minerals that are considered precious stones. 

 Care of the precious stones

All fine jewellery must be handled and used with attentive consideration. Taking a few extra moments to clean and care for your jewellery with precious stones can make a world of difference in appearance and longevity.

Be Conscious
the first way to care for your Ruby Gem Stone and precious stones jewellery is to dress them consciously. Your jewellery should be the last thing you wear: you always wear the pieces of precious stones jewellery after applying the lacquer, perfume and cosmetics. Check the status of the links and pins before you put on your jewellery to make sure they are strong and secure. We suggest that you avoid using your gemstone jewellery in situations where you may be exposed to a rough surface, extreme temperatures, strong chemicals or severe impacts.

Carefully Store
after using jewellery with precious stones, we recommends that you clean each piece with a clean, soft, damp cloth to remove dirt, dust or oil. To protect your pieces with precious stones from scratches caused by other jewellery, always store each piece separately, or wrap each in a soft cloth before storing. Never place diamond jewellery in the same sack as jewellery with a different type of gems since diamonds can easily scratch or damage their surfaces.
 
Clean frequently
cleaning your jewellery pieces of precious stones is often the most effective way to keep them shiny as new. However, not all gems can be cleaned in the same way. Even simple soapy water can be harmful to some precious stones. As there is a wide variety of precious stones, it is important to be aware of the most effective methods of cleaning and care of each stone or mineral. Some stones are sensitive to certain chemicals and conditions; others are vulnerable to cold or heat. When buying commercial jewellery cleaner, read the label carefully to make sure it is formulated specifically for your gem. Please consult the following table before exposing your precious stones to any cleaning material.

We also recommend carrying your jewellery pieces with precious stones to perform professional cleaning eleven a year. An experienced jeweller will review the frames, brackets and clasps. Bead and bead necklaces should also be reinforced every one or two years. It is always best to ask that the cord be knotted between each pearl or bead to protect them against scratches and scratch