The rarest precious stones are selected for their exceptional beauty, purity and hardness. Their quality is also assessed based on their carat weight, color and shape. Only 4 stones in the world are now considered the most precious in the world.
The diamond is presented as the most precious stone in the world. Exceptionally hard, it has the reputation of being eternal. Being able to reflect almost all of the light it perceives, the diamond is the brightest and most dazzling stone there is. Thanks to its incredible properties, it is used in jewelry to symbolize eternal love. It is mainly known in white color but exists naturally in all shades of the rainbow. Pink, green and blue diamonds remain the rarest and therefore the most expensive in the world. The Rapaport Diamond Report, is an international reference for diamond expertise.
The emerald, very famous for its very particular green color, is considered the second most precious stone. Because of its particularities, it is more difficult to form and therefore to find. Precious stone par excellence of the Maharadjas, it has been a symbol of power and wealth since the dawn of time.
The sapphire and the ruby are the two other precious stones par excellence. Both from the corundum family, they are recognizable by their bright blue and red. The sapphire can be of all colors, some much rarer than others like the Padparadscha sapphires of an incredible salmon orange. As for the most beautiful blue sapphires, they often come from Cashmere and have a royal blue of incredible nobility. The ruby also has an ideal color, a so-called pigeon blood red and often comes from Burma. It is very rare today to find beautiful natural and untreated rubies, which makes it one of the most precious and sought-after stones in jewelry.
A second-hand jewelry store since 1985 in Lyon, Gemme has unique expertise in the sale of 18-carat gold jewelry set with diamonds, rubies, sapphires, and emeralds. Our expertise in gemology as well as ancient and contemporary jewelry art allows us to accurately estimate your jeweled jewelry.