Jewelry : Ring Stone - Larimar Stone Size -  12 x 10 mm (approx) Product Weight : 3.69 Gram. Metal - 925 Sterling Silver Metal Stamp - 925 Larimar is not only a rare and beautiful stone reminiscent of the clear blue waters that surround the area that it comes from in the Caribbean, but it is said to be a stone that promotes feelings of serenity and works on the throat chakra, opening the doors of communication helping us to speak from the heart while aiding emotional strength and stability.