These 20 people engraved on Gucci ring mean the slogan of the ring. S925 stands for 925 silver, which is 92.5% pure silver. Because pure silver is soft and difficult to form, 7.5% other metals are added to enhance the hardness, so 925 silver has good hardness and is very suitable for making. 20 refers to the circular slogan, which is the size of your finger.