seeing that you have acquired such a lovely pair of jade earrings, no doubt you will be interested to learn how the beautiful stone "Jade" actually got its name.
The name "Jade" comes from the Spanish piedra de ijada which means loin stone , the name given to it by the Spanish conquistadors in the 16th century, based on the belief that it eased kidney pains. Some time later, European physicians called it, lapis nephriticus which translates to - "kidney stone" and from where Nephrite (a variety of Jade) came to get its name, basically for the same healing qualities Jade gemstone seems to possess - kidney problems.
Jadeite is the superior and much rarer of the two gemstones.
Gemstones have been used for healing in many cultures for centuries. You can read more about healing gemstones in Indian Astrology.
Your pair of vintage jade earrings, I think could have been made by SULTON Co. (Honolulu, HI, USA) - ca 1920s - 1990s. This jewelry retailer used the letter S in a three pointed crown.
