Herkimer Diamond Stud Earring -Gold Filled- ✴︎Single✴︎Genuine Herkimer Diamond single stud earring 14k gold filled prong setting approx. measurements a. 7. 2mm x 5. 8mm b. 6mm x 3. 4mm c. 5. 6mm x 3. 5mm d. 3. 1mm x 2. 7mm *Herkimer Diamonds are double terminated quartz crystal. They are known as one of the most powerful of all quartz crystals and often used in meditations. They act as powerful amplifiers when you are using them with other gemstones. Herkimer Diamonds clears chakras and purifies