Why blend in when you were born to stand out. — Dr. Seuss Our Herkimer Diamond Necklace is one of our customer favorites. Herkimer diamonds are unusually double terminated crystals with a brilliant sparkle, manifesting pure, solid light and are powerful amplifiers of spiritual energy. Attached on two sides with a delicate, yet sturdy chain of 14k gold fill or sterling silver, each stone is unique, color, and shape. Made in USA….handmade with care and love in our San Diego, CA studio! Product DETAILS wire wrapped herkimer diamond herkimer diamond measures approx 10mm x 9mm x 6mm 1.5mm dainty cable chain 16", 18", or 20" chain length option for adjustable length extender Materials Quality you can wear everyday! Gold Filled It won't chip or flake, is waterproof, and the best alternative for cost and quality to solid gold. Made with a layer of solid 14k gold that is pressure bonded to brass, gold fill has 100 times more gold than plated jewelry. Rose Gold Filled Rose gold fill has the same characteristics as the yellow gold fill, but copper is added to give it the rose color. Sterling Silver 925 silver is a durable precious metal that can last a lifetime. It can oxidize(tarnish) over time or when exposed to certain elements, but can be polished back to its normal condition.