New Holly Yashs healing leaf necklace design. Petit and elegant healing leaf necklace shimmers in shades of green to blue, is artisan handcrafted in California from nobium, a precious metal related to titanium ... but more valuable. Nobium is 100% hypoalergenic, extremely strong and possesses the chameleon-like ability to take on vibrant colors. Each Holly Yashi piece is a potential collector's item. The sterling silver chain measures 16 inches and has an extender allowing for an additional 4 inches in length. Tag marked with the Holly Yashi leaf logo and the initials HY make this an authentic Holly Yashi design.