Vintage Santo Domingo Sterling Graduated Turquoise Heishi Necklace. This beautiful sterling necklace is 18 inches long including the hook and eye clasp. The center heishi is 8 MM in width and they graduate down to 4 MM on either end. The heishi is in wonderful condition all strung on some sort of sturdy cord. The turquoise is a lovely shade of bright blue with light colored inclusion or matrix. All in wonderful vintage condition, findings tested and guaranteed sterling. Get Supersized Images & Free Image Hosting. Create your brand with Auctiva's. Attention Sellers - Get Templates Image Hosting, Scheduling at Auctiva. The item "Vintage Santo Domingo Sterling Graduated Turquoise Heishi Necklace" is in sale since Tuesday, June 18, 2019. This item is in the category "Jewelry & Watches\Ethnic, Regional & Tribal\Native American\Necklaces & Pendants". The seller is "silver_gallery" and is located in Dragoon, Arizona. This item can be shipped to United States.