Turquoise set in rings dates back millennia and it is every popular today in antique and vintage estate rings from the inexpensive to the luxurious. This December birthstone's hues range from robin's egg blue to sea green and is often set in yellow gold. Estate pieces dazzle with diamonds, Persian turquoise astounds with its vivid colors. And American turquoise is often veined, each one a unique gem of the earth. Shop our constantly changing selections, new pieces are added daily.