This ring, purchased for 3800 yen at sassyangel (サッシーエンジェル), is made of surgical stainless steel 316L, a material known for its rust resistance. It's safe to wear while doing water work or taking a bath. The size is US size 6 (Japanese size 11), the color is pink gold, and the ring width is approximately 2.5mm. The stones are zirconia, set all the way around the band. I've worn it about twice, and it has been stored in a dark place in a plastic bag and pouch since it arrived. Official reviews praised it as "comparable to a real diamond eternity ring," and in fact, I was often mistaken for wearing a real diamond when wearing it in public. It sparkles with a rainbow effect when exposed to light.