The blues and greens are so radiant, and no two will exactly match, but the colors do. This iridescent abalone button glows with pearly peacock, emerald, turquoise, many blues and greens, black and purples. Some have areas of pearly tan crinkles with green hiding beneath. Natural elegance. Backs have more tan and brown and are more textured. 29mm / 1- 1/8" diameter, almost 1-3/16". Thick and durable, best quality for your best uses. All our 'Greens/Blues Vivid Abalone' buttons match quite well n Blues And Greens, Large Buttons, The Blues, Sale House, Native American, Blue Green, Emerald, Turquoise, Purple