18mm Stainless Steel Mexican Opal Cuff Links Dragons Breath Cufflinks Red Blue Color Changing Mexican Fire Opal Dragon's Breath glass cabachon - Colors shift from lightening strikes of blues to scarlet red depending on how the light hits it The flashes of color from within the stone are known as the "breath" from which the name is derived. Mexican Opals were first used in jewelry in the early 1900s to simulate fire/jelly opals. Highly collectible and rare  this lovely stone is a certain conversation piece and will become a cherished favorite. Cuff Links are Stainless Steel - Stainless steel very durable, hypo allergenic, will not rust, change color or tarnish. Elegant and affordable - makes a great gift for weddings, graduations, birthdays, Father's Day, Boss's Day, etc. Comes in a jewelry gift box, ready for gift giving! Handcrafted in the USA by Little Gem Girl - a small handmade business!