1 pcs Orange, Yellow Opal - 4.90 ct - International Gemological Institute (IGI) - Play of Color

Opals are unique gemstones known for their captivating play of color, an optical phenomenon where flashes of multiple colors appear as the stone moves. Orange and yellow opals are particularly intriguing varieties, offering warm, fiery tones that can range from bright citrus hues to deep amber shades. Unlike precious opals famed for their iridescence, these may also display vibrant play-of-color, adding to their visual interest. Opals form from silica deposited in cracks and cavities in sedimentary rocks, often in regions like Australia and Ethiopia. The structure of opal, being amorphous and containing microscopic spheres of silica, is responsible for its distinctive color effects. Certified by institutions such as the International Gemological Institute (IGI), opals are evaluated for color, clarity, and color play intensity. Their delicate nature requires careful wear, yet their dazzling colors make them treasured additions to a gemstone collection or artistic jewelry pieces.