Opal by Mario, led by director Mario Ikasovic, has been a trusted name in Australian opal for over 40 years. Renowned for its vibrant collection of solid black, boulder, and crystal opals, the company sources directly from miners and dealers. Based in Sydney, with roots in Lightning Ridge and Coober Pedy, Opal by Mario continues to captivate wearers with expertly crafted pieces, showcased at international jewellery trade shows.