Abalone shell pendant, silver setting, wire work, vintage, artisan handmade

Beautiful, pinks, browns, blues, greens abalone shell, large doughnut pendant necklace set in silver, different colours show as the pendant moves but not showing as well in photos. Vintage, hand made, hand crafted, artisan made, great condition. Silver edge to protect the shell with wire work decoration. Silver is lower than 925 silver as it is not hallmarked. Size 2 inches, ~18 inch black, coated cotton cord, adjustable. First 3 photos show the colours best.