Crafted from solid 18-karat gold, this chain necklace features an octagonal blue topaz pendant. From Syna Jewels' Geometrix Collection, a deep dive into the unique symmetry that forms the building blocks of the world. Lobster claw clasp 18k yellow gold and blue topaz Carat: 5 ctw Polish with soft cloth Stones sourced from India Made in Thailand Measurements Chain length: 18in Syna Jewels Women's Blue Topaz Geometrix Pendant Necklace