The Lucas Mosaic Coaster, Set of 4 from AERIN incorporates genuine lapis lazuli arranged in traditional mosaic patterns that echo centuries-old tilework techniques. Each semi-precious stone piece is carefully positioned to create intricate geometric designs, then framed with gold-toned metal edges. The four coasters nest inside a circular gold storage case that protects the stone surfaces when not in use. Natural variations in the lapis create unique tones across each surface, bringing historical artistry into modern entertainment.