In Australia, opals that are visible within a matrix of limonite (brown iron ore) or similar host rock are called "boulder opals." The vibrant opals within the opaque host rock are very attractive, and 16.5mm beads are traded at very high prices. This time, we have obtained round beads with delicate play-of-color, displaying popular colors such as blue and green. We will offer them at a special price, so please consider them. (Number of beads) 1 (Bead size) Approximately 16.5 x 16mm *These beads were made overseas and are not perfectly round. Please understand this before purchasing. *You can enjoy the play-of-color more by shining a light, such as from a smartphone, on them. (Shipping method) We will ship via Mercari delivery with tracking. We will pack them with air cell mat and ship them promptly. If you have any questions, please leave a comment, and I will answer them, but I will reply late at night on weekdays (Monday-Friday) due to work. Thank you for your understanding. ・Natural stone ・Power stone ・Beads ・Opal #MorinoIshiyaOpal ←By stone #MorinoIshiyaBeads ←By item #MorinoIshiyaBrown ←By color #MorinoIshiya ←All products