Ethiopian Opal .925 Silver Ring Size 7

Among the books, decks, and stones on 14th Street is this ring: Ethiopian Opal .925 Silver Ring Size 7 (shop SKU IGETOPR59).

Ethiopian opal is a hydrated silica known for play-of-color, and material from Ethiopia is often hydrophane, meaning it can absorb water and temporarily change in appearance. Keep it out of prolonged soaking and sudden temperature changes. In crystal traditions, opal is associated with inspiration. Those ideas belong to folklore and personal practice, not to any medical claim.

Sterling silver is 92.5% silver, often stamped .925; like all silver, it can tarnish over time and can be brightened with a soft polishing cloth. The ring size is 7, as stated in the title. Store jewelry dry and away from lotions, perfume, and harsh cleaners to keep it looking its best.

• SKU: IGETOPR59

You can see this one in person at Namaste Bookshop, 2 West 14th Street near Union Square in New York City, or order it online.