The Ethiopian Opal Drop Necklace from Original Hardware features an opal nugget on a sterling silver box chain.  Natural shimmery opal is featured in this limited edition collection.
 
Genuine Ethiopian opal drop
Sterling silver box chain with spring ring clasp
18 inches long
Limited edition
 
*Opal is a delicate stone and requires special care. Use only a very soft microfiber cloth to clean the stone. Avoid harsh chemicals and water, and protect the stone against sharp blows. Store the stone separately from other stones and metals.