NWOT - custom white agate earrings

NWOT - Purchased these while on vacation from a local designer in SC but never reach for it. This looks like ivory but is agate or a similar stone (I can’t recall for sure). It’s smooth and heavy, and the metal part is silver so easy to polish. There are light beige markings on the stone that give it a little more dimension. See all pics and ask any questions if interested.