For more on the Byzantine-era winery at Yavneh (Yavne), see here. The ring is from a seventh-century stratum, but it may be several centuries older than that.
Rossella Tercatin is the only one I have found who has noticed that this is the second ancient amethyst gemstone, possibly also from a ring, to be discovered recently. More on that here.
For more posts on ancient bling, follow the links at the last link above.
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