Should I wear jewellery?

I’m out for lunch with my friend *Jackson;* (not his real name). Jackson is ten years my senior. Neither of us are attracted to each other; we’re like family to each other. He’s a very good mate, but he sometimes gets lonely and desperate; and hits on me continuously, just because I’m a woman and I’m single. The dress code is smart casual. I’m wearing a pretty linen tiered dress. Should I wear my grandmother’s beautiful sapphire ring to lunch, or would that be likely to encourage him?

Should I wear jewellery?
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