Jewel is from the Old French jouel — "plaything, ornament, precious gem." A top-500 US baby name from 1880 to 1985, with a 1990s revival. Grew up in Homer, Alaska, in a cabin without running water; her 2015 memoir Never Broken was a bestseller. The Inspiring Children Foundation co-founder; longtime mental-health and homelessness advocate (she was homeless herself in 1994 while writing her debut). Lawrence Welk's TV show featured a regular Jewel.
Jewel does not currently appear in the US Social Security Administration's top 1,000 girls' names, so we don't publish a US rank or birth count for it. That says nothing about the name's standing elsewhere in the world — only that it sits outside the ranked US data we rely on.
In Pythagorean numerology the letters of Jewel reduce to 1, The Leader. This is a traditional interpretive system, not a factual claim about the name.