Karisma is from the Sanskrit karṣma (कर्ष्म — action, divine power) — modernized spelling. Princess Karisma — Sanskrit-Hindu heritage naming.
Karisma 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 Karisma reduce to 9, The Giver. This is a traditional interpretive system, not a factual claim about the name.