Tiferet is from the Hebrew Tipʾeret (תפארת — beauty, harmony, splendor). Tiferet (the goddess of beauty) — appears in modern Hebrew naming as a feminine virtue name; one of the most-distinctive modern Israeli feminine names alongside Shira, Talia, and Tiferet. Tiferet (modern Israeli children's literature) — appears widely in contemporary Hebrew children's books.
Tiferet 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.
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In Pythagorean numerology the letters of Tiferet reduce to 2, The Peacemaker. This is a traditional interpretive system, not a factual claim about the name.