Splittings of 3-- and 1-- 1D states:

states
mass difference
(MeV)
ρ(1690)
ρ(1450)
≅ 240
Υ(10204)
Υ(10129)
≅ 75



Follows reasonably well the 1/√(flavor mass) rule
for flavor independence:

1/√(mu,d) : 1/√(mb) = 3.4 : 1

flavor masses are from Phys. Rev. D27, 1527 (1983)
The ρ(1450) is classified ρ(2S) in PDG Tables!