hi there,
the manufacturer states >80Ra for cri.
personal experience shows that 2700k is really yellow and 6000k a touch blueish. depending on the time of day i mainly use the cold light. only at night the warm in order to not wake up.
we have three lamps and are all quite happy with them. the base includes an inductive charger for our iphones which is grand but finicky for positioning the phone. sometimes it doesn‘t charge.
on the while i would buy the lamps again for looks and performance.