Hello, what is the GSM value of the winter alpaca duvet please

Hello, please see below for the GSM:

Super King Size Duvet – 4.5– 7.5 TOG - SUMMER 500 – 550 OVERALL G/S/M 115 – 165 FILL WEIGHT G/S/M 2.6 – 2.9 ITEM WEIGHT IN KG
Super King Size Duvet - 7.5 – 10.5 TOG – ALL SEASONS 570 – 600 OVERALL G/S/M 190 – 220 FILL WEIGHT G/S/M 3.0 – 3.5 ITEM WEIGHT IN KG

Sup King Size Duvet – 10.5 - 13.5 TOG - WINTER 650 – 720 OVERALL G/S/M 260 – 330 FILL WEIGHT G/S/M 3.6 – 4.0 ITEM WEIGHT IN KG