How many g is 500 ct?
500 ct = 100 g
It is 100 g, so saying 100 g is fine — rounding is within 0.5%.
And how many ct is 500 g?
500 g = 2,500 ct
Formula: g = ct × 0.2
ct to g around this value
50 ct10g
100 ct20g
150 ct30g
200 ct40g
250 ct50g
300 ct60g
350 ct70g
400 ct80g
450 ct90g
500 ct100g
550 ct110g
600 ct120g
650 ct130g
700 ct140g
750 ct150g
800 ct160g
850 ct170g
900 ct180g
950 ct190g
1,000 ct200g