ΔE 18.6, loose: different enough that you should pick on purpose. New Gold is a little lighter, much more muted than Glittering Loot.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 19). New Gold is a little lighter, much more muted than Glittering Loot.
The same difference applies the other way round: Glittering Loot is a little darker, much more saturated.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Glittering Loot on the colour wheel See New Gold on the colour wheel
All matches: Glittering Loot equivalents · New Gold equivalents