LORAC Quartz is a warm gold with a metallic finish that is limited edition and retails for $19.00. In comparison, Natasha Denona True Gold (20M) (2019) is a warm gold with a sparkle finish that is permanent in palette and retails for $29.00.
Natasha Denona True Gold (20M) (2019) is 85% similar — it is more shimmery, darker, more muted, warmer.