Huda Beauty Theia is a warm duochrome with a sparkle finish that is limited edition and retails for $39.00. In comparison, MAC Stylishly Merry #2 is a warm gold with a glitter finish that is limited edition and retails for $20.00.
MAC Stylishly Merry #2 is 90% similar — it is more shimmery, darker, more pigmented, warmer.