MAC Secrets, Secrets is a warm pink with a sparkle finish that is limited edition and retails for $20.00. In comparison, Becca Rose Quartz x Seashell is a warm pink with a sparkle finish that is limited edition and retails for $22.00.
Becca Rose Quartz x Seashell is 85% similar — it is more shimmery, darker, more pigmented, cooler.
