Sydney Grace Sunken Treasure is a warm green with a metallic finish that is discontinued and retails for $5.00. In comparison, Natasha Denona Antique Olive (14M) is a warm green with a metallic finish that is permanent in palette and retails for $29.00.
Natasha Denona Antique Olive (14M) is 85% similar — it is more shimmery, lighter, cooler.