Shaped rearview mirror assembly

A rearview mirror assembly, comprising:

• a front substrate comprising:
• a first surface, and
• a second surface;
• a rear substrate comprising:
• a third surface, and
• a fourth surface,
• wherein said rear substrate defines at least one contact via and said front substrate and said rear substrate define a cavity;
• a perimeter seal between said front substrate and said rear substrate;
• an electrically conductive element at least partially within said at least one contact via, wherein said electrically conductive element electrically connects with at least one of said second surface and said third surface;
• and
• an electro-optic medium disposed in said cavity between said front substrate and said rear substrate and bounded by said perimeter seal,
• wherein said front substrate and said rear substrate each has a shaped edge, the shaped edges characterized by a continuously arcuate shape that is formed by grinding the shaped edges together.