Diadem Lake is a Lake located in New Westminster Land District, British Columbia and has an elevation of 1032 meters.

• Latitude: 50° 00' North   (decimal: 49.9999999)
• Longitude: 124° 3' West   (decimal: -124.0499999)
• Topography Feature Category: Lake
• Geographical Feature: Lake
• Canadian Province/Territory: British Columbia
• Elevation: 1032 meters
• Location: New Westminster Land District
• Atlas of Canada Locator Map: Diadem Lake
• GPS Coordinate Locator Map: Diadem Lake Lat/Long