2019 Jewel Award Winners
Class I (900+ members)
- Diamond: Chicago Area Mensa
- Sapphire: Chicago Area Mensa
- Emerald: Metropolitan Washington Mensa, Mensa In Georgia, North Texas Mensa, Gulf Coast Mensa, San Francisco Regional Mensa, Greater Los Angeles Area Mensa
Class II (400 to 899 members)
- Diamond: San Diego Mensa
- Sapphire: Central New Jersey Mensa, Central Indiana Mensa, Mid-America Mensa, Denver Mensa, San Diego Mensa
- Emerald: Connecticut/Western Massachusetts, Maryland Mensa, Western Pennsylvania Mensa, Cleveland Area Mensa, Cincinnati Area Mensa, Mensa of Wisconsin, St Louis Area Mensa, Charlotte - Blue Ridge Mensa, Mensa 76, South Texas Mensa, Central Texas Mensa, Oregon Mensa, Orange County Mensa, Broward Mensa, Tampa Bay Mensa
Class III (200 to 399 members)
- Diamond: East Central Ohio Mensa
- Sapphire: New Hampshire, East Central Ohio Mensa, Plains and Peaks Mensa
- Emerald: Southern Connecticut Mensa, Mensa of Northeastern New York, Tidewater Mensa, Kentuckiana Mensa, Central South Carolina Mensa, Piedmont Area Mensa, Middle Tennessee Mensa, Central Oklahoma Mensa, Nebraska-Western Iowa Mensa, Utah Mensa, Tucson Mensa, Mensa of Jacksonville, North Florida Mensa, Manasota Mensa
Class IV (100 to 199 members)
- Diamond: Mensa Alaska
- Ruby: Iowa-Illinois Mensa, French Broad Mensa, Mensa Alaska, Northwest Florida Mensa
- Sapphire: Blue Grass Mensa, North Alabama Mensa, Northern Nevada Mensa, Redwood Empire Mensa
- Emerald: Maine Mensa, Delaware Mensa, Rochester Area Mensa, Northeast Indiana Mensa, Heart of Illinois Mensa, Eastern Oklahoma Mensa, Central Iowa Mensa, Kansas Sunflower Mensa, Eastern Washington/Northern Idaho
Class V (fewer than 100 members)
- Diamond: High Mountain Mensa
- Ruby: Sangamon Valley Mensa, High Mountain Mensa, Tallahassee Area Mensa
- Sapphire: South Coast Mensa, Paso del Norte Mensa
- Emerald: Vermont Mensa, Northern Michigan Mensa, Montgomery/Wiregrass Mensa, Permian Basin Mensa, North Dakota Mensa, Wyoming Mountain Mensa, Columbia River Mensa