Platinum & Rewards Mastercards | Loans & Credit

Diamond Platinum Mastercard - with or without Rewards

Lower rates mean lower minimum payments and less interest paid over the course of the loan. If you don’t have our card in your wallet, chances are you’re paying too much interest. Consider transferring other high rate, high balance credit cards to a Diamond Platinum Mastercard® – your choice of with or without Rewards.

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Platinum Low-Rate Mastercard features:

Low-rate APR*.
No annual fee.
No balance transfer fee.
Same rate for purchases and cash advances.
Zero-liability purchase protection.
Emergency card replacement service.
Travel accident insurance.
Make payments and view detailed account information through NetBranch Online Banking.
Enhanced online features and management tools.
24/7 Call Center support.

Apply For A Platinum Low-Rate Card

Diamond Platinum Mastercard with Rewards features:

Earn one point for every dollar spent.
New accounts receive 1,000 bonus points after first purchase.
Redeem for a wide array of merchandise from sporting equipment, to home interiors, to travel.
Rates as low as 8.9% APR*.
No annual fee.
No balance transfer fees.
Same rate for purchases and cash advances.
Zero-liability purchase protection.
Emergency card replacement service.
Travel accident insurance.
Make payments and view detailed account information through NetBranch Online Banking.
Enhanced online features and management tools.
24/7 Call Center support.

Apply For A Platinum Rewards Card Track Your Rewards Points

DiamondMC App

Enjoy easy management of your Diamond Credit Union Platinum Mastercard anywhere with the DiamondMC app. Registering your Diamond Credit Union credit card is a cinch from any mobile device, and access is secure and protected by multi-factor authentication. This app offers a convenient way to:

View recent and pending transactions.
View account details.
Make payments.
View payment history.
Report your card lost or stolen.
Dispute a transaction.
Set travel notifications.

Download the DiamondMC app from your mobile device:

Apple Pay

ApplePay Diamond Platinum Mastercards are available in Apple Pay. Apple Pay is a mobile payment and digital wallet service by Apple Inc., and is available on Apple devices. Apple Pay lets you use your iPhone 6 or newer phones and Apple Watch to pay in stores and apps in an easy, secure, and private way.

Lost or Stolen Card?

Assistance for lost or stolen cards is available 24/7.

Card Emergencies

Guide to Benefits

To request a copy of your individual Mastercard Cardholder Agreement, click the link below and open the BY EMAIL section. Select “General Questions” from the Department dropdown menu and fill in the rest of the information to email us your request. You may also request a Guide to Benefits by calling 800-593-1000 during normal business hours.

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Mastercard Disclosure

*Actual Annual Percentage Rate (APR) may vary according to overall credit history, payment method and payment processing fees.
Apple, the Apple logo, and Apple Pay are trademarks of Apple Inc., registered in the U.S. and other countries.