Diamond auto Group

Buyer's Guide grade B · 22 public reviews · September 2026

Diamond auto Group earns a B. 22 public reviews average 4.7 stars and 4.5 percent are one or two stars. That ranks it above 68 percent of graded dealers around Dallas.

At a glance

Mostly happy buyers, with a small share of complaints.
Complaint share 4.5 percent, lower than the 12.3 percent typical near Dallas
Reviewers mention buying experience most, in 4 reviews
Closed Sundays · Used car dealer

Why It Got a B

The star average is 4.7 from 22 public reviews. After the grade pulls it toward the national average, it counts as 4.48. 4.5 percent of reviews are one or two stars. To reach an A it would need an adjusted rating of 4.6 and at least 50 reviews. How the grade works.

How the Stars Break Down

5 star20 91%

4 star0 0%

3 star1 5%

2 star0 0%

1 star1 5%

What Reviewers Talk About

The subjects that come up most in public reviews of this dealer, with how many reviews mention each one.

buying experience 4car selection 3customer satisfaction 3welcoming staff 2easy to work with 2clear explanations 2communication 2employees 2management 2patient 2

Buying From Diamond auto Group

Diamond auto Group is an independent used car lot. Independent lots range from excellent to poor, and the car in front of you matters more than the sign out front. Ask whether the car is sold as is and read the Buyers Guide sticker in the window. What as is means.

Whatever the grade, the grade is about the dealer. The car is its own question. Ask the dealer if an independent inspection is allowed before you sign. A good lot says yes.

Dealer Details

Address	11344 Kline Dr, Dallas, TX 75229
Phone	903-423-1523
Website	diamondauto.us
Listed features	Oil changes, Service department, Sells used vehicles, Checks, Credit cards, Debit cards, Phone pay, Delivery
Type	Used car dealer

Hours

Monday	9.30 AM to 6.30 PM
Tuesday	9.30 AM to 6.30 PM
Wednesday	9.30 AM to 6.30 PM
Thursday	9.30 AM to 6.30 PM
Friday	9.30 AM to 6.30 PM
Saturday	9.30 AM to 6 PM
Sunday	Closed

Common Questions

Is Diamond auto Group a good dealer?

Diamond auto Group earns a B in the PPI Auto Buyer's Guide. Mostly happy buyers, with a small share of complaints. The grade reads 22 public reviews averaging 4.7 stars, with 4.5 percent at one or two stars. It rates past buyers' experience with the dealer, not any single car.

Can I get a car at Diamond auto Group inspected before I buy?

Yes. PPI Auto sends an inspector to the car on the lot in Dallas. You do not have to be there. The inspection covers 122 points, a full OBD-II scan with readiness monitors, a road test and photos of anything found, and the report comes the same day. Ask the dealer to hold the car while it is checked.

How is the grade worked out?

It needs 20 or more public reviews. The star average is pulled toward the national average by 25 average reviews so a short record cannot jump the line, and the share of one and two star reviews sets a ceiling. The full method is on our grading page.

Is Diamond auto Group open on Sunday?

Its listing shows it closed on Sunday. Hours change, so call before you drive over.

Other Graded Dealers Nearby

BLegend Autohausunder a mile BLegacy Drive Auto Groupunder a mile AAMPAK AUTOSunder a mile BAutomax Royal / Instadriveunder a mile BTop Gun Automobiles14.1 miles BNikaw Auto Sales14.6 miles

Grades update when public reviews do. Is this your dealership and something here is out of date? Tell us. See every graded dealer in Dallas, TX. Found a car here? Book a pre purchase inspection in Dallas, TX before you sign.

Buying from this lot?

Inspect it on the lot

We check the car at Diamond auto Group before you sign.

951-267-8500 Call now

Inspect a car at Diamond auto Group

Send the car details and we will call you back.

The grade covers the dealer. We check the car.

122 points, a full scan and a road test, on the lot, same day report.

Call 951-267-8500