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Dealers / Worcester, MA / DIAMOND CADILLAC
Cadillac dealerAuburn, MA
C

DIAMOND CADILLAC

Buyer's Guide grade C · 51 public reviews · September 2026

DIAMOND CADILLAC earns a C. 51 public reviews average 4.0 stars and 23.5 percent are one or two stars. That ranks it above 12 percent of graded dealers around Worcester.

At a glance

  • Mixed. Many buyers were happy, but a real share were not.
  • Complaint share 23.5 percent, higher than the 8.8 percent typical near Worcester
  • Reviewers mention cost most, in 4 reviews
  • Closed Sundays · Cadillac dealer

Why It Got a C

The star average is 4.0 from 51 public reviews. After the grade pulls it toward the national average, it counts as 4.09. 23.5 percent of reviews are one or two stars. To reach a B it would need an adjusted rating of 4.2 and a complaint share of 15 percent or less. How the grade works.

How the Stars Break Down

5 star33 65%
4 star6 12%
3 star0 0%
2 star3 6%
1 star9 18%

What Reviewers Talk About

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

cost 4sales staff 4customer care 4buick 3budget 2technician 2easy process 2going above and beyond 2support 2buying a car 2

Buying From DIAMOND CADILLAC

DIAMOND CADILLAC sells new Cadillac vehicles and usually takes trade ins, so its used lot is a mix of brands. A certified car from the brand program comes with a factory backed warranty. A used car that is not certified is sold on the same terms as any other used car, so read the window sticker. How certified cars work.

Luxury cars cost the most to get wrong. One deferred service item can cost more than an inspection many times over.

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

Address768 Washington St, Auburn, MA 01501
Phone508-858-5688
Websitechoosediamondcadillac.com
Listed featuresOil changes, Service department, Sells used vehicles, Credit cards, Debit cards, Phone pay, Delivery
TypeCadillac dealer

Hours

Monday9 AM to 7 PM
Tuesday9 AM to 7 PM
Wednesday9 AM to 7 PM
Thursday9 AM to 7 PM
Friday9 AM to 7 PM
Saturday9 AM to 6 PM
SundayClosed

Common Questions

Is DIAMOND CADILLAC a good dealer?
DIAMOND CADILLAC earns a C in the PPI Auto Buyer's Guide. Mixed. Many buyers were happy, but a real share were not. The grade reads 51 public reviews averaging 4.0 stars, with 23.5 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 CADILLAC inspected before I buy?
Yes. PPI Auto sends an inspector to the car on the lot in Auburn. 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 CADILLAC open on Sunday?
Its listing shows it closed on Sunday. Hours change, so call before you drive over.

Other Graded Dealers Nearby

Buyers Also Look At

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

Buying from this lot?

Inspect it on the lot

We check the car at DIAMOND CADILLAC before you sign.

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Details

No payment now · We confirm scheduling before any work

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