Dealer Group
Diamond Automotive Group
Diamond Automotive Group runs 5 locations in 1 state and earns a CarEdge transparency grade of B (83/100) from 25 verified out-the-door quotes.
- Average doc fee
- $85
- Dealer add-ons
- On 43% of quotes
- Top-graded store
- Diamond Hyundai Palmdale (A)
Verified quotes since 2025
Score Breakdown
Grade Distribution
Across 5 rated locations
80% of locations earned a B or better.
Key Insights
Transparency Score
Scores 83/100, 3.7 points below the national average of 86.7/100.
Add-on Frequency
43% of transactions include an add-on, 26% more often than the national average of 17%.
Listing-to-OTD Gap
Prices run 1.6% above listing on average, better than the national average of 246.1%.
Top performers in this group
Locations with D or below: 1 — Diamond Ford
All rated locations
| Dealer | Location | Grade | Score | Quotes | Brand | Doc Fee | Add-on Rate |
|---|---|---|---|---|---|---|---|
| Diamond Mazda | Lancaster, CA | A | 100 | 1 | — | $85 | 0% |
| Diamond Hyundai Palmdale | Palmdale, CA | A | 91 | 9 | — | $85 | 33% |
| Diamond Chevrolet of Banning | Banning, CA | B | 89 | 10 | — | $85 | 30% |
| Diamond Chevrolet of San Bernardino | San Bernardino, CA | B | 88 | 4 | — | $85 | 50% |
| Diamond Ford | Lancaster, CA | F | 46 | 1 | — | $85 | 100% |
Group locations
5 locations across California
Frequently Asked Questions
Is Diamond Automotive Group a good place to buy a car?
Yes, by CarEdge's measure. Diamond Automotive Group earns CarEdge transparency grade B (83/100) across 25 verified out-the-door quotes from 5 stores, graded 2 A, 2 B, 1 F. 80% of its graded stores earn an A or B. Grades vary by store, so check the specific location before you buy.
What do reviews say about Diamond Automotive Group?
CarEdge reviews Diamond Automotive Group on 25 verified out-the-door quotes, not star ratings. Diamond Automotive Group earns CarEdge transparency grade B (83/100) across 25 verified out-the-door quotes from 5 stores, graded 2 A, 2 B, 1 F. Across those quotes its stores show dealer add-ons on 43% of verified quotes.
What is the doc fee at Diamond Automotive Group dealerships?
Its stores average a $85 doc fee across 25 verified out-the-door quotes.
Do Diamond Automotive Group dealerships add dealer add-ons?
CarEdge's verified quotes from Diamond Automotive Group stores show dealer add-ons on 43% of verified quotes. Ask any store for an itemized out-the-door quote with all dealer add-ons removed before you visit.
Which Diamond Automotive Group dealership is the best?
Diamond Hyundai Palmdale in Palmdale, CA is Diamond Automotive Group's highest-graded store on the CarEdge Dealer Transparency Index: grade A (91/100) from 9 verified out-the-door quotes.