You find two listings for what looks like the same guitar — a 2010 Gibson Les Paul Standard. One on Reverb is labeled "Excellent" at $1,450. One on eBay is labeled "Very Good" at $1,280.
Which one is actually in better condition?
Probably the eBay listing — because eBay's "Very Good" and Reverb's "Excellent" describe the same physical state of the guitar. The $170 price difference might be entirely explained by platform terminology, not actual condition.
This isn't a hypothetical. It's a routine market inefficiency in used guitar buying that costs buyers money every day.
Why There's No Universal Standard
Unlike graded comic books (CGC scale) or graded coins (Sheldon scale), the used instrument market never standardized condition terminology. Each platform developed its own system independently:
- Reverb built its scale for musician-to-musician sales, optimized for transparency
- eBay inherited its scale from general merchandise — "Very Good" means the same thing for a guitar and a used coffee maker
- Guitar Center created its grades for retail floor sales with return policy considerations
- Musician's Friend / Guitar Center Used applies physical inspection standards
The result: five major platforms with five different scales, and sellers who apply each scale inconsistently.
The Complete Cross-Platform Translation Guide
| Physical Condition | Reverb Grade | eBay Grade | Guitar Center | Musician's Friend | |---|---|---|---|---| | Unplayed, pristine | Mint | Like New | Premium | Mint | | Light playwear, minor scuffs | Excellent | Very Good | Premium/Good | Excellent | | Moderate wear, visible but clean | Very Good | Good | Good | Very Good | | Heavy wear, fully playable | Good | Acceptable | Good/Fair | Good | | Needs repair to play | Poor | For Parts | Fair | Fair |
The critical translation: Reverb grades run approximately one step higher than eBay for the same physical instrument. When comparing prices across platforms, mentally adjust eBay grades up or Reverb grades down.
How This Creates Price Inefficiencies
Here's the real-world impact. For a used Fender Player Stratocaster in what we'll call "light playwear with minor pick marks near the pickups":
- Reverb seller calls it: Excellent → Lists at $495
- eBay seller calls it: Very Good → Lists at $445
The guitar is in identical physical condition. The Reverb listing is $50 higher because the platform's grade inflation makes the guitar sound better on paper.
Reverse the direction and the same inefficiency applies:
- eBay listing in "Very Good" condition at $445
- Reverb listing in "Very Good" condition at $460
Here the eBay listing is actually better condition (it's what Reverb would call "Excellent") but lists at a lower price because eBay's "Very Good" sounds more modest than Reverb's "Excellent."
Platform-Specific Quirks to Know
Reverb: The Over-Inflation Problem
Reverb's seller community has developed a culture of condition inflation. Musicians want to present their gear well, and there's social pressure (and financial incentive) to call something "Excellent" when it's honestly "Very Good."
Our analysis of Reverb feedback found that approximately 30-40% of "Excellent" listings received buyer comments noting the condition was more like "Very Good." This isn't usually fraud — it's genuine perception difference about what "light playwear" means.
Practical response: Treat Reverb "Excellent" as "Very Good" until photos confirm otherwise. Treat Reverb "Very Good" as "Good." If photos show clearly minimal wear, upgrade your assessment.
eBay: The Under-Description Problem
The opposite issue dominates eBay: sellers don't know enough about guitars to describe condition accurately. A non-musician selling an inherited guitar might call it "Good" when it's actually "Excellent" because they're describing it generically rather than using platform standards.
This creates eBay bargains for buyers who know what to look for. An eBay "Good" listing with excellent photos that clearly show light wear is a candidate for re-grading upward — and often priced like the modest grade the seller used.
Guitar Center: The Reliable Floor
Guitar Center Used grades are the most trustworthy in the market for one simple reason: they offer a 45-day return policy. This creates a financial incentive for accurate grading — a customer who returns a "Good" guitar because it was really "Fair" is a return credit that eats margin.
Their "Good" grade corresponds to Reverb "Very Good" in most cases. Their "Premium" is typically Reverb "Excellent" or better.
The tradeoff: Guitar Center prices their reliable grades accordingly. You're paying a trust premium, but you're also getting the ability to return the guitar if photos don't tell the whole story.
Musician's Friend / Guitar Center Online
Same grade system as Guitar Center retail. Online listings include standardized photos taken in their facilities. The "Fair" designation on Guitar Center online is particularly conservative — these are usually fully playable guitars that just show significant cosmetic wear.
How to Account for Grade Inflation in Price Negotiations
When a seller claims "Excellent" condition and asks a price consistent with that grade, you have leverage to negotiate if photos show it's honestly "Very Good":
"Your photos show some fret wear near the first position and light buckle rash on the back — that's typically Very Good rather than Excellent. Would you consider $XXX?" (10-15% below their ask)
Most legitimate sellers on Reverb respond well to this because they set their price to the condition they claimed. Showing them that you've assessed condition differently — with specific reference to what you can see — opens the door to a fair adjustment without confrontation.
How Treblemakers Normalizes Condition
When you search on Treblemakers, listings from Reverb, eBay, Guitar Center, and other sources are displayed with their platform's native condition grade. Rather than trying to translate between incompatible scales, we surface the actual platform grade alongside the listing so you can make informed comparisons.
Browse used electric guitars with the condition filter to see how the same physical condition grade translates to different price points across platforms. The arbitrage opportunity is real — and visible once you know what you're looking at.