# Ruben Sierra #390

The Ruben Sierra (#390, Topps, 1990) is a standard Baseball card. Across 1 ZeroPop community scans it averages a 7.0/10 grade (NM), with 0% grading Gem Mint 9.5 or higher. Its current raw market value is about $1.

Canonical URL: https://zeropop.app/card/ruben-sierra-topps-390

## Card details

- Set: Topps
- Number: #390
- Year: 1990
- Game: Baseball
- Rarity: Standard

## Market price

- Current raw value: $1
- Source: ebay+gemini
- 6-day change: -22.7%

## Community grade population

- Scans: 1
- Average overall grade: 7.0 / 10
- Average corners: 7.0
- Average edges: 7.0
- Average surface: 9.5
- Average centering: 9.0
- Gem Mint (9.5+) rate: 0%
- Highest community grade: 7.0

### Value by grade

| Grade | % of scans | Avg value |
|-------|------------|-----------|
| 7 | 100% | $2 |

### Most common condition issues

- Whitening: 100% of scans
- Tl B/Tr B/Bl B/Br B: 100% of scans
- T B/B B/L B/R B: 100% of scans

## Frequently asked questions

### What is a Ruben Sierra worth?

A raw (ungraded) Ruben Sierra from Topps currently carries a market value of about $1. Graded copies sell for more. The value ladder on this page shows the estimated price at each grade.

### What grade do most Ruben Sierra cards get?

Across 1 community scans on ZeroPop, the Ruben Sierra averages a 7.0/10 overall grade. 0% reach Gem Mint (9.5+). Sub-grade averages: corners 7.0, edges 7.0, surface 9.5, centering 9.0.

### What are the most common defects on a Ruben Sierra?

The most frequently flagged condition issues on scanned Ruben Sierra cards are Whitening (100% of scans), Tl B/Tr B/Bl B/Br B (100% of scans), T B/B B/L B/R B (100% of scans).

### Is the Ruben Sierra worth grading?

Whether the Ruben Sierra is worth submitting depends on its raw value versus its graded value and your predicted grade. ZeroPop scans the card, predicts a PSA/BGS/CGC grade, and runs the break-even math before you pay submission fees.

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Source: ZeroPop community grade data. ZeroPop is an AI-powered trading card grading app at https://zeropop.app