Overview
Estimates PSA grades on cards and PCGS/NGC grades on coins using AI vision. Identify valuable ungraded collectibles.
Grade Estimator - AI-Powered Collectible Grading Assistant Grade Estimator uses AI vision to estimate PSA grades for collectible cards and PCGS/NGC grades for coins. Identify valuable ungraded items on eBay, TCGPlayer, and CardMarket. Key Features: - Dual Grading Modes: Switch between card grading (PSA 1-10) and coin grading (MS-70 to PO-1) - AI-Powered Analysis: Uses advanced vision AI to assess condition factors including: - Cards: Centering, corners, edges, and surface quality - Coins: Strike, surface preservation, luster, wear, and marks - Smart Detection: Automatically identifies already-graded items and skips multiple-item listings - Price Estimates: See estimated market value at the highest grade (PSA 10 for cards, MS-70 for coins) - Grading Cost Calculator: View estimated grading costs from PSA and PCGS/NGC based on item value - Batch Scanning: Process listings in batches of 10 with automatic sorting by grade and confidence - Grade Caching: Grades are saved so you don't need to re-scan the same items - Customizable Settings: Adjust badge position, opacity, tooltip delay, and more - Keyboard Shortcut: Quick scan with Ctrl+Shift+S (Cmd+Shift+S on Mac) Perfect For: - Collectors looking for undervalued raw cards and coins - Dealers identifying grading opportunities - Anyone buying collectibles online who wants condition insights How It Works: - Enter your OpenAI API key in the extension settings - Visit eBay, TCGPlayer, or CardMarket search results - Click the scan button or use the keyboard shortcut - View grade estimates with confidence levels and detailed condition analysis - Sort listings by highest grades to find the best opportunities Privacy & Transparency: - Your API key is stored securely in Chrome's sync storage - All analysis happens through OpenAI's API - We use affiliate links to keep the extension free (disclosed in settings) - Full privacy policy available in extension settings - Start finding hidden gems in collectible listings today. Note: Requires an OpenAI API key. The extension uses your API credits for analysis. Usage statistics are tracked so you can monitor costs.
Details
- Version4.0.0
- UpdatedNovember 19, 2025
- Offered byGemnet.AI
- Size106KiB
- LanguagesEnglish
- Developer
Email
ehlermannreece@gmail.com - Non-traderThis developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.
Privacy
GemnetV4 has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
GemnetV4 handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
