Insights & Resources

SyncAuction Blog

Tips, guides, and industry insights for coin dealers and collectibles sellers.

PCGS and NGC coin slabs with CAC green bean and gold bean stickers
Grading

CAC Certification Explained: What It Means for Pricing and Sales

Understand CAC (Certified Acceptance Corporation) certification, the green and gold bean stickers, and how CAC approval affects coin pricing, collecto

January 22, 2026 9 min read
Coin being transferred from NGC holder to PCGS holder during crossover process
Grading

Crossover Grading: Moving Coins Between PCGS and NGC

Learn when and how to crossover coins between PCGS and NGC. Understand the risks, rewards, and economics of moving coins to different grading services

January 22, 2026 7 min read
Raw coin next to PCGS and NGC certified coins with calculator showing grading ROI
Grading

The Economics of Coin Grading: When to Grade vs Sell Raw

Learn when third-party grading makes economic sense and when selling raw is more profitable. Calculate ROI on grading submissions and make smarter inv

January 22, 2026 7 min read
Spreadsheet showing coin pricing across different grades with markup calculations
Grading

How to Price Coins by Grade: Markup Strategies from MS60 to MS70

Learn effective pricing strategies for graded coins across the Sheldon Scale. Understand grade-based markup formulas, market dynamics, and how to maxi

January 22, 2026 8 min read
Side by side comparison of PCGS TrueView and NGC PhotoVision coin photography
Grading

PCGS TrueView vs NGC PhotoVision: Image Quality Comparison

Compare PCGS TrueView and NGC PhotoVision professional coin photography services. Learn the differences, costs, and how professional images affect you

January 22, 2026 6 min read
Side by side comparison of PCGS and NGC coin slabs showing different holder designs
Grading

PCGS vs NGC: The Definitive Comparison Guide for Dealers

An in-depth comparison of PCGS and NGC grading services for coin dealers. Understand grading standards, market acceptance, pricing implications, and w

January 22, 2026 10 min read
PCGS and NGC population report data being analyzed for coin pricing decisions
Grading

Population Reports Explained: Using PCGS and NGC Data for Pricing

Learn how to use PCGS Population Reports and NGC Census data to make better pricing decisions. Understand condition rarity, interpret population data,

January 22, 2026 6 min read
PCGS and NGC details graded coins showing various problem designations
Grading

Problem Coins and Details Grades: Pricing and Selling Strategies

Learn how to price and sell coins with details grades. Understand different problem types, their market impact, and strategies for effectively selling

January 22, 2026 6 min read
Visual comparison of coins at different Sheldon Scale grades from Poor to Mint State
Grading

Understanding the Sheldon Scale: Complete Grading Guide MS1-MS70

Master the 70-point Sheldon Scale used by PCGS, NGC, and all major grading services. Learn what each grade means, how coins are evaluated, and what fa

January 22, 2026 11 min read

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