coin authenticationPCGS authenticationNGC authenticationprofessional grading
When to Use a Professional Authentication Service
D
Dwight Ringdahl
March 9, 2026
When Professional Authentication Makes Sense
- High-value purchases — Any raw coin worth over $200–$500.
- Key dates and rarities — The most counterfeited coins should only be purchased certified.
- Uncertain findings — When your home tests raise questions.
- Insurance/estate — Documented proof of authenticity.
- Before selling — Maximizes resale value and buyer confidence.
Authentication Services
- PCGS — Authenticates every coin as part of grading. Coins that fail return in a "Not Genuine" body bag.
- NGC — Same process. Also offers authentication-only service.
- ANACS — Oldest US authentication service (1972). Lower cost, will grade problem coins.
- CAC — Reviews already-certified coins for quality, not raw coins.
Costs
- Economy — $22–$30/coin, 30–45 days (PCGS/NGC). Includes authentication + grading.
- ANACS — $15–$25/coin. Faster turnaround.
- At coin shows — Walkthrough service: 1–2 days, $100–$300+.
What Happens When a Coin Is Fake
The coin returns in a "body bag" labeled "Not Genuine" with the reason (Cast Copy, Altered Date, etc.). You are not charged the grading fee — only handling/return shipping. The coin is not confiscated; it's returned to you.
Series Conclusion
Over 8 articles, you've learned to protect yourself from counterfeits — from physical testing to visual examination to professional authentication. The key takeaways:
- For coins over $100–$200, buy certified or have them authenticated.
- Build a basic toolkit: loupe, scale, calipers, magnet.
- Learn the specific diagnostics for coins you collect.
- Buy from reputable dealers at established coin shows.
Explore our other series on the Learn page.
This article is for educational guidance. Where official grading rules, dealer memberships, legal requirements, or tax obligations apply, consult the relevant primary authority.
Last reviewed February 18, 2026 by the US Coin Shows editorial team. Editorial policy
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