For serious coin collectors, professional grading is one of the most important tools available. A certified grade from a reputable third-party grading service transforms a coin from a subjective assessment into a standardised, market-recognised asset. But with multiple grading services operating in the Singapore and Asian collector market — PCGS, NGC, GBCA, and CCG — how do you know which to choose, and what do their grades actually mean?
This guide breaks down each service, explains the Sheldon grading scale, and helps you make informed decisions about when and where to submit your coins.
The Sheldon Scale: The Universal Language of Coin Grading
All major grading services use the 70-point Sheldon scale, originally developed by Dr. William Sheldon in 1949. The scale runs from P-1 (Poor) to MS-70 (Perfect Mint State), with key grades including:
- P-1 to AG-3: Barely identifiable; heavily worn.
- G-4 to G-6: Good; major design elements visible but heavily worn.
- VG-8 to VG-10: Very Good; moderate to heavy wear, main features clear.
- F-12 to F-15: Fine; moderate wear throughout.
- VF-20 to VF-35: Very Fine; light to moderate wear on high points.
- EF-40 to EF-45: Extremely Fine; light wear on highest points only.
- AU-50 to AU-58: About Uncirculated; trace wear, most mint lustre present.
- MS-60 to MS-70: Mint State; no wear, graded by contact marks, lustre, and strike quality.
- PF-60 to PF-70: Proof; specially struck coins with mirror-like fields.
For modern commemorative coins like Singapore Lunar Series issues, collectors typically target MS-69, MS-70, PF-69, or PF-70 — the top two grades that command the strongest premiums.
PCGS — Professional Coin Grading Service
Founded: 1986, USA
Reputation: The world's largest and most recognised coin grading service.
PCGS set the standard for third-party coin grading and remains the benchmark against which all others are measured. Their grades are widely accepted by dealers and auction houses globally, and PCGS-certified coins typically command the highest premiums in international markets.
Key strengths:
- Unmatched global recognition and liquidity.
- Comprehensive population reports ("pop reports") showing how many coins exist at each grade.
- Strong secondary market; PCGS-graded coins are easily bought and sold worldwide.
- Excellent for US coins, world coins, and modern commemoratives.
Considerations: Submission fees and turnaround times vary; express services are available at premium cost. Submissions from Singapore typically go through authorised dealers or directly via their online portal.
NGC — Numismatic Guaranty Company
Founded: 1987, USA
Reputation: The world's second-largest grading service; PCGS's closest competitor.
NGC is widely respected and their grades are accepted at virtually all major auction houses and dealers. For world coins and modern issues, NGC is often considered on par with — or in some categories superior to — PCGS.
Key strengths:
- Strong world coin expertise, including Asian and Singapore issues.
- NGC Registry sets encourage competitive collecting.
- Competitive pricing on submission tiers.
- Recognised globally with strong Asian market presence.
Considerations: Some collectors perceive minor grade differences between PCGS and NGC on the same coin; this is normal and both are equally valid. For Singapore Lunar coins specifically, both services are well-regarded.
GBCA — Grading and Bullion Coin Authentication
Founded: Australia
Reputation: The leading grading service for the Asia-Pacific region.
GBCA has established itself as the premier grading service for collectors in Australia, Singapore, and Southeast Asia. Their deep expertise in Australian and Asian coin series — including Singapore Mint issues — makes them a natural choice for regional collectors.
Key strengths:
- Specialist knowledge of Singapore, Australian, and Asian coin series.
- Faster turnaround times for regional submissions compared to US-based services.
- Growing recognition and acceptance in the Asia-Pacific collector market.
- Competitive fees for regional collectors.
Considerations: Global liquidity is lower than PCGS or NGC; best suited for collectors focused on the regional market. For coins intended for international auction, PCGS or NGC may still be preferred.
CCG — Coin Certification Group
Founded: Singapore
Reputation: Singapore's home-grown grading service, specialising in local issues.
CCG is the only grading service based in Singapore, giving them unparalleled expertise in Singapore Mint coins, Straits Settlements issues, and other local numismatic material. For collectors focused exclusively on Singapore coins, CCG offers a compelling combination of local knowledge and convenience.
Key strengths:
- Deep expertise in Singapore coins and local numismatic history.
- Fastest turnaround for Singapore-based collectors.
- Strong recognition within the local Singapore collector community.
- Competitive pricing for local submissions.
Considerations: International recognition is still developing; coins graded by CCG may not command the same premiums as PCGS or NGC in overseas markets. Best suited for collectors building locally-focused collections.
Which Grading Service Should You Choose?
The right choice depends on your collecting goals:
- Maximum international liquidity: PCGS or NGC. Both are universally accepted and will maximise resale value in global markets.
- Asia-Pacific focus: GBCA offers strong regional expertise and faster turnaround at competitive cost.
- Singapore-specific collection: CCG provides the deepest local knowledge and fastest service for Singapore coins.
- Investment-grade modern coins: PCGS or NGC for the strongest price premiums, particularly for MS-70 and PF-70 examples.
Is Grading Worth the Cost?
For key-date coins, high-grade examples, and significant investments, professional grading almost always pays for itself. A raw (ungraded) Singapore Lunar coin in what appears to be MS-69 condition may sell for a modest premium; the same coin in a PCGS or NGC MS-69 slab can command significantly more, with the added benefit of authentication and tamper-evident protection.
For common-date, lower-grade, or lower-value coins, the economics may not justify grading fees. As a rule of thumb, consider grading when the expected grade premium exceeds the submission cost by a comfortable margin.
Explore Our Graded Coin Inventory
At Jade Dynasty Gallery, we stock a curated selection of PCGS, NGC, GBCA, and CCG-certified coins, including Singapore Lunar Series, Straits Settlements, and Chinese ancient coins. Browse our graded coins collection or explore our full range of Singapore coins. For specific grade or certification requests, contact us directly.