Certified & Graded Bullion Coins

Certified & Graded Bullion Coins (Gold, Silver & Platinum)

Explore our range of Certified & Graded Bullion Coins from The London Coin Company — a premium investment and collector category featuring bullion coins in gold, silver, and platinum that have been independently authenticated, graded, and encapsulated by leading third-party grading services such as PCGS (Professional Coin Grading Service) and NGC (Numismatic Guaranty Company).

This category brings together some of the world’s most recognised investment bullion issues — including Britannias, Sovereigns, Maple Leafs, American Eagles, Krugerrands, Pandas, and Kangaroos — all professionally certified and sealed in tamper-proof slabs to guarantee authenticity, condition, and long-term collectability.

A certified bullion coin is a standard investment coin that has been submitted for professional grading, where it is assessed for strike quality, surface preservation, and overall condition before being assigned a numerical grade on the internationally recognised Sheldon scale (1–70). Once graded, the coin is permanently encapsulated, providing a verified and traceable record of its quality.

PCGS and NGC are the two most widely recognised grading authorities in the world, and their certification is commonly used across the global precious metals and numismatic markets.

Certified bullion coins are particularly popular because they combine intrinsic metal value with verified condition and authenticity, making them easier to trade, compare, and store as long-term investment assets.

This category includes a wide range of Certified & Graded Bullion Coins, including:

Gold Certified Bullion Coins

• PCGS & NGC graded gold Britannias
• Certified gold Sovereigns (all eras and denominations)
• Graded American Gold Eagles & Buffalos
• Certified Canadian Maple Leaf gold coins
• Graded South African Krugerrands
• Certified Chinese Panda gold coins
• Graded Australian Kangaroo gold coins
• Fractional certified gold bullion issues

Silver Certified Bullion Coins

• Graded Silver Britannias (UK)
• Certified American Silver Eagles
• Graded Canadian Silver Maple Leafs
• Certified South African Silver Krugerrands
• Graded Chinese Silver Panda coins
• Certified Perth Mint silver bullion (Kangaroo, Kookaburra, Lunar)
• Fractional and special edition graded silver coins

Platinum Certified Bullion Coins

• Graded Platinum Britannias
• Certified American Platinum Eagles
• Graded Canadian Platinum Maple Leafs
• Certified Perth Mint platinum bullion issues
• Rare and limited platinum bullion coins in PCGS/NGC slabs

Mixed & Investment Certified Coins

• Multi-metal graded bullion collections (gold, silver & platinum)
• Certified fractional investment sets
• Mixed-date slabbed bullion coins
• Registry-quality high-grade examples (MS 69–70)
• Investment-grade certified world bullion sets

Certified bullion coins are widely sought after because they remove uncertainty around condition and authenticity, two key factors in secondary bullion trading. While the underlying value is still driven by precious metal spot prices, graded coins can carry additional premium due to their certified condition, scarcity in high grades, and collector demand.

They are especially popular in modern bullion markets where coins are frequently traded internationally, as the slabbed certification from PCGS or NGC provides instant verification and standardised grading recognised across dealers worldwide.

Browse our full range of Certified & Graded Bullion Coins below, including gold, silver, and platinum investment coins from the world’s leading mints, all professionally graded, encapsulated, and authenticated for complete collector and investor confidence.