Platinum 3oz Coins

Explore our range of 3oz platinum coins, featuring some of the most exclusive and high-end platinum issues available from the Royal Mint and select world mints. Struck in fine 999.5 platinum, these substantial coins are among the largest modern platinum collector pieces, combining exceptional rarity with strong numismatic appeal.

This category includes a selection of British and world platinum 3oz coins, including prestigious Royal Mint issues such as Piedfort proof commemoratives, special anniversary releases, and limited-mintage collector coins, often produced to celebrate royal milestones and historic events.

Many coins in this range are available in proof and PCGS graded formats, with certified examples offering independently verified condition, authenticity, and premium collector value. Due to their extremely low mintages and large precious metal content, 3oz platinum coins are considered elite-tier numismatic pieces.

As one of the largest platinum coin formats ever issued, 3oz coins are highly sought after by advanced collectors and investors seeking rarity, prestige, and significant platinum content in a single piece.

Browse our selection of 3oz platinum coins with secure worldwide shipping from a trusted UK coin dealer.