1oz Platinum Royal Mint Britannia King Charles lll (2026)
Manufacturer: The Royal Mint
Weight (grams): 31.10
Pure platinum content (grams): 31.10
Fineness: 999.5
Diameter: 32.69 mm
Face Value: £100 (GBP)
Dimensions: 1oz platinum coin – supplied in protective capsule or original packaging
Discover the 1oz Platinum Royal Mint Britannia King Charles III Coin (2026), struck in 999.5 fine platinum by The Royal Mint, one of the world’s most prestigious and historic mints. This latest release features the official effigy of King Charles III on the obverse, marking a new era in British coinage, while the reverse showcases Philip Nathan’s iconic Britannia design, symbolising strength, resilience, and national identity.
Containing one troy ounce of pure platinum, this coin offers strong intrinsic value alongside advanced minting technology. It incorporates innovative security features, including micro-text, surface animation, and a latent image, enhancing both authenticity and protection.
Recognised as legal tender in the United Kingdom with a face value of £100, this coin delivers both investment-grade quality and strong collector appeal. As a 2026 pre-release issue, it is an excellent choice for investors and collectors seeking a modern and highly secure addition to their platinum portfolio.
Please note: Due to strong demand, dispatch for this product is estimated at approximately 2 weeks.
Available with fully insured UK delivery or secure collection from London Gold Emporium, Hatton Garden.
Available on backorder
Available on backorder
Delivery & Returns
Fast, insured delivery. Easy, transparent returns.
- Standard (1–3 working days) via Royal Mail Tracked / Special Delivery.
- Express (Next Working Day) order by 1pm Mon–Fri.
- Saturday Delivery available at checkout (postcode dependent).
We ship fully insured until signed for. Dispatch times exclude bank holidays.
- EU & Worldwide via FedEx/DHL Express, 2–7 working days (destination dependent).
- Customs/Duties are the buyer’s responsibility and vary by country.
- Photo ID may be required for high-value shipments.
We provide tracking links on dispatch. Delivery estimates exclude customs clearance time.
- Processing time: 1–2 working days for in-stock items; bespoke/resize adds 3–7 days.
- Discreet, secure packaging with tamper seals.
- Gift note available at checkout.
- Tracking is emailed automatically once dispatched.
- If your parcel is delayed, contact us so we can investigate with the carrier.
Office hours: Mon–Fri, 10:00–17:00 (UK time)
- 14-day returns from delivery for online purchases.
- Items must be unused, in original condition with tags, certificates, and packaging.
- Please request a return authorisation before sending anything back.
Unauthorised or late returns may be refused or incur a restocking fee.
- Pierced earrings (unless faulty).
- Engraved, altered, resized, or bespoke/custom-made items.
- Items showing signs of wear or damage.
- Email sales@londongoldemporium.co.uk within 14 days.
- We’ll send you an RMA and instructions (including return address).
- Return using insured, tracked, signature service. Keep proof of postage.
- Once inspected, refunds are issued to the original payment method within 5–10 working days.
- Exchanges are subject to stock availability.
- Faulty/incorrect items: we’ll cover reasonable return postage once verified.
This policy does not affect your statutory rights under UK consumer law.
UK Ring Size Guide (A–Z+)
Measure your ring or finger, then match to UK letters.
Tip: Measure an existing ring’s inside diameter with a ruler/caliper. Or wrap a thin strip around your finger, mark it, and measure the length for circumference.
UK to mm (reference)
| UK | Diameter (mm) | Circumf. (mm) | US | EU (ISO circ.) |
|---|
Values are typical references. Manufacturers may vary ±0.1–0.2 mm.
Popular UK sizes
Common women’s sizes: J–P. Men’s: P–T (varies by style and fit).
Fit notes
- Warm hands measure slightly larger; measure at the end of the day.
- Wider bands feel tighter—consider half size up for bands ≥6 mm.
- Knuckle vs. base: choose a size that passes the knuckle but fits snug at the base.
For eternity/comfort-fit bands, professional sizing is recommended.
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