Not sure which size to choose? Choosing the right size is easy. Use the guide below, or contact our team for personalised advice before ordering. We’re happy to help you find the perfect fit.
| UK Size | Approx. US Size | Inside Diameter |
|---|---|---|
| J | 4¾ | 15.5mm |
| L | 5¾ | 16.3mm |
| N | 6¾ | 17.1mm |
| P | 7¾ | 17.9mm |
| R | 8¾ | 18.8mm |
Between sizes? We generally recommend choosing the larger size for the most comfortable fit.
Still unsure? Contact us before placing your order and we’ll happily recommend the best size based on a ring you already own.
THE SMARTER DIAMOND ALTERNATIVE
Same size. Same sparkle. More brilliance and fire.
Traditional Diamond Ring
£3,000+
Traditional diamond pricing
Serenity D Color 3-5ct Waterdrop Moissanite Necklace
£174.99
Luxury appearance without the luxury markup
Modern Luxury Without Compromise
At ShelbyCo, we believe fine jewellery should feel timeless, ethical, and attainable.
Our moissanite pieces are crafted for people who value brilliance, craftsmanship, and individuality — without paying traditional diamond markups.
Learn why more and more people are choosing Moissanite over traditional stones here:
Hand-finished luxury materials designed for everyday brilliance.
Conflict-free moissanite created with a lower environmental impact.
Each stone is selected for exceptional fire, clarity and brilliance.
