Sapphire Jewellers
Midnight Onyx Signet Ring
Product Details
Warranty
Enjoy peace of mind with your purchase as we stand by the quality of our products. Our commitment to your satisfaction is reflected in a 1-year warranty, offering comprehensive coverage against any manufacturing faults.
We aim to make sure that every piece you select from our collections brings you absolute joy and satisfaction!
Purity Guarantee
What is a hallmark?
A hallmark is an authorised stamp or set of stamps imprinted on metal items to certify its quality or genuineness. This verifies the composition and indicates the purity of precious metals such as platinum, gold, silver and palladium. Every newly crafted product weighing more than 1g from Sapphire Jewellers features the British Hallmark.
Hallmarks include:
- 9ct Gold: 375
- 14ct Gold: 585
- 18ct Gold: 750
- 22ct Gold: 916
- Sterling Silver: 925
- Platinum: 950
- Palladium: PD or Pall
Ring Sizing Guide
All our rings are sized to UK standard, you can find conversions for EU and USA sizes below.
If you're unsure about your ring size, you can use a measuring tape, to measure the circumference (in mm) around your finger.
| UK Size | EU Size | US Size | Circumference (mm) |
| A | 1/2 | 37.8 | |
| B | 1 | 39.1 | |
| C | 40 1/2 | 1 1/2 | 40.4 |
| D | 41 1/2 | 2 | 41.7 |
| E | 42 3/4 | 2 1/2 | 42.9 |
| F | 44 | 3 | 44.2 |
| G | 45 1/4 | 3 1/2 | 45.5 |
| H | 46 1/2 | 4 | 46.8 |
| I | 47 3/4 | 4 1/2 | 48.0 |
| J | 49 1/2 | 4 3/4 | 48.7 |
| K | 50 1/4 | 5 1/4 | 50.0 |
| L | 51 1/2 | 5 3/4 | 51.2 |
| M | 52 1/2 | 6 1/4 | 52.5 |
| N | 54 | 6 3/4 | 53.8 |
| O | 55 1/4 | 7 | 55.1 |
| P | 56 1/4 | 7 1/2 | 56.3 |
| Q | 57 1/2 | 8 | 57.6 |
| R | 58 1/2 | 8 1/2 | 58.9 |
| S | 60 1/4 | 9 | 60.2 |
| T | 61 1/2 | 9 3/4 | 61.4 |
| U | 62 1/2 | 10 1/4 | 62.7 |
| V | 63 3/4 | 10 3/4 | 64.0 |
| W | 65 1/4 | 11 1/4 | 65.3 |
| X | 66 1/4 | 11 3/4 | 66.6 |
| Y | 67 1/2 | 12 | 67.8 |
| Z | 68 3/4 | 12 1/2 | 68.5 |
Product information
At Sapphire Jewellers, we provide high-quality, authentic gold and silver jewellery. We reject the notion of selling plated base metals, ensuring that every piece in our collection is crafted with genuine materials.
With every purchase, you will receive an authenticity card and guarantee.
We offer free shipping on orders over £150.
To ensure the lasting brilliance of your gold and silver jewellery, avoid contact with harsh chemicals including perfumes and regularly clean with mild soapy water. For an extra shine you can purchase gold or silver dip from our store. For more details on after-care, please get in touch!
WHY WE CHOOSE SOLID GOLD
Choosing solid gold over gold-plated jewellery ensures enhanced durability, making it more resilient to everyday wear and tear, resulting in long-lasting impeccable condition.
With intrinsic value derived from its gold content, solid gold offers a lasting and tangible investment. It's also perfect for sensitive skin.
Solid gold is ideal for those valuing genuine quality, combining long-term value, authenticity, and enduring beauty.