

| UK Size | Inside diameter (mm) | Inside circumference (mm) | UK Size | Inside diameter (mm) | Inside circumference (mm) |
|---|---|---|---|---|---|
| C | 12.85 | 40.4 | M | 16.71 | 52.5 |
| D | 13.26 | 41.7 | N | 17.12 | 53.8 |
| E | 13.67 | 42.9 | O | 17.53 | 55.1 |
| F | 14.07 | 44.2 | P | 17.93 | 56.3 |
| G | 14.48 | 45.5 | Q | 18.34 | 57.6 |
| H | 14.88 | 46.8 | R | 18.75 | 58.9 |
| I | 15.29 | 48.0 | S | 19.15 | 60.2 |
| J | 15.49 | 48.7 | T | 19.56 | 61.4 |
| K | 15.90 | 50.0 | U | 19.96 | 62.7 |
| L | 16.31 | 51.2 | V | 20.37 | 64.0 |
The Orbit Halo ring explores light through form, featuring a hollow design delicately framed with Citrine. The result is a soft, luminous glow that feels refined rather than overt. Balanced and elegant, it offers subtle sparkle suited to everyday wear while remaining visually distinctive. This piece perfectly reflects BOULO’s approach to modern fine jewellery - where colour, design, and restraint come together in harmony, creating a ring that feels unique, considered, and quietly expressive.
Designed in London, crafted in Istanbul.
14k yellow gold
Hand-set gemstones
0.34 ct Citrine
Sold individually
Care Guide
Suitable for everyday wear
External factors may naturally reduce the lustre of gold and gemstones. Please handle with care.
To preserve their finish, clean gently using non-abrasive products designed for fine jewellery.
Shipping and Personalisation
In-stock pieces are dispatched within 1–3 business days. Please refer to our Shipping Policy for detailed delivery timelines.
Please allow 6-8 weeks for made-to-order pieces.
For personalisation enquiries, including engraving or stone amendments, please contact us by email. Delivery timelines will be confirmed based on the nature of the personalisation.
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