

| 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 Seed Aventurine necklace sits at the collarbone, designed to feel natural with any outfit, from day to evening. Soft, smooth green Aventurine beads bring a subtle sense of playfulness and colourful charm, punctuated by BOULO's signature organic gold accent - set with delicate touches of colour that catch the eye without demanding attention. Finished with BOULO original t-lock closure, the necklaces balances function with vibrant, playful design, allowing the piece remain fluid and easy to wear. A colourful fine jewellery essential that feels light, expressive, and quietly distinctive.
Designed in London, crafted in Istanbul.
14k yellow gold
Hand-set diamonds
0.16 ct topaz
0.16 ct peridot
Aventurine beads
19 cm in length
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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