
The Lumière Collection
Light, refined.
Modern diamond essentials with clean lines, considered proportions and an effortless kind of brilliance.
Discover LumièreSolid gold pieces, handcrafted in Greece for everyday and for the moments that matter.
Shop by story

The Lumière Collection
Modern diamond essentials with clean lines, considered proportions and an effortless kind of brilliance.
Discover LumièrePersonal, by design
We transform fingerprints, handwriting and meaningful details into pieces created to stay close.
Create something personal
Gem & Tonic Jewels
Solid gold jewelry, refined by hand and created with a modern point of view—from everyday diamonds to one-of-a-kind keepsakes.
Terms & Conditions
This website is operated by:
Gem & Tonic Jewels
143 Chrysostomou Smyrnis Ave
162 31 Athens
GREECE
Registration Number: 188939802000
Phone: +30 211 008 5010
Email: info@gemntonic.com
By accessing or purchasing from this website, you agree to the following terms and conditions.
1. Products & Craftsmanship
All Gem & Tonic Jewels jewelry is crafted in solid gold and set with lab-grown diamonds. Due to the handcrafted nature of fine jewelry, slight variations may occur.
2. Pricing & Payments
Prices are listed in EUR (€) unless otherwise stated. Payments are processed securely through Shopify-approved payment providers.
3. Orders & Acceptance
We reserve the right to refuse or cancel any order due to availability, errors, or suspected fraudulent activity.
4. Shipping
Estimated delivery times are provided at checkout. Gem & Tonic Jewels is not responsible for delays caused by shipping carriers or customs authorities.
5. Returns & Exchanges
Please refer to our Returns & Exchanges Policy for detailed information.
6. Intellectual Property
All content, designs, images, and text on this website are the intellectual property of Gem & Tonic Jewels and may not be reproduced without written permission.
7. Governing Law
These terms are governed by the laws of Greece and applicable European Union regulations.