Rings
Choosing the perfect ring starts with the perfect fit. Use our ring size chart to match the internal diameter of a ring you already own, or download our printable guide for easy at-home measuring. If you need assistance, our team is here to help ensure your jewelry fits flawlessly
| Internal Diameter (mm) | Ring Size (US) |
| 14 | 3 |
| 14.4 | 3.5 |
| 14.8 | 4 |
| 15.2 | 4.5 |
| 15.6 | 5 |
| 16 | 5.5 |
| 16.5 | 6 |
| 16.9 | 6.5 |
| 17.3 | 7 |
| Internal Diameter (mm) | Ring Size (US) |
| 17.7 | 7.5 |
| 18.2 | 8 |
| 18.6 | 8.5 |
| 19 | 9 |
| 19.4 | 9.5 |
| 19.8 | 10 |
| 20.2 | 10.5 |
| 20.6 | 11 |
| 21 | 11.5 |
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Our Promise
G – Genuine Beauty
We promise authentic, ethically sourced gemstones, personally selected for their natural brilliance and spirit.
P – Precision Craftsmanship
Every stone is cut, polished, and set with absolute care and artistry, ensuring the finest quality and timeless beauty.
S – Signature Stories
We create jewelry that is more than an accessory — it is a story, a memory, a legacy you can pass down through generations.
Authenticity
Every gemstone is fully certified and ethically sourced.
Expertise
Over 25 years of industry mastery at your service.
Exclusivity
Unique, one-of-a-kind pieces tailored for extraordinary individuals.
Integrity
Honest guidance through every step of your journey.
Beyond Jewelry
Welcome to GPS GEMS — Where Your Story Shines.
At GPS GEMS, we believe that gemstones are more than adornments — they are navigators of memories, milestones, and dreams. Our passion goes beyond crafting beautiful jewelry; we create legacies to be lived, loved, and cherished across generations.
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VISIT US
GPS GEMS, Bangkok,Thailand
23rd Floor, Jewelry Trade Center, 919/297 SiLom Rd, Chong Nonsi, Bang Rak, Bangkok 10500
23rd Floor, Jewelry Trade Center, 919/297 SiLom Rd, Chong Nonsi, Bang Rak, Bangkok 10500