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New Collection
The House where impossible becomes possible.
Experiment your custom ring design with zero creative limits.
The Bespoke Journey
How your custom piece comes to life.
No. 01
The Vision
It begins with your story. Whether utilizing our Bespoke Engine or consulting directly, we map out the balance, proportion, and purpose of your piece.
FIND THE PERFECT PIECE THAT REFLECTS YOUR INDIVIDUALITY AT SIAMRINGTON
Designed in Bangkok. Crafted with intention. Worn with meaning.
New Arrivals
The newest additions to our collection, bringing fresh inspiration to timeless design and everyday elegance.
Our Vision
Jewelry shaped by time, refined by hand.
Elemental Gems
Vivid gemstones, thoughtfully selected and precisely set designed to highlight nature’s rarest color and light.
Explore the Collection
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Craftsmanship Made for Fine Jewelry
We refine our craft the way fine jewelry demands patiently, precisely, and without compromise. From setting and polishing to final finishing, every detail is inspected for balance, brilliance, and longevity so each piece feels exceptional the moment you wear it.
Direct from the Workshop
Watch the Process
Every custom piece takes shape at our bench. See the raw craftsmanship behind our bespoke orders.
Siamrington Atelier
Curated moments craft, light, and detail.
Dec 2025
This piece features a 14K gold setting with a total diamond weight of 1.54 cara…
Dec 2025
We are currently in the process of setting the gemstones from this month’s stoc…
Dec 2025
Over the past few days, I’ve been sketching a new jewelry design to share with…
Dec 2025
This piece is an 18K yellow gold setting with 1.10 ct. total natural genuine di…
The Siamrington Standard
Authentic materials, masterful execution, and uncompromising craftsmanship define every Siamrington creation.
Source & Materials
18K Gold, Platinum & Sterling Silver
Every bespoke commission begins with exceptional materials. We craft in 950 Platinum, Sterling Silver, and 18K Solid Gold, including Yellow, White and Rose Gold.
Regardless of the precious metal you choose, every piece receives the same meticulous craftsmanship, engineering and finishing that define the Siamrington standard.
Custom karat weights (up to 24K) are also available upon request to suit your specific lifestyle.
Authenticity
Natural Diamonds & Unheated Gemstones
We exclusively work with conflict-free natural diamonds and carefully selected unheated and untreated rubies, sapphires and emeralds whenever available.
Choosing natural gemstones preserves the rarity, beauty and enduring value of every bespoke jewellery piece while maintaining complete authenticity.
Design & Engineering
Designed & Crafted in Bangkok
Our Bangkok design studio combines millimetre-precise 3D CAD engineering with traditional hand craftsmanship, ensuring every bespoke commission achieves both structural precision and artistic character.
From design development and prototyping to stone setting and final polishing, every stage is carefully supervised by experienced jewellery specialists committed to lasting quality.
Customer Service
We’re here to take care of you
Whether you're tracking an order, booking an appointment, or learning how to care for your jewelry, you can find everything you need in one place.
How can we assist you today?
Choose a topic below to get tailored help with your Siamrington experience.
Need something else?Contact our team
Tracking Order
Check the real-time status of your Siamrington order.
Book Appointment
Schedule an in-person or virtual consultation with us.
FAQs
Browse answers to the most common questions.
Carat Size Chart
Explore visual charts to understand diamond carat sizes and proportions.
Size Guide
Find your perfect ring and bracelet size with ease.
Diamond Guide
Learn the essentials of diamond grading, 4Cs, and expert buying tips.
Jewelry Care
Discover how to care for your jewelry at home.
Shipping Information
Learn about delivery timings, duties, and packaging.
Returns & Refunds
Understand our return, exchange, and refund policy.
Inquiry Us
Send a question and our team will personally assist you.
Can't find what you're looking for?
Contact our teamBespoke & Collections
Custom Jewelry Inquiry
Tell us about the piece you have in mind. Our team will carefully review your request and get back to you with guidance, options, and next steps.
Inquiry Form
Please fill in the details below. Fields marked with * are required.
Have questions in mind?
Explore our customer service guides for quick answers on sizes, shipping, appointments, and order tracking.