Moissanite and Lab Diamond Engagement Rings
Everyone Is
Beautiful.
Custom engagement rings in moissanite and IGI certified lab grown diamond, handcrafted in solid gold and made for you.
30 seconds
Find your ring
Which stone speaks to you?
Pick a shape
And your budget?
Your match
Shop by price
Something for every story
Designed with you. Made by hand.
Tell us what you have in mind. We sketch it, show you the 3D design, and craft it in solid gold once you approve. You see your ring before it ships.
Since 2016 · IGI certified lab diamonds · Solid 9K to 22K gold · Shipped worldwide
Shop by shape
Your shape, your gold
Choose your gold
Every ring is made to order, so you choose the shape and the colour of the gold. Tap to see each one.
The custom process
How it works
Share your idea
Send a photo, a sketch or a few words. Tell us the stone, the metal and your budget.
Approve your design
We send a 3D design for your approval before anything is made.
We craft it
Your ring is set and polished by hand. We send photos as it takes shape.
Delivered to you
Insured shipping worldwide.
Reviews
From our clients
4.9 ★★★★★ · 41 Google reviews
I recently purchased a stunning 3 carat oval diamond ring set in 18k yellow gold… We’re based in Vancouver, Canada, and the shipping from Thailand was fast and completely hassle-free.
I arrived in Bangkok and got in contact via WhatsApp that I had a 48 hour window to get a ring of specific specs. They were right onto it! … The ring was delivered right to me in my hotel comfortably ahead of time.
All three rings (Engagement ring, woman's wedding band, man's wedding band) are of excellent quality. The two wedding bands were nicely engraved on the inside.
The owner went above and beyond to ensure my custom ring was designed to perfection, and the final result exceeded all my expectations. … They delivered my ring in just 4 days!
The delivery man … showed up at 10:45 pm in my hotel, so I could have the ring on time for my proposal in Phuket. … The craftsmanship, sparkle, and quality were beyond expectations.
Once you find a business like RIVA Moissanite, you remain loyal to them because you know you are purchasing far more than just a beautiful piece of jewelry.
RIVASOM
Lab Grown Diamonds
Real diamonds, grown above ground. Every RIVASOM centre stone comes with an IGI certificate and is set in solid gold.
The guide
Moissanite or lab diamond?
Moissanite
- A separate gemstone, silicon carbide
- 9.25 on the Mohs hardness scale
- More fire and rainbow sparkle than diamond
- The lower cost choice for a larger stone
- Made to order in solid gold
Lab grown diamond
- A real diamond, identical to mined diamond
- 10 on the Mohs hardness scale
- Classic white brilliance
- IGI certified
- Made to order in solid gold
The workshop
Made in our Bangkok workshop
Every RIVA piece is cut, set and polished by hand by our jewelers in Bangkok. Visits by appointment.
Questions
Is moissanite a real diamond?
No. Moissanite is its own gemstone, made of silicon carbide. It is harder than every gem except diamond and shows more fire than diamond.
Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are chemically, physically and optically the same as mined diamonds. Every RIVASOM lab diamond centre stone is IGI certified.
How long does a custom ring take?
Making starts once you approve your 3D design. We send photos of your ring before it ships.
Which countries do you ship to?
We ship worldwide, including the United States, Canada, the United Kingdom, Australia and across Asia. Message us for shipping to your country.
Can my ring be resized?
Message us with your order number and we will help with sizing.
Can I visit you in Bangkok?
Yes. Our Bangkok workshop is open to visits by appointment.