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Highlights & Features
Our Round Cut Moissanite Ring is inspired by the philosophy of quiet luxury. It features a brilliant round center stone and a discreet hidden halo for subtle fire. Handcrafted in 18K gold plated silver with a sparkling pave band, this piece serves as a timeless, versatile ethical luxury essential for everyone.
Specifications
| Center Stone | Premium Stdiam™ (D/VVS1) |
| Cut Style | Round Brilliant Cut |
| Metal Options |
18K White Gold Vermeil (925 Silver) 18K Yellow Gold Vermeil (925 Silver) Solid 10K White Gold Solid 10K Yellow Gold Solid 14K White Gold Solid 14K Yellow Gold |
| Band Width | 1.5mm (Comfort Fit) |
| Plating Standard |
8-Layer 18K Gold Plated (2.5μm Thickness) Applies to vermeil options only. |
| Setting Type | Prong Setting with Hidden Halo |
| Refractive Index | 2.65 - 2.69 (Outsparkles Diamond) |
| Skin-Friendly | 100% Lead-Free & Nickel-Free |
| Packaging | Signature Walnut Wood Box |
| Certification | GRA Authenticity Certificate Included |
Choose Your Metal
Swipe to compare →
18K
White Gold Vermeil
18K white gold over 925 sterling silver
The bright look of white gold at an accessible price.
The plating may wear over time, but the similar silver tone beneath makes color changes less noticeable.
BRIGHT WHITE · EVERYDAY VALUE
18K
Yellow Gold Vermeil
18K yellow gold over 925 sterling silver
A beautiful, affordable way to enjoy the rich look of gold.
The gold plating may gradually fade with wear, revealing the silver beneath.
RICH GOLD TONE · EVERYDAY VALUE
10K
Solid White Gold
Solid 10K white gold throughout
A lasting choice for everyday wear, with white gold all the way through.
The surface brightness may soften with wear; beneath the finish, it is still white gold.
SOLID GOLD · WHITE GOLD THROUGHOUT
10K
Solid Yellow Gold
Solid 10K yellow gold throughout
Warm gold color that comes from the metal itself.
As the surface wears, the metal beneath retains its gold tone, with no silver base to show through.
SOLID GOLD · LASTING GOLD TONE
Not sure about your size?
✓If you're between sizes, choose the half size up for comfort
✓Standard US sizing with EU / UK conversion reference
✓Free resizing within 30 days for peace of mind
✓Standard US sizing with EU / UK conversion reference
✓Free resizing within 30 days for peace of mind
Find your closest match using the chart below.
| US / CA MX |
UK / AU IE / NZ / ZA |
FR | DE / RU UA / Asia |
IN / CN / JP SA / TR / IL |
IT / ES NL / CH |
DIA (mm) |
CIRC (mm) |
|---|---|---|---|---|---|---|---|
| 4 | H ½ | 47 | 14.9 | 7 | 7 | 14.9 | 46.8 |
| 4.5 | I ½ | 48 | 15.3 | 8 | 8 | 15.3 | 48.0 |
| 5 | J ½ | 49 | 15.7 | 9 | 9 | 15.7 | 49.3 |
| 5.5 | L | 51 | 16.1 | 11 | 11 | 16.1 | 50.6 |
| 6 | M | 52 | 16.5 | 12 | 12 | 16.5 | 51.9 |
| 6.5 | N | 53 | 16.9 | 13 | 13 | 16.9 | 53.1 |
| 7 | O | 54 | 17.3 | 14 | 14.5 | 17.3 | 54.4 |
| 7.5 | P | 56 | 17.7 | 15 | 16 | 17.7 | 55.7 |
| 8 | Q | 57 | 18.1 | 16 | 17 | 18.1 | 57.0 |
| 8.5 | Q ½ | 58 | 18.5 | 17 | 18 | 18.5 | 58.3 |
| 9 | R ½ | 59 | 18.9 | 18 | 19 | 18.9 | 59.5 |
| 9.5 | S ½ | 61 | 19.4 | 19 | 21 | 19.4 | 60.8 |
| 10 | T ½ | 62 | 19.8 | 20 | 22 | 19.8 | 62.1 |
Fit Tip: If your knuckle is noticeably larger than the base of your finger, we recommend measuring both and choosing a size in between to ensure the ring slips on comfortably.
→ View Full Size Guide & Measure Tips
If it’s not quite right, our hassle-free exchange makes it effortless to get the one that is. We offer ONE FREE RESIZING within 30 days of purchase.
Shipping & Crafting
Crafting Time
Most standard whole sizes (5–9) are crafted within
5–7 business days
.
For the best fit, half sizes and sizes 4, 10 & 11 require additional sizing and finishing steps and typically take 10–15 business days .
For the best fit, half sizes and sizes 4, 10 & 11 require additional sizing and finishing steps and typically take 10–15 business days .
Free Standard Shipping
Worldwide · 150+ countries
7–12 Business Days
VIP Shipping
Available at checkout · $14.90
4–7 Business Days
Delivery estimates apply after dispatch. Crafting time is separate from shipping time.
Risk-Free Purchase
30-Day Returns & Exchanges
Returns and exchanges available within 30 days of delivery.
Lifetime Stone Guarantee
Your center Moissanite is guaranteed for life and will never lose its brilliance.
2-Year Craftsmanship Warranty
Every piece is protected against verified manufacturing defects.
*Note: Excludes normal wear, accidental damage, lost items, and third-party modifications.
Crafted by Masters. Engineered Beyond Tradition
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Moissanite Guide
Moissanite, Explained.
Clear answers to the questions shoppers ask most about moissanite, from durability and brilliance to long-term care.
Is moissanite a real gemstone or a fake diamond?
Moissanite is a real gemstone with its own chemical composition and optical properties. It is not a type of diamond or a fake diamond.
Modern jewelry-grade moissanite is lab-created for consistency and clarity, with a distinctive brilliance and fire of its own.
What is the difference between moissanite and diamond?
Moissanite and diamond are different gemstones. Diamond is carbon, while moissanite is silicon carbide.
Visually, moissanite often displays more colorful fire, while diamond has its own characteristic balance of white brilliance and dispersion. Both can appear bright and refined, but their optical character is not identical.
Is moissanite durable enough for everyday wear?
Yes. Moissanite measures approximately 9.25 on the Mohs hardness scale, making it highly resistant to scratching and well suited to regular wear.
As with all fine jewelry, the setting and metal should still be protected from hard impacts, abrasive surfaces and strenuous activities.
Does moissanite get cloudy or lose its brilliance over time?
Moissanite does not normally become permanently cloudy with wear. Oils, lotions, soap and everyday residue can temporarily soften its sparkle.
Gentle cleaning can restore its clarity and brilliance, while regular care also helps keep the surrounding metal and settings looking their best.
How should I clean and care for moissanite jewelry?
Clean moissanite jewelry with lukewarm water, mild soap and a soft brush, then rinse thoroughly and dry with a soft, lint-free cloth.
Pay particular attention to the underside of stones and around settings where residue may collect. When not being worn, store your piece separately in its original STDIAM walnut wood box to help reduce contact and rubbing against other jewelry.
For more detailed guidance, visit the STDIAM Jewelry Care Guide .
Why is moissanite more affordable than diamond?
Moissanite follows a different production, supply and pricing structure from diamond. Because jewelry-grade moissanite can be created in a controlled laboratory environment, it can offer substantial visual presence and durability at a lower price point.
The lower price does not make it a lower-quality version of diamond. It is a different gemstone category with its own characteristics.
Can people tell the difference between moissanite and diamond?
The difference can be subtle at a glance, especially once a stone is set in jewelry, but moissanite and diamond are not visually identical.
Moissanite generally shows stronger spectral fire, while diamond has its own characteristic pattern of brilliance. Cut, stone size and lighting can all influence how noticeable those differences appear.
Is moissanite suitable for engagement rings and meaningful jewelry?
Yes. Moissanite combines high durability, distinctive brilliance and a wide range of cuts and settings, making it suitable for engagement rings as well as jewelry chosen for anniversaries, milestones, gifting or everyday wear.
Ultimately, the right choice comes down to the design, materials and character that feel right for you.
J
VERY happy. My regular ring is way too big and flops around. Bought this one in a hurry as I have a big family wedding in 2 days. Arrived very promptly. True to size (6). For comparison: the band I have it paired with is all genuine diamonds, VVS1 clarity and honestly they are quite compatible with this Moissanite...also came in a very nice, hard, flip top box. Would purchase again.
J
This ring is SO pretty. It fits perfect and is super sparkly. The center stone does look a tiny bit fake because of how big it is but honestly you could only tell if your looking super close up. Definitely worth the price. I was super sad that I outgrew my ring after kids but this is the perfect replacement for the time being!
A
I purchased this ring to wear in place of my engagement ring while it is sent out for sizing that takes about 3 weeks. It is hard to tell which one is the real diamond.
L
It is so beautiful it’s 18 care over plated on the stolen server moist diamond guy shut out if you didn’t wanna buy this ring you want engagement ring you must buy this one is very fordable price it is gorgeous
A
Gorgeous! I get complimented daily. I bought it for myself so men don't keep harassing me at work and it's definitely hard to miss! Ive been wearing this for 10 months, I haven't taken it off once, not even to swim or shower, and it still sparkles like day 1. Definitely would buy again in a heartbeat!!
S
GET IT GET ITAMAZING quality and shine and clarity is beautiful
R
I was ready for an upgrade but didn’t see the reason that we had to spend thousands of dollars when this ring is just as good, and just as beautiful. I paired it with two other bands I found on Stdiam and love it so much. I purchased a 5.5 based on a ring sizer I have at home and while it is a smidge loose, it has worked out just fine and doesn’t spin.
S
I have to agree with the other reviews. This is a beautiful ring. It does run big and not to mention they sent the wrong size but I wear on my right middle finger instead. Worth the money.
l
I bought this for vacation. I didn't want to wear my real diamond ring on my trip, afraid of losing it. This moissanite, with its 2-carat center stone, is much prettier than I imagined. And it cost less than $110! (I paired it with a $99 cubic zirconia band.) Comparing it side-by-side with my real diamond ring, I can see that the quality of this moissanite is slightly different, but in itself, it perfectly qualifies as a vacation ring. I also love the delicate and refined band of this moissanite ring. It looks quite different paired with my slightly wider vintage-style ring (which I also love). My only concern is whether it will turn my finger green or black. I will update this review if it does. Update: I've been wearing this ring for over a year now. I've worn it several times, and it has never discolored my skin! (Updated August 8, 2025)
A
This ring is stunning! I bought to wear in place of my engagement ring when traveling. It’s sparkly, great clarity, and has to be colorless or very near colorless. My real diamond ring is on the bottom in the pictures, and is a little over 2 carats, VSI1, F color. Aside from the size, they look so so similar and I’ve had family that’s already seen my real ring, compliment this ring without knowing it’s a different one. Even my husband who very intensely researched diamonds and picked my engagement ring out himself was shocked. Highly recommend!
K
I have gained weight through Covid, and haven't been able to wear my engagement ring for two years. I got tired of the silicon bands I have, and I like that it's known I'm taken ;) . Ive only worn this ring for a day, but I'm obsessed. It feels true to it's size, my engagement ring is a 4.5, this was a 5, and it fits perfectly (I do have "piano fingers" though). I compared to other solitare 1.5 carat true diamond settings, and it can pull off an honest duplicate. Very happy!Will report back after some time on the wear and tear. (4 star off the bat... can't shoot too high)
R
Beautiful brought and sparkly ring that looks better than a diamond for a lot less money. I bought it for a gift and she is thrilled and gets compliments all the time.
G
Beautiful ring. I have had so many compliments on it people actually thinks it is real.
G
Wore it on recent vacation. Looks very real, is not loosing shine or color as I've had happen with other rings.
E
This is the perfect piece of jewelry. Great size, cut and clarity. The perfect travel ring, pool ring, ocean ring or just a nice change. Absolute steal for the price.
R
Bought as a vacation ring. I received many compliments and no one would ever know it was not real.
k
This is almost identical to my diamond ring, I wear thus as a travel ring and keep my real ring safe at home. If someone is looking for a beautiful engagement ring and cannot afford a diamond, this is an excellent choice.
R
It is a stunning ring and my wife loves it. Perfect for her size and she loves it.
G
The ring has a clean, simple look and fits comfortably. It's decent for everyday wear,
D
Beautiful ring
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