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Highlights & Features
Specifications
| Center Stone | Premium Stdiam™ (D/VVS1) |
| Cut Grade | Excellent (3EX) Hearts & Arrows |
| Metal Options |
18K Yellow Gold Vermeil 18K White Gold Vermeil 10K Yellow Gold 10K White Gold |
| Band Width | 1.8mm (Comfort Fit) |
| Plating Standard |
8-Layer 18K Gold Plated (2.5μm Thickness) Applies to vermeil options only. |
| Setting Type | Master-Hand Micro Setting (Secure Prongs) |
| 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.
A
This ring is gorgeous! The 4-prong setting holds the stone perfectly. I get compliments everywhere I go.
J
Beautiful ring and great quality
B
Delicate and beautiful. I bought the 3ct ring. The size runs as said. I am a size 7 and it fits perfectly. Never had an oval shape before but I love it.
R
I am so pleased with this ring! It is delicate, classic and the simplicity is beautiful. The band is thin and the center stone is very sparkly.
K
(Photos can reference a 2 carat moissanite, in sterling silver band, size 8) it’s beautiful I am a true size 8 but it’s a little loose, it may be because the band is so tiny. I used the size adjusters that came with so it doesn’t slide around my finger. It looks cute and sparkles like crazy. The band is very fragile though being so tiny and can bend easily. It’s good for the price and looks way more expensive than it was priced for.
A
You aren’t beating this price/quality combo! The size six is accurate and fits great. The ring is so dainty and beautiful. I love it!Because the ring is flush, you won’t be able to pair it with a straight band. There will be a gap.I started with the 1ct ring but after I couldn’t find a wedding band I liked to go with it, I returned the 1ct ring and bought the 2ct size. I’ll just be wearing the ring by its self now!
m
i was worried about this ring looking fake.. the other review pictures do not do it justice..
S
RUN DON’T WALK! This ring is GORGEOUS. It looks like an authentic natural diamond. It does have the “rainbow sparkle” but it’s stunning in natural light.I had to return my gold plated for silver due to it tarnishing! Keep that in mind, but the stone is stunning! I got a lot of compliments on it.UPDATE: This is my wedding set and the NEW sterling silver ring. So gorgeous. I’m so proud to wear my ring. Thank you to this brand. Please add wedding bands to your shop.
S
Such a beautiful ring, I have skinny fingers so I didn’t want something too dramatic, this is so dainty and perfect. I’ve also accidentally showered with it, been in the pool and constantly washed my hands and it still shines so beautifully! Love it!
R
My boyfriend and I have started that talk about what ring would I like. I didn't want to go into a store and be pressured. I know what 2 styles I'd like so I did order both. This one is my favorite as well as my boyfriends. Now he knows he can take this and tell the jeweler THIS but real lol
J
Gorgeous! Ended up being larger than I thought it would be. Love the sparkle! Ended up adding two stacking rings with it and it is breathtaking!
D
Honestly…this ring is gorgeous for what it is! Paired it with a thick band for an expensive look. Love it!✨
K
Looks cute! True to size! Bought 5.5. Have not worn it long enough to see if it tarnishes. The band is much thinner than the picture though.
M
Beautiful ring for the price. The setting is a bit big to stack with other rings but it’s no problem and the size is accurate.
L
I bought this ring to preserve my real wedding rings. I am a mom and I am constantly playing outside and cleaning so I wanted something that looks real but isn’t expensive. I am very impressed with the clarity! It is a beautiful ring. The sizing runs a little big but I would not say big enough to size down. It is pretty dainty, so I hope it holds up. I will update if I have issues.
A
I got fat so my wedding ring doesn’t fit me right now, so I ordered this cheap one and I am actually impressed with the quality. It’s so beautiful and dainty and really sparkly. Looks real to me! Also I noticed right away that I can’t even feel it on, it’s so light weight and the band is so simple and thin that it feels like I don’t have a ring on at all!Even when my real wedding did fit me, I hardly wore it cause I work with my hands for a living and it was always in the way.This ring will be great. I just got it today, so i don’t know how it is going to hold up. But it was so cheap I wouldn’t mind ordering again if I needed to. Love it!
M
It’s very beautiful and shiny! But in comparison to my 1ct engagement ring, it’s a bit smaller.
C
I am absolutely obsessed! My husband bought this as my replacement ring because my previous one was damaged. I am completely blown away with the quality and couldn’t be happier
K
Beautiful !
H
I bought this to wear in place of my real diamond ring. It is beautiful. It is very difficult to tell with the naked eye whether it is a diamond or a moissanite.
D
I bought this as a promise ring and it holds so much meaning while still being incredibly stylish.
A
The ring is beautiful although I would go a half size larger, the size 8 fit like a 7 , the band is super thin.
J
Exactly as described. Looks very similar to my real diamond ring! Comes with plastic sizer adjuster which was very helpful.
A
Beautiful don't know if it will hold up overtime
M
I'm delighted with this purchase! I bought it to use at my engagement party before I got my wedding ring and the similarity is incredible. I'm still using it because it has excellent quality.
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