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Highlights & Features
Inspired by a constellation of enduring love, this classic three-stone moissanite ring captures the brilliant light of your past, present, and future. A timeless symbol of your journey together.
Specifications
| Center Stone | Premium Stdiam™ (D/VVS1) |
| Cut Grade | Excellent (3EX) Hearts & Arrows |
| Metal Base | Solid S925 Sterling Silver |
| Band Width | 1.8mm (Comfort Fit) |
| Plating Standard | 8-Layer 18K Gold Plated (2.5μm Thickness) |
| 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
Explore More Collections
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.
L
Beautiful and sparkly. Fit is perfect. Not sorry at all that I bought it.
C
Beautiful ring set. Doesn't look fake and is so sparkly. I like it more than my real set. Fits great and is holding up great. I am a dog groomer and it gets wet and soapy all day long and it still looks great.
H
I get complimented on this ring daily. Love the unique look and the sparkle is very eye catching.
J
Beautiful ring…great quality for the price. I should have sized down half of a size.
W
Love it ! It fits perfect has lots of sparkle too!
C
I was looking for a dupe to my engagement ring while it was being repaired. Pleasantly surprised by the quality and sparkle of this ring. Hard to tell next to my platinum diamond wedding ring. Very happy.
T
Very pretty ring. Only complaint is the band is a bit thin, but comfy and good quality. I've been wearing for a month and metal and stones are still shiny and sparkly. I bought as a substitute for my wedding ring, which is too small for me. It's comfortable and cute .Totally worth the price. The Moisonite looks just like a diamond to me.
B
Absolutely gorgeous! Sturdy band/setting. I included video that showcases how it sparkles. True to size. Mine came with a finger measuring device to keep handy.Stones are bright and clear. Band is heavy enough to feel sturdy but narrow enough to be stackable or pair with a wedding band. No evidence of tarnish yet. No one has guessed that it isn’t real and the people I’ve told are shocked and buying their own. Definitely recommend.I’ve had it about a month. If it becomes damaged, I’ll update.
N
• This timeless moissanite ring is perfect for people who like a little sparkle. I'm so pleased with the heft of the sterling silver setting. The bright, colorless stones are securely mounted in baskets with prongs. The band gently tapers for a comfortable fit. This classically designed piece is an excellent, cost-effective, sustainable alternative to earth-mined diamonds. I highly encourage you to explore the benefits and beauty of owning moissanite.• I'm adding a couple of videos and photos so you can see what a size 8.5 looks like on my (not-so-delicate) left ring finger. (My vintage pinky ring is an heirloom and has 3 small natural diamonds.)
s
Omg! What a beautiful ring! The sparkle is just gorgeous. I ordered other rings but returned them because this ring was so much nicer. Have ordered 2 more from stdiam. Love them. Look so real!
K
Very nice ring. Stones are sparkly and it's well made. Would definitely buy again
W
Love it!
A
Cute as expected
g
This is a gorgeous ring..like others that I’ve ordered..great quality and you cannot b at the price
L
It’s pretty and says gold plated hypoallergenic but it still made me itchy. Could not wear.
C
It was great deal
p
Very good quality
S
Sparkles likeDiamonds
s
Beautiful ring. Lot's of sparkles.
M
I love this ring, the size is perfect with my Diamond ring. The sparkle is so beautiful. It comes in a beautiful box with a Thank you card. Just buy it, you will not regret this purchase.
S
Beautiful and very sparkly!!!!
K
Lovely ring of high quality and authentic looking - can't tell that they aren't real diamonds with the naked eye. Runs true to size. Highly recommend.
M
This ring is beautiful. The sparkle is second to none. it feels substantial and made well. It looks beautiful with my engagement and wedding rings. You can’t go wrong with this ring.
C
I love it!
L
Beautiful ring. Looks just like diamonds.
C
Stone already fell out purchased in December not even a year ago
M
I lost my $800 diamond ring and just don’t have the funds to replace it at this time. The ring arrived today and I am so pleased with my purchase.
M
The ring was really beautiful but sadly too big for me. The good part was I gifted it to my best friend. Also included in the box was a ring sizer which I will be using in the future - a very useful tool.All in all, the stones were gorgeous and set perfectly. I have purchased other jewelry from this company and have never been disappointed. I would highly recommend this company and their jewelry. Excellent value for the money.
B
I love it asDiscribed thanks
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