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Highlights & Features
Inspired by vintage elegance, this round-cut moissanite ring combines timeless charm with understated brilliance. Its classic silhouette and delicate detailing bring a refined, nostalgic touch to everyday styling. An effortless expression of quiet luxury, thoughtfully crafted to The Stdiam Standard™.
Specifications
| Center Stone | Premium Stdiam™ (D/VVS1) |
| Cut Grade | Excellent (3EX) Hearts & Arrows |
| 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 | 2.5 mm (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
Beautiful ring- have had it for almost 3 years and it's lost 2 stones on the side
S
Really affordable engagement ring
M
I AM SHOCKED at how beautiful this ring is!!! So I just got engaged and my fiancé proposed to me with a gorgeous family heirloom of his. I wore the ring he gave me to work and immediately started scratching it up. I work at a gym as a personal trainer and am schlepping weights and barbells around all day. So we decided together that I wouldn’t wear the 14k gold antique ring to work, and we would get me something inexpensive that I could scratch up without worrying about. Hence ordering this ring. We went with the genuine moissanite and OMG it is beautiful. The picture doesn’t do it justice at all. I’ve received a ton of compliments on it and I can’t stop looking at it. Can’t beat it for the price. I’ve never cared about having a super expensive ring. It’s a what it symbolizes more than anything. So having my beautiful antique heirloom ring to wear when I’m not working or working out myself is perfect BUT this ring will be on my finger most of the time. I cannot recommend it enough!
T
The ring is absolutely beautiful, it’s very light weight, it’s my engagement ring and I love it so very much, I’ve had it for a year and it hasn’t tarnished and it’s very durable and I say that because I work with my hands but I have snagged it on my pants and there is no damage to it at all
E
My wife and I love it ! She said yes
C
I ordered size 11 which is my regular size fit other rings. This is a little loose but that's ok. The price is amazing and affordable, quality is great! Exactly what it looks like in the picture. Its not really shiny to me but its ok. Great band not too thick not too thin. I would most definitely purchase again. GET THAT RING SIS!!
L
My fiancé loves it! She wanted to wait a little while to leave a review to test it. I bought the ring in August and it’s now November. The ring quality and comfort is great. It’s an ideal thickness, and it’s gorgeous! The clarity of the stone is great for the price and it’s very durable. It’s been through a thorough test from wearing it and she can’t see any visual signs of scratches or anything. She had a friend ask if it was a more expensive ring. He was very impressed that it wasn’t. She’s VERY happy with it and it’s the perfect temporary engagement ring. Her best friend is going to make our wedding rings once we had a wedding date set. We’re gonna have a long engagement, a year or so until we can start saving money. Highly recommend.
J
This ring is absolutely stunning. I got it as a promise ring for my gf on our anniversary. She loved it! It’s durable, the stone shines like crazy, the quality and detail of the work is great and it’s definitely worth the money. Buy this anyone who’s reading.
A
I got this ring March of 2024, and I can say it's been the absolute best ring I've ever gotten. This ring is absolutely gorgeous and is true 925 silver. I wear this ring to do everything. I swim in it, shower, do house work, everything. None of the the jewelry have came out, it hasn't turned my finger green or anything and my skin is very sensitive to metals. 1000/10 I have already bought a different ring from this company and will definitely do so again.
L
Got this as a promise ring for my girlfriend and we both thought it was stunning. The shine and color are perfect, but the karat was a bit too much for her thin finger, so it didn’t look quite right. We decided to return it, but honestly, the ring itself is beautiful.
A
This ring is my favorite! I found the matching wedding band on Stdiam too
J
I had bought the wedding band that matches the ring (although not advertised that way) in October (it’s May) and have worn it every day and loved it. Since I didn’t want to pay to resize my engagement ring to a smaller size, I’d been looking for something that looked like it, and not being fit with the band, which I love, due to comfort and value. I eventually settled on this one (although looking nothing like my original engagement band) because it’s pretty, comfortable and matches. It sparkles nicely. The silver (as all silver) dulls a bit after use, but I love them together.The last photo is several months to a year later- it still holds up, and I wear them almost every day.
J
The ring is great! It looks stunning in person. I have had compliments on how shiny it is. It fits just right on my finger. It does not tarnish looks like new. It's not heavy it feels light. I LOVE this ring.
K
Beautiful!!! Love it.
R
Stunning, I ordered it a little big on accident but decided to keep it just incase my hands swell. it feels durable.
M
I LOVE this! So I waited forever for my fiancee to propose and when he did i was so excited....problem was the ring was too big! When I took it in I was told it could be over 3 weeks to get it back. I was bummed because I was finally a fiancé but couldn't wear a ring so I bought this one and damn! I have very sensitive skin and had no problem wearing this! I wore it everyday, sleeping, shower, working out, and it never tarnished or broke. I included a photo of this ring next to my actual engagment ring and im not sure if it shows in the picture but when it is right next to a real diamond you can tell the rings fake one isn't as shiny or clear BUT then its by itself its still stunning. It is also more light weight than my actual ring. My ring is platinum with 3 diamond so maybe that's where the weight difference comes from but if you want to forget a ring is on your finger this is the way to go! My fiancee and I waited until later in life to get married so we could be more financially established in our careers but every relationship is different so if you're young and broke this would be a perfect starter ring or promise ring! Even now that I have my actual ring back i will be keeping this ring as a backup if I ever need it
l
Super happy with this ring. Sparkles nicely and very pretty. The size runs a little big. Good quality. Good price.
C
First, I wear a 5.25 ring and ordered a 5.5. It fits securely with room and doesn’t spin. This is a stunning ring! It’s solid, dainty, comfortable, fits true to size, and the best part, simple. I’m a lover of all things shiny! I will say moissanite is my new love language. The fire that comes from this ring is jaw dropping. I say that cause I love it, but if you want something to look like a diamond, this is mistaken often for a diamond. It’s got a good weight to it, fits comfortably, it’s low profile and the prongs are securely placed so it doesn’t scratch or catch on anything, the twisted band is comfortable and the side stones do not rub against neighboring fingers which I was worried about. It can hold up to date to day chores with zero worry for tarnishing. It hasn’t scratched in the dirt gardening, or playing cars and legos lol. I love it. This ring is available in sterling silver, 10k, and 14k white gold. You could propose, see how you like it, and spend money on the more expensive one later or get the less expensive one for travel as long as you can tell the difference between them. It’s truly stunning. Mine came with an id card for the genuine moissanite stone and was packaged securely in the box. It got delayed for delivery but once it arrived it was perfect! Again… this stone would not pass as a diamond… it’s way too much rainbow for a diamond but if you’re wanting that wow factor only moissanite can give, it’s definitely the one! I would recommend this ring with either stone. Hands down!Sidenote: another reason I took a chance on this one was reviews for all three metal options this is available in have been consistent and generally positive. The company also has a great reputation for customer service, corrections, and replacements. That was important to me.
K
Absolutely stunning!! I love it and I can't stop staring at it! I needed to buy a ring in place of my wedding ring for travel, work and other occasions that could possibly damage or risk loss/theft. This is a wonderful place holder and I'm very happy with it. I got the genuine moissanite and honestly, the pictures don't do it justice. It's so sparkly, I love it! I'm normally a size 4.25 but bought size 4.5 and it fits with a little room which is totally fine. Definitely a wonderful purchase and would highly recommend :)
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