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Highlights & Merkmale
- Stdiam™ Fire: Handverlesener D/VVS1 Moissanit mit einem höheren Brechungsindex als herkömmliche Diamanten.
- Starke Vergoldung: 8-Schicht 18K Gold (2.5µm) – entwickelt für einen dauerhaften, strahlenden Glanz.
- Edle Verpackung: Präsentiert in unserer charakteristischen handgefertigten Walnussholzbox.
- Ethischer Luxus: 100% im Labor gezüchtetes, konfliktfreies und hypoallergenes S925 Sterlingsilber.
Spezifikationen
| Mittelstein | Premium Stdiam™ (D/VVS1) |
| Schliffgrad | Exzellent (3EX) Hearts & Arrows |
| Metallbasis | Massives S925 Sterlingsilber |
| Beschichtungsstandard | 8-Schicht 18K Weißgold (2.5µm) |
| Fassungstyp | Master-Hand Mikrofassung (Sichere Krappen) |
| Brechungsindex | 2.65 - 2.69 (Funkelt mehr als Diamant) |
| Hautfreundlich | 100% Bleifrei & Nickelfrei |
| Verpackung | Signature Walnussholzbox |
| Zertifizierung | GRA Echtheitszertifikat inklusive |
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.
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