DESIGNED WITH INTENTION
Every STDIAM ring begins with thoughtful proportions and refined details. From the graceful curve of the band to the height of the setting, we focus on balance, comfort, and timeless elegance.
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Every order plants 1 real tree via Tree-Nation.
Highlights & Features
Defined by clean lines and contemporary elegance, the Vivienne features a princess-cut lab-grown diamond with a striking square silhouette and exceptional brilliance. Its precisely arranged facets create a captivating play of light, while the sharp geometric edges lend a distinctly modern character. Elevated in a refined solitaire setting above a slender polished band, Vivienne balances architectural simplicity with luminous sophistication, offering a timeless design with a confident, contemporary presence.
Specifications
| DIAMOND DETAILS | |
| Center Diamond | Princess-Cut Lab-Grown Diamond |
| Cut Style | Princess Square Brilliant Cut |
| Colour & Clarity | E–F (Colorless) / VVS1–VVS2 |
| Carat Weight | As Selected |
| Diamond Finish |
Excellent Polish & Symmetry No Fluorescence |
| Proportions | L/W Ratio: 1.00–1.05 |
| Certification |
IGI or GIA Grading Report For center diamonds over 0.50 ct. |
| SETTING & MATERIALS | |
| Metal Options | Solid 10K / 14K Gold (White or Yellow) |
| Setting Type | High-Set Prong Solitaire |
| Band Width | 1.8 mm |
| Skin-Friendly | Lead-Free & Nickel-Free |
| Packaging | Signature Walnut Wood Box |
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
✓One free resizing within 60 days of delivery for peace of mind
✓Standard US sizing with EU / UK conversion reference
✓One free resizing within 60 days of delivery 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 the fit isn’t quite right, we offer ONE FREE RESIZING within 60 days of delivery for lab-grown diamond rings. Shipping costs are the customer’s responsibility.
Shipping & Crafting
Crafting Time
Each lab-grown diamond ring is crafted to order within 15–20 business days.
Free Standard Shipping
Worldwide
5–12 Business Days
Delivery estimates apply after dispatch. Crafting time is separate from shipping time.
Final Sale & Resizing
All Diamond Sales Are Final
All diamond items are non-returnable and non-exchangeable once sold.
One-Time Complimentary Resizing
One free resizing is available within 60 days of delivery.
Customers are responsible for shipping costs when sending the ring back for adjustment.
Customers are responsible for shipping costs when sending the ring back for adjustment.
Lifetime Stone Guarantee
Your center Gemstone 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.
Insured Express Delivery
60-Day Free Resize
Expert Diamond Guidance
IGI or GIA Diamond Report
Thoughtfully Presented, Beautifully Yours.
Every STDIAM ring arrives in our signature walnut wood box, complemented by a deep green velvet interior. A refined presentation designed to make every detail feel special.
Signature Packaging
Your ring arrives in our signature walnut wood jewelry box, featuring a soft deep green velvet interior. Beautifully presented and ready for gifting.
Diamond Certification
Lab-grown diamond center stones over 0.50 carat are accompanied by an individual IGI or GIA grading report, detailing the diamond's characteristics.
Resizing & Aftercare
One complimentary resizing is available within 60 days of delivery, where the ring design permits. Customers are responsible for shipping costs both ways. All diamond purchases are final sale and cannot be returned or exchanged.
A Ring, Uniquely Yours.
Found a design you love, but wish to make it your own? From diamond shapes and precious metals to the finer details of your setting, we offer personalized design options to help bring your vision to life.
DISCUSS YOUR DESIGN
The STDIAM Difference
SELECTED FOR BRILLIANCE
Every STDIAM lab-grown diamond is carefully selected with attention to its proportions, balance, and natural play of light. A thoughtful approach to exceptional brilliance and enduring beauty.
ONE ORDER. ONE TREE.
Every STDIAM purchase gives back. Through our partnership with Tree-Nation, we fund the planting of one tree with every order, turning a meaningful purchase into something that grows beyond it.
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