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3 Carat Oval Prong Set Lab Grown Diamond Vintage Engagement Ring
3 Carat Oval Prong Set Lab Grown Diamond Vintage Engagement Ring
- Available in 10K Gold, 14K Gold, 18K Gold, Platinum
- Made to order and checked at our New York office
- Free, insured shipping within the US
Please choose your metal color.
Please choose your ring size.
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Everything you need, worry-free.
Made to order. Order today and it arrives by Sunday, 25 Oct
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Talk to our jewelry team. We're here 24/7 by phone, WhatsApp, email and live chat.
Product Details
Product Details
Oval Prong Set Lab Grown Diamond Engagement Ring showcases a stunning oval center diamond with a timeless four-prong setting and an intricate vintage-inspired band. Delicate round accent diamonds and elegant milgrain detailing create exceptional brilliance with refined craftsmanship.
Designed for proposals, anniversaries, and lifelong celebrations, this fine jewelry ring offers timeless elegance for everyday wear. An ideal gift for her and a beautiful symbol of everlasting love, it's perfect for those seeking a luxurious yet meaningful engagement ring.
Specifications
- Jewelry Type: Ring
- Ring Style: Vintage Solitaire Engagement Ring
- Diamond Type: Lab Grown Diamond
- Center Diamond Shape: Oval Cut
- Center Diamond Size: 11.50 × 8.10 mm
- Center Diamond Weight: 3.00 Carat Approx.
- Side Diamond Shape: Round Cut
- Side Diamond Weight: 0.40 Carat Approx.
- Diamond Clarity: VVS–VS
- Diamond Color: E–F
- Setting Style: Four-Prong Solitaire with Diamond Accent Band
- Metal Options: Available in selected variant
- Metal Color Options: Available in selected variant
- Customization: Available
- Certification: IGI Certified Center Diamond
- Production Type: Made to Order
- IGI Report Number: LG828617605 (Sample Reference: You can verify this sample on the IGI website. Your actual diamond will come with its own unique IGI certificate matching your order).
Features
✓ Elegant oval-cut lab grown center diamond with exceptional brilliance.
✓ Vintage-inspired band featuring round accent diamonds and fine milgrain detailing.
✓ Secure four-prong setting designed for maximum light performance.
✓ Comfortable profile for everyday wear.
✓ Available in multiple precious metal options and colors.
✓ IGI certified center diamond for confidence and authenticity.
✓ Customizable to match your preferred style.
✓ Perfect for engagements, anniversaries, and meaningful gifting.
Why You'll Love It
This elegant engagement ring blends classic sophistication with vintage-inspired craftsmanship for a truly timeless look. The brilliant oval center diamond is beautifully complemented by intricate side detailing that enhances its sparkle. Designed for lasting comfort and everyday elegance, it's a meaningful choice for proposals, anniversaries, and cherished milestones.
Materials & Care
Materials & Care
Responsible Materials
Each design is made using 100% certified recycled gold and silver, chosen for their beauty and lower environmental impact. Hallmarked for authenticity and designed to endure.
Simple Care For Longevity
To maintain your piece’s luster, avoid exposure to harsh chemicals and store it in a soft pouch when not in use. Clean gently with a microfiber cloth and mild soap as needed
Shipping & Returns
Shipping & Returns
Delivered With Care
Every piece is made to order and arrives in 12 to 14 business days. Shipping is free and fully insured within the US, and we also ship to many other countries, with options shown at checkout. Each piece is carefully packaged, and you will get a tracking number as soon as it ships.
Easy Returns and Exchanges
If your piece isn’t quite right, we accept returns and exchanges within 30 days of delivery. Items must be unworn and in original packaging. Begin your return online for a seamless process.
What Happens After You Order
What Happens After You Order
1. Order confirmation. You get an email with your order details right away.
2. Crafting. Your piece is made to order and checked at our New York office.
3. Shipping. It arrives in 12 to 14 business days, insured, and you get a tracking number as soon as it ships.
4. Questions any time. If you need to change something, contact us as soon as possible and we will help.
Virtual Appointment
Visit us in person or connect with us virtually for a one-on-one consultation with a jewelry expert.
Monday–Friday: 10am–6pm ET Set A Meeting
Size Chart
| US | UK / Australian Size | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| 3 | F | 14.1 | 44.2 |
| 3.5 | G | 14.5 | 45.5 |
| 4 | H½ | 14.9 | 46.8 |
| 4.5 | I½ | 15.3 | 48.0 |
| 5 | J½ | 15.7 | 49.3 |
| 5.5 | K½ | 16.1 | 50.6 |
| 6 | L½ | 16.5 | 51.9 |
| 6.5 | M½ | 16.9 | 53.1 |
| 7 | N½ | 17.3 | 54.4 |
| 7.5 | O½ | 17.7 | 55.7 |
| 8 | P½ | 18.1 | 57.0 |
| 8.5 | Q½ | 18.5 | 58.3 |
| 9 | R½ | 19.0 | 59.5 |
| 9.5 | S½ | 19.4 | 60.8 |
| 10 | T½ | 19.8 | 62.1 |
| 10.5 | U½ | 20.2 | 63.4 |
| 11 | V½ | 20.6 | 64.6 |
| 11.5 | W½ | 21.0 | 65.9 |
| 12 | X½ | 21.4 | 67.2 |
| 12.5 | Z | 21.8 | 68.5 |
| 13 | Z+1 | 22.2 | 69.7 |
| KA Size | Wrist Diameter (in) | Wrist Diameter (cm) |
|---|---|---|
| Extra Small | 4.76 – 5.25 | 12.1 – 13.3 |
| Small | 5.26 – 5.75 | 13.4 – 14.6 |
| Medium | 5.76 – 6.25 | 14.6 – 15.9 |
| Large | 6.26 – 6.75 | 15.9 – 17.1 |
| Extra Large | 6.76 – 7.25 | 17.2 – 18.4 |
| Extra Extra Large | 7.26 – 7.75 | 18.4 – 19.7 |
| Extra Extra Extra Large | 7.76 – 8.25 | 19.7 – 21.0 |
| Length (in) | Length (cm) |
|---|---|
| 16 | 40.50 |
| 18 | 45.75 |
| 20 | 50.75 |
| 24 | 61.00 |
| 30 | 76.25 |
| 36 | 91.50 |
Size Chart
| US | UK / Australian Size | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| 3 | F | 14.1 | 44.2 |
| 3.5 | G | 14.5 | 45.5 |
| 4 | H½ | 14.9 | 46.8 |
| 4.5 | I½ | 15.3 | 48.0 |
| 5 | J½ | 15.7 | 49.3 |
| 5.5 | K½ | 16.1 | 50.6 |
| 6 | L½ | 16.5 | 51.9 |
| 6.5 | M½ | 16.9 | 53.1 |
| 7 | N½ | 17.3 | 54.4 |
| 7.5 | O½ | 17.7 | 55.7 |
| 8 | P½ | 18.1 | 57.0 |
| 8.5 | Q½ | 18.5 | 58.3 |
| 9 | R½ | 19.0 | 59.5 |
| 9.5 | S½ | 19.4 | 60.8 |
| 10 | T½ | 19.8 | 62.1 |
| 10.5 | U½ | 20.2 | 63.4 |
| 11 | V½ | 20.6 | 64.6 |
| 11.5 | W½ | 21.0 | 65.9 |
| 12 | X½ | 21.4 | 67.2 |
| 12.5 | Z | 21.8 | 68.5 |
| 13 | Z+1 | 22.2 | 69.7 |
| KA Size | Wrist Diameter (in) | Wrist Diameter (cm) |
|---|---|---|
| Extra Small | 4.76 – 5.25 | 12.1 – 13.3 |
| Small | 5.26 – 5.75 | 13.4 – 14.6 |
| Medium | 5.76 – 6.25 | 14.6 – 15.9 |
| Large | 6.26 – 6.75 | 15.9 – 17.1 |
| Extra Large | 6.76 – 7.25 | 17.2 – 18.4 |
| Extra Extra Large | 7.26 – 7.75 | 18.4 – 19.7 |
| Extra Extra Extra Large | 7.76 – 8.25 | 19.7 – 21.0 |
| Length (in) | Length (cm) |
|---|---|
| 16 | 40.50 |
| 18 | 45.75 |
| 20 | 50.75 |
| 24 | 61.00 |
| 30 | 76.25 |
| 36 | 91.50 |
Size Chart
| US | UK / Australian Size | Inside Diameter (mm) | Circumference (mm) |
|---|---|---|---|
| 3 | F | 14.1 | 44.2 |
| 3.5 | G | 14.5 | 45.5 |
| 4 | H½ | 14.9 | 46.8 |
| 4.5 | I½ | 15.3 | 48.0 |
| 5 | J½ | 15.7 | 49.3 |
| 5.5 | K½ | 16.1 | 50.6 |
| 6 | L½ | 16.5 | 51.9 |
| 6.5 | M½ | 16.9 | 53.1 |
| 7 | N½ | 17.3 | 54.4 |
| 7.5 | O½ | 17.7 | 55.7 |
| 8 | P½ | 18.1 | 57.0 |
| 8.5 | Q½ | 18.5 | 58.3 |
| 9 | R½ | 19.0 | 59.5 |
| 9.5 | S½ | 19.4 | 60.8 |
| 10 | T½ | 19.8 | 62.1 |
| 10.5 | U½ | 20.2 | 63.4 |
| 11 | V½ | 20.6 | 64.6 |
| 11.5 | W½ | 21.0 | 65.9 |
| 12 | X½ | 21.4 | 67.2 |
| 12.5 | Z | 21.8 | 68.5 |
| 13 | Z+1 | 22.2 | 69.7 |
| KA Size | Wrist Diameter (in) | Wrist Diameter (cm) |
|---|---|---|
| Extra Small | 4.76 – 5.25 | 12.1 – 13.3 |
| Small | 5.26 – 5.75 | 13.4 – 14.6 |
| Medium | 5.76 – 6.25 | 14.6 – 15.9 |
| Large | 6.26 – 6.75 | 15.9 – 17.1 |
| Extra Large | 6.76 – 7.25 | 17.2 – 18.4 |
| Extra Extra Large | 7.26 – 7.75 | 18.4 – 19.7 |
| Extra Extra Extra Large | 7.76 – 8.25 | 19.7 – 21.0 |
| Length (in) | Length (cm) |
|---|---|
| 16 | 40.50 |
| 18 | 45.75 |
| 20 | 50.75 |
| 24 | 61.00 |
| 30 | 76.25 |
| 36 | 91.50 |
The Lab-Grown Advantage
Identical & Certified
Chemically and optically identical to mined diamonds, independently certified by the IGI.
Great Value
Usually priced well below a mined diamond of the same size and quality, so your budget goes further.
Responsibly Made
Grown in a lab, so no mining is involved.
Learn About Your Jewelry
We're committed to making your entire experience a pleasant one, from shopping to shipping.
Every item we send comes in our signature Milagros Jewel packaging. Engagement rings arrive in a deluxe ring box within an elegant presentation box ready for your proposal. The presentation box also secures your appraisal certificate and diamond grading report.
We do create custom pieces. Our designers work with you to bring your vision to life, ensuring every detail reflects your personal style.
Our shipping box won't give away what's inside.
Shipping is free and insured within the US. Other countries see their shipping options at checkout.
