Classic Six-Prong Round Solitaire Lab Grown Diamond Engagement Ring 2.00ctw
All Runivi rings are sized in US sizing. Sizes highlighted are the most commonly ordered (US 6–7½).
| US Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| 4 | 14.9 | 46.8 |
| 4½ | 15.3 | 48.0 |
| 5 | 15.7 | 49.3 |
| 5½ | 16.1 | 50.6 |
| 6 | 16.5 | 51.9 |
| 6½ | 16.9 | 53.1 |
| 7 | 17.3 | 54.4 |
| 7½ | 17.7 | 55.7 |
| 8 | 18.1 | 57.0 |
| 8½ | 18.5 | 58.3 |
| 9 | 18.9 | 59.5 |
| 9½ | 19.4 | 60.8 |
| 10 | 19.8 | 62.1 |
| 10½ | 20.2 | 63.4 |
| 11 | 20.6 | 64.7 |
| 11½ | 21.0 | 66.0 |
| 12 | 21.4 | 67.2 |
| 13 | 22.2 | 69.8 |
✔ Most commonly ordered: US 6, 6½, 7, 7½
Quick Tips
- Measure at the end of the day, when fingers are largest.
- Snug, not tight — the ring should pass your knuckle with slight resistance.
- Wider bands (4mm+) fit tighter — consider sizing up half a size.
- Between two sizes? Always size up.
- In stock, ready to ship
Our Classic Six-Prong Round Solitaire Lab Grown Diamond Engagement Ring puts a 2.00ctw round lab grown diamond in the most beloved engagement ring design of the past century. Six evenly spaced round bead prongs cradle the diamond in the classic tulip cathedral setting, each angled inward for maximum grip and minimum visible metal.
The open gallery beneath allows light to enter from every angle, flooding the lab grown diamond's pavilion. The plain tapered comfort-fit shank is entirely without ornament — no halo, no pavé, no milgrain. Just the stone, the six prongs, and the promise they represent.
Available in 10K/14K/18K White, Yellow, or Rose Gold and Platinum.
Ring Details
Item No. - R-DOC-174
Total Carat Weight - 2.00
Approx Gold Weight - 3.74g - 7.26g (Varies by metal type)
Setting Type - 6-Prong Round Bead, Open Tulip Cathedral Gallery
Center Diamond Details
Stone Type - Lab Grown Diamond
Carat Weight - 2.00
Shape - Round
Color - E-F
Clarity - VS1-VS2
Your Order Includes
* Free Shipping
* Delivered in Discreet Packaging
* Complimentary Professional Appraisal & IGI Certificate (if applicable)
* Free Lifetime Warranty
Every RUNIVI item is custom-made after your order is placed. We offer free and fully-insured shipping on all orders within US and Canada. Estimated delivery time is 10-12 business days from the date of your purchase.
If you are not 100% satisfied with your purchase, returns are accepted within 30 days of delivery. Learn more about our shipping & return policy.
Why Shop with us
Lifetime Warranty
IGI & Appraisal Certificate
Free Resizing & Shipping
Buy Now, Pay Later
