Round Starburst Cushion Halo Lab Grown Diamond Engagement Ring 1.48ctw
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 Round Starburst Cushion Halo Lab Grown Diamond Engagement Ring transforms a brilliant 1.00ctw round lab grown center diamond into the centrepiece of a dazzling starburst display. Twelve generously sized round lab grown diamonds, each held in its own individual bead-prong setting, encircle the center stone in a cushion-shaped halo that radiates outward like rays of light. Unlike densely packed pavé halos, the deliberate spacing between each halo lab grown diamond creates a distinct starburst silhouette — bold, airy, and unforgettable from every angle.
From the side, the halo rises like a crown above the split-rail shank, which divides into two smooth, open rails that frame an elegant gap as they rise to meet the base of the setting. This open split shank keeps the look light and refined despite the significant presence of the halo above, balancing glamour with grace in a way that few engagement ring designs achieve. A ring designed to be seen, to be remembered, and to be cherished for a lifetime.
Available in 10K/14K/18K White, Yellow, or Rose Gold and Platinum.
Ring Details
Item No. - R-DOC-148
Total Carat Weight - 1.48
Approx Gold Weight - 3.51g - 6.81g (Varies by metal type)
Setting Type - Single Starburst Cushion Halo — Individually Pronged Large Round Diamonds
Center Diamond Details
Stone Type - Lab Grown Diamond
Carat Weight - 1.00
Shape - Round
Color - E-F
Clarity - VS1-VS2
Side Diamond Details
Stone Type - Lab Grown Diamond
Total Carat Weight - 0.48
Shape - Round lab grown diamonds — approx. 12 individually bead-prong set in starburst cushion halo
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
