Round Heart-Tip Plain Bypass Solitaire Lab Grown Diamond Engagement Ring 1.20ctw
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 Heart-Tip Plain Bypass Solitaire Lab Grown Diamond Engagement Ring pairs the timeless brilliance of a 1.20ctw round lab grown center diamond with a setting that speaks softly but with great intention. Four heart-tipped claw prongs cradle the stone at each cardinal point, their delicate heart silhouettes a quiet declaration of love that reveals itself only upon close inspection. The clean, open basket gallery beneath needs no ornament — it simply lets light flood through, maximising the lab grown diamond's natural fire.
The plain bypass tapered shank is where understated elegance takes its final bow. One polished rail gently curves up and over the other as it rises to meet the base of the setting, the smooth crossover creating a flowing, organic silhouette that frames the lab grown diamond without competing with it. The taper of the shank — narrowing gracefully from shoulder to finger — ensures a comfortable, feminine fit that wears beautifully every single day.
Available in 10K/14K/18K White, Yellow, or Rose Gold and Platinum.
Ring Details
Item No. - R-DOC-141
Total Carat Weight - 1.20
Approx Gold Weight - 3.15g - 6.11g (Varies by metal type)
Setting Type - 4-Prong Heart-Tip Claw, Clean Open Basket Gallery
Center Diamond Details
Stone Type - Lab Grown Diamond
Carat Weight - 1.20
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
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