3 Carat Round Solitaire Engagement Ring 18K Gold & Platinum
Measure at home with confidence — printable sizer or your existing ring.
How to measure
Use an existing ring
Match the inside of your ring to the closest circle on the printable guide. The circle should sit inside the ring with minimal white showing.
Use the finger sizer strip
Print at 100% scale on US Letter. Cut out the strip, cut the slit, wrap it around your finger with numbers visible, and read the number closest to the opening. Slide it over your knuckle and choose a size that feels comfortable.
Quick fit tips
- Measure at the end of the day (fingers are slightly larger).
- Avoid measuring when hands are cold.
- If you’re between sizes, go up for comfort.
- Wide bands can feel tighter — consider +0.5 size.
Ring Size Chart (AU/UK)
Measurements shown in diameter and circumference.
| AU/UK Size | Diameter (mm) | Circumference (mm) |
|---|---|---|
| H 1/2 | 15.0 | 47.1 |
| J 1/2 | 15.8 | 49.6 |
| L 1/2 | 16.5 | 51.8 |
| N 1/2 | 17.2 | 54.0 |
| O 1/2 | 17.9 | 56.2 |
| Q 1/2 | 18.5 | 58.1 |
| R 1/2 | 19.1 | 60.0 |
| T 1/2 | 19.8 | 62.2 |
| U 1/2 | 20.3 | 63.8 |
| W 1/2 | 21.0 | 66.0 |
| X | 21.6 | 67.9 |
| Z | 22.3 | 70.1 |
FAQ
What if I’m buying a surprise gift?
If you can borrow one of their rings, measure the inside diameter. If unsure, pick a common size and we can guide resizing later.
Should I size up for thicker bands?
Often yes — thicker bands feel tighter. If you’re near the top end of a size, go up by 0.5.
Can you help me confirm my size?
Yes — send us your measurement (mm) or a photo of the printed sizer on your finger and we’ll confirm.
- Free Resizing
- Lifetime Warranty
- Free Ring Customisation*
- Free Insured Shipping on all orders
3 Carat Solitaire Engagement Ring 18K Gold & Platinum
Celebrate your love with the enduring sparkle of Raphana’s Round Cut Natural Round Solitaire Brilliant Diamond Engagement Ring Setting, handcrafted in New Zealand using only the finest 18K yellow, rose, white gold or platinum.
Setting Features:
-
Center Diamond: 3 ct natural earth mined round diamond
-
Colour: I
-
Clarity: SI2
-
Cut: Excellent
-
Certification: IGI
-
Metal Options: 18K Solid Gold or Platinum
-
Setting: Four-prong on a sleek comfort-fit band
-
Finish: High-polish for maximum brilliance
3 Carat Solitaire Engagement Ring
Elevate your love story with Raphana Jewellery’s 3 Carat Solitaire Engagement Ring—a masterful union of artistry and quality. Centered on a breathtaking, IGI-certified 3.00 ct round brilliant diamond, this classic solitaire is available in your choice of solid 18K white gold, yellow gold, rose gold, or platinum. Each ring is handcrafted by our artisans, ensuring:
-
Ethical Sourcing: Natural earth-mined diamonds selected for exceptional cut, colour, and clarity.
-
Precision Setting: Four-prong or six-prong cathedral mount that maximises sparkle and security.
-
Premium Metals: Solid 18K gold or platinum with a flawless, high-polish finish.
-
Comfort Fit: Smooth, rounded inner band for effortless daily wear.
-
Custom Sizing: Tailored to your exact ring size, with optional engraving for a personal touch.
Whether you choose the warm glow of yellow gold or the sleek sheen of platinum, this ring captures everlasting elegance—designed to be treasured for generations.
Order this piece online today! Crafted with care, it takes 6 weeks to create. Need it sooner or want a personal touch? Contact us—we’re happy to make it perfect for you!
