5 Carat Diamond Ring 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
5 Carat Round Brilliant Engagement Ring – Raphana Natural Diamond Collection
I1 • I Colour • Excellent Make — 5ct
Natural diamond I1 I, Very Good cut, HRD-certified in classic solitaire
- Carat: 5ct
- Clarity: I1 (hand-selected for best face-up)
- Colour: I (near-colourless)
- Certificate: HRD Antwerp
- Ready to Ship: ~1 weeks delivery
- Valuation $148,900
SI2 • E Colour • Excellent Make — 5.00ct
Lab-grown diamond E SI2, Excellent cut, IGI-certified shown in solitaire setting
- Carat: 5.00ct
- Clarity: VVS2 (exceptional purity)
- Colour: F (colourless)
- Certificate: IGI
- Lead time: ~3–4 weeks, made-to-order
Experience the pinnacle of elegance with our 5 carat round brilliant engagement ring, meticulously crafted to symbolise your most meaningful moments. Exclusively featuring a natural, HRD-certified diamond, this breathtaking piece is set in your choice of platinum or 18K gold and handcrafted in Auckland, New Zealand.
The round brilliant cut is renowned for its unmatched sparkle and timeless appeal, and at 5 carats, this ring makes a powerful statement of love and prestige. Perfect for those who demand luxury, rarity, and refinement.
Features:
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5.00ct Natural Earth-Mined Diamond
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Cut: Round Brilliant | HRD-Certified
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Colour: I | Clarity: I1 (Customisable)
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Setting: Platinum or 18K Yellow, White or Rose Gold
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Band: Classic, hidden halo, or pavé styles available
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Made-to-order in Auckland | Crafting time: 4–6 weeks
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!
