2.5 Carat Oval Unique One of a Kind Lab Grown Diamond Engagement Ring
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
Modern Oval Unique Engagement Ring
VS1 • D Colour • Excellent Make — 2.50ct
Lab-grown diamond D VS1, Excellent cut, IGI-certified shown in trilogy setting
- Center Carat: 2.50ct
- Clarity: VS1 (exceptional purity)
- Colour: D (colourless)
- Certificate: IGI
- Side Diamonds: 4X Round + 4X Marquise
- Metal: 18K Gold or Platinum
- Lead time: ~3–4 weeks, made-to-order
2.5 Carat Oval Unique One of a Kind Lab Grown Diamond Engagement Ring
The 2.5 Carat Oval Unique One of a Kind Lab Grown Diamond Engagement Ring by Raphana Jewellery is designed for those who seek something truly distinctive. Combining modern elegance with a bespoke-inspired aesthetic, this ring is crafted to stand apart from traditional designs.
At its centre is a breathtaking 2.5 carat oval lab grown diamond, selected for its exceptional brilliance and elongated silhouette. The oval cut enhances finger length while delivering a refined and sophisticated presence.
The unique design elements of this ring create a one-of-a-kind look, offering subtle individuality while maintaining a luxurious and timeless appeal. Crafted in platinum, 18K white gold, yellow gold, or rose gold, this piece is designed to reflect personal style and modern elegance.
A Unique Engagement Ring Like No Other
Unlike traditional engagement rings, this design focuses on individuality and expression. Perfect for those who want something different, this ring combines elegance with a distinctive character that sets it apart.
- One of a kind inspired design
- Modern and distinctive aesthetic
- Elegant yet unique appearance
- Designed to stand out
The Beauty of Oval Cut Diamonds
Oval diamonds are known for their brilliance and elongated shape, offering both sparkle and elegance. A 2.5 carat oval engagement ring delivers a strong visual presence while remaining refined and wearable.
- Elongated shape enhances finger appearance
- Brilliant faceting for maximum sparkle
- Elegant and modern style
- Maximises perceived size
Lab Grown Diamonds – A Modern Approach
Lab grown diamonds offer the same physical and optical properties as natural diamonds, providing exceptional brilliance and durability. They are an ideal choice for those seeking both value and beauty.
Each diamond is certified by IGI or GIA, ensuring premium quality and authenticity.
- Identical to natural diamonds
- Ethically produced
- Greater value for larger carat sizes
- Certified for quality assurance
Ring Specifications
- Centre Stone: Oval Lab Grown Diamond
- Total Carat Weight: 2.5 Carats
- Diamond Colour: D–F
- Diamond Clarity: VS or higher
- Certification: IGI / GIA
- Metal Options: Platinum, 18K White Gold, 18K Yellow Gold, 18K Rose Gold
- Setting Style: Unique / Modern Design
Crafted by Raphana Jewellery
Each engagement ring by Raphana Jewellery is crafted with precision and care, combining expert craftsmanship with a refined luxury finish. Designed to last a lifetime, every piece reflects exceptional attention to detail.
Made to order, this ring can be customised to suit your exact preferences, creating a truly personal piece.
Custom Engagement Rings
Looking for something even more personal? Our team can customise this unique oval engagement ring to your vision, from diamond specifications to design details.
Contact us or book a consultation to begin your bespoke design journey with Raphana Jewellery.
Frequently Asked Questions
What makes an engagement ring unique?
A unique engagement ring features distinctive design elements that set it apart from traditional styles, allowing for a more personal and individual expression.
Is 2.5 carat a good size for an engagement ring?
Yes, a 2.5 carat diamond offers a luxurious and noticeable presence while maintaining elegance and comfort.
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!
