1.5 Carat Oval Trilogy 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 Trilogy Engagement Ring
VVS2 • D Colour • Excellent Make — 1.50ct
Lab-grown diamond D VVS2, Excellent cut, IGI-certified shown in trilogy setting
- Center Carat: 1.50ct
- Clarity: VVS2 (exceptional purity)
- Colour: E (colourless)
- Certificate: IGI
- Side Diamonds: 2X Round Brilliant
- Metal: 18K Gold or Platinum
- Width: 2mm
- Lead time: ~3–4 weeks, made-to-order
1.5 Carat Oval Trilogy Lab Grown Diamond Engagement Ring
The 1.5 Carat Oval Trilogy Lab Grown Diamond Engagement Ring by Raphana Jewellery is a timeless symbol of love, designed to represent the past, present, and future. Featuring a beautifully cut oval centre diamond with two perfectly matched side stones, this trilogy design offers elegance, meaning, and brilliance.
At its centre is a stunning 1.5 carat oval lab grown diamond, chosen for its exceptional sparkle and elongated shape. The oval cut enhances the appearance of finger length while delivering a refined and modern look.
The trilogy setting adds balance and depth, with side stones that enhance the brilliance of the centre diamond. Crafted in platinum, 18K white gold, yellow gold, or rose gold, this ring offers a sophisticated finish designed for everyday luxury.
What is a Trilogy Engagement Ring?
A trilogy engagement ring features three diamonds, symbolising a couple’s journey together — the past, present, and future. This meaningful design is both romantic and timeless, making it one of the most popular engagement ring styles.
- Symbolises past, present, and future
- Balanced and elegant design
- Enhances centre diamond brilliance
- Timeless and meaningful style
The Beauty of Oval Cut Diamonds
Oval diamonds are admired for their elongated silhouette and brilliant faceting. A 1.5 carat oval engagement ring offers the perfect balance of size and elegance, making it ideal for everyday wear.
- Elongated shape enhances finger appearance
- Brilliant sparkle similar to round diamonds
- Elegant and modern design
- Maximises visual size
Lab Grown Diamonds – Modern Luxury
Lab grown diamonds offer the same physical and optical properties as natural diamonds, delivering exceptional brilliance and durability. They provide a modern approach to fine jewellery, especially for those seeking value in larger carat sizes.
Each diamond is certified by IGI or GIA, ensuring premium quality and authenticity.
- Identical to natural diamonds
- Ethically produced
- Greater value for carat size
- Certified for quality assurance
Ring Specifications
- Centre Stone: Oval Lab Grown Diamond
- Total Carat Weight: 1.5 Carats
- Side Stones: Two matching diamonds
- 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: Trilogy / Three Stone
Crafted by Raphana Jewellery
At Raphana Jewellery, each engagement ring is crafted with precision and attention to detail. Combining expert craftsmanship with a luxury finish, every piece is designed to last a lifetime.
This ring is made to order and can be customised to your preferences, allowing you to create a truly personal piece.
Custom Engagement Rings
Looking to personalise your ring? Our team can customise this oval trilogy engagement ring to match your exact vision, from diamond size to side stone proportions.
Contact us or book a consultation to begin your bespoke design journey.
Frequently Asked Questions
What is the difference between trilogy and three stone?
They are the same style — “trilogy” is commonly used in the UK and New Zealand, while “three stone” is more common internationally.
Is 1.5 carat a good size for an engagement ring?
Yes, a 1.5 carat diamond offers a beautiful balance of size, elegance, and practicality, making it ideal for everyday wear.
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!
