1.5 carat oval natural diamond engagement ring with marquise side stones in yellow gold
Heptalogy Oval Diamond Engagement Ring - Raphana Jewellery
Heptalogy Oval Diamond Engagement Ring - Raphana Jewellery
1.5 Carat Oval Natural Diamond Engagement Ring with Marquise Side Stones
Heptalogy Oval Diamond Engagement Ring - Raphana Jewellery
1.5 carat oval natural diamond engagement ring with marquise side stones in platinum
Heptalogy Oval Diamond Engagement Ring - Raphana Jewellery
Heptalogy Oval Diamond Engagement Ring - Raphana Jewellery

1.5 Carat Oval Natural Diamond Engagement Ring with Marquise Side Stones

Regular price$13,995.00
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Metal
Gemstone Type
Size chart

Measure at home with confidence — printable sizer or your existing ring.

How to measure

Option 1

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.

Option 2

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.

Print check: Place a credit card on the guide — the reference should match 85.6mm width.

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.
Need help? Message us — we’ll confirm the best size for your design.

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
Note: Fit can vary slightly depending on band width and design.

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

Oval Natural Diamond Engagement Ring

Natura earth Diamond • GIA

SI1 • D Colour • Excellent Make — 1.50ct

Natural diamond D SI1, Excellent cut, GIA-certified shown in solitaire setting

GIA Certified Colourless (D) Excellent Cut 1–5ct Options
  • Center Carat: 1.50ct
  • Clarity: SI1 (exceptional purity)
  • Colour: D (colourless)
  • Certificate: GIA
  • Band Width: 2.3mm to 2.4mm
  • Metal: 18K Gold or Platinum
  • Lead time: ~3–4 weeks, made-to-order

1.5 Carat Oval Natural Diamond Engagement Ring with Marquise Side Stones

The 1.5 Carat Oval Natural Diamond Engagement Ring with Marquise Side Stones by Raphana Jewellery is a refined and distinctive design that combines elegance with intricate detail. Featuring a beautifully proportioned oval centre diamond framed by marquise-shaped side stones, this ring offers a graceful and luxurious aesthetic.

At its centre is a stunning 1.5 carat oval natural diamond, selected for its brilliance, fire, and elongated silhouette. The oval cut enhances the appearance of the finger while delivering a soft yet striking presence.

Six marquise-shaped diamonds — three on each side — are carefully set along the band, creating a flowing and balanced design. These side stones enhance the centre diamond while adding movement, sparkle, and a unique character. Crafted in platinum, 18K white gold, yellow gold, or rose gold, this ring embodies refined luxury and timeless beauty.

The Beauty of Natural Diamonds

Natural diamonds are formed over billions of years, making each stone a rare creation of nature. Their timeless appeal and rarity make them a meaningful choice for engagement rings.

  • Formed naturally over billions of years
  • Exceptional brilliance and durability
  • Symbol of rarity and enduring value
  • Each diamond is unique

Oval Cut – Elegant and Elongating

Oval diamonds are admired for their elongated shape and brilliant faceting. A 1.5 carat oval engagement ring offers a perfect balance between size and elegance, ideal for everyday wear.

  • Elongates and flatters the finger
  • Brilliant sparkle similar to round diamonds
  • Elegant and timeless silhouette
  • Maximises perceived size

Marquise Side Stones – Refined Detail

The marquise side stones introduce a distinctive and elegant element to the design. Their elongated shape complements the oval centre diamond, creating a cohesive and flowing aesthetic.

  • Six marquise diamonds (three on each side)
  • Enhances centre diamond brilliance
  • Adds movement and visual interest
  • Elegant and unique design feature

Ring Specifications

  • Centre Stone: Oval Natural Diamond
  • Total Carat Weight: 1.5 Carats (centre)
  • Side Stones: 6 Marquise Diamonds (3 each side)
  • Diamond Colour: D
  • Diamond Clarity: SI1
  • Certification: GIA
  • Metal Options: Platinum, 18K White Gold, 18K Yellow Gold, 18K Rose Gold
  • Setting Style: Side Stone (Marquise Accents)

Crafted by Raphana Jewellery

Each engagement ring by Raphana Jewellery is crafted with precision and attention to detail, combining traditional craftsmanship with a refined luxury finish. Designed to last a lifetime, every piece reflects exceptional quality.

Made to order, this ring can be customised to your preferences, ensuring a truly personal creation.

Custom Engagement Rings

Looking to personalise your ring? Our team can customise this oval engagement ring with marquise side stones to your exact vision, from diamond proportions to setting style.

Contact us or book a consultation to begin your bespoke design journey.

Frequently Asked Questions

What makes marquise side stones special?
Marquise diamonds add a unique and elegant detail, enhancing the centre stone while creating a flowing and sophisticated design.

Is 1.5 carat a good size for an engagement ring?
Yes, a 1.5 carat diamond offers a beautiful balance of size and elegance, making it one of the most popular choices.

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!

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