Oval Cut Lab Grown Diamond Engagement Ring
Oval engagement rings, set with GIA-certified lab-grown diamonds in 18K solid gold. Anyone who wants the sparkle of a round but a more modern, elongated look on the finger.
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A oval engagement ring is the right choice when anyone who wants the sparkle of a round but a more modern, elongated look on the finger. The shape sets the entire visual character of the ring, and the oval is one of the most distinctive choices you can make.
An oval diamond has the brilliance of a round, in an elongated shape. The elongation makes the stone look 5–10% larger than a round of the same carat weight, and it visually slims the finger.
Best settings for a oval centre stone
Four-prong or six-prong with prongs at the north–south–east–west positions works best for an oval. A solitaire lets the oval do everything; a halo adds a frame of smaller diamonds and makes the centre look 25–30% larger; a three stone setting flanks the centre with two accent diamonds.
What to expect on the finger
A 1 ct oval is about 7.7 × 5.7mm. Most Riyanika customers choose between 1 ct and 2 ct for a oval centre. Lab-grown diamonds give you the same brilliance as a mined diamond at roughly 40–60% of the price, which means you can comfortably size up the centre stone.
Lab-Grown Diamond centre stones
Every centre stone above 0.30 ct is GIA-certified and laser-inscribed with its grading report number. Every ring is built in 18K solid gold (yellow, white or rose), hand-finished and hallmarked in our workshop. For the full lab-grown diamond engagement ring range across all shapes, see our main lab-grown diamond engagement ring collection.
What comes with the ring
The original GIA grading report, a formal appraisal for insurance, one free resize within 60 days, and lifetime cleaning and prong checks. Every ring ships in a signature Riyanika box.
Bespoke
Not seeing the exact combination you want? Every Riyanika engagement ring can be made bespoke at no extra cost. Start your design here and we will send a CAD render for your approval before any gold is cut.
Frequently Asked Questions
How big does a 1 ct oval diamond look?
A 1 ct oval is about 7.7 × 5.7mm. On an average size 6 finger this reads as a confident, well-proportioned centre stone.
Is a oval diamond more expensive than a round?
Round brilliants typically cost 15–25% more than fancy shapes (oval, emerald, pear, cushion, etc.) at the same carat weight and grade. The premium reflects how much rough diamond is wasted to cut a round vs a fancy shape.
What setting works best with a oval cut?
Four-prong or six-prong with prongs at the north–south–east–west positions works best for an oval. A solitaire is the most popular for letting the shape speak for itself; a halo is the most popular for making the centre look larger.
Are lab-grown diamond oval diamonds GIA-certified?
Every centre stone above 0.30 ct is GIA-certified and laser-inscribed with its grading report number.
Can I customise this ring?
Yes. Every Riyanika engagement ring can be made bespoke at no extra cost on most designs. We will send a CAD render before any gold is cut.
How do I care for a oval engagement ring?
Clean at home once a month with warm water, mild washing-up liquid, and a soft toothbrush. Bring the ring in once a year for a professional clean and prong check (free for life at Riyanika). Take the ring off for the gym, swimming, and gardening.