Oval Cut Lab Grown Diamond Side-Stone Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 13

$519.00

Price updates with your selections

Independently graded by IGI IGI Report Included Selected 0.50 ct+ lab-grown center or primary diamond · IGI grading report · Signora Jewelry Certificate included. 1 ct lab-grown diamond · IGI report · Signora Certificate included.

Understand your certificates →Certificate details →

Metal:

Center Diamond:

Choose your fit

Ring size Choose one

Forever, A & J

Live preview

Engraving 0 / 20

Complimentary · hand-engraved to order · adds about 3–4 days.

Estimated dispatch: 7 business days Duties & taxes prepaid

Ring size guide

Lay a ring you own flat on the circle and slide until it sits just inside it — or set its inner diameter directly.

Measure the inside of a ring that already fits — inner edge to edge — with a ruler in mm, then set it below. No ring handy? Try Measure your finger.

14 mm 24 mm 17.3 mm

Inner diameter mm

US size

UK size

EU size

Circumference

54.3 mm

Between sizes? Always choose the larger size. Fingers are slightly bigger in the evening — measure then for the best fit.

Method 1 — Use an existing ring

Find a ring that fits the intended finger comfortably.
Place it flat and measure the inner diameter (inside edge to inside edge) in mm.
Enter that measurement in the Measure a ring tab.

Method 2 — Wrap and measure

Wrap a thin strip of paper around the base of your finger.
Mark where it overlaps — measure that length in mm (your circumference).
Divide by 3.1416 (π) to get your diameter, then use the Measure a ring tab.

Tip: Middle finger sizes typically run half a size larger than the ring finger. If between sizes, go up. Measure in the evening — fingers are slightly larger then.

7US size

US	UK	EU	Diameter	Circumference

Highlighted row = your converted size. Most common women's sizes are US 6–7. All measurements in mm.

Selected: —

The Signora Promise

Hand-finished in SuratMade to order

Reports where statedExact scope shown

Insured deliverySigned & tracked

Secure checkoutShopify checkout

Standard-design returns30-day eligibility

Final inspectionChecked before dispatch

About This Ring

Oval Cut · Eternity

Center

Oval Cut

Carat

Customizable

Metal

Customizable

Setting

Eternity

An independent IGI grading report is included when the selected individual lab-grown center or primary diamond is 0.50 ct or larger.

Detail	In the photos	Customizable
Center diamond	Oval · 11.00 × 7.50 mm · approx. 2.56 ct	1–4.5 ct
Side diamonds	13 marquise diamonds · approx. 0.77 ct	Scales with center
Total diamond weight	approx. 3.33 ct · 14 stones	Varies with center size
Stone type	Lab Grown Diamond	—
Setting	Four-prong basket with shared-prong marquise side stones	—
Finish · Occasion	High Polish · Engagement, Anniversary, Bridal	—

Diamond details

Shape	Size	Qty	Weight (approx.)
Oval	11.00 × 7.50 mm	1	2.56 ct
Marquise	4.25 × 2.00 mm	13	0.77 ct total
Total	—	14	3.33 ct

At a glance

An oval lab grown diamond side-stone engagement ring from Signora Jewels.

An 11.00 × 7.50 mm oval center of approx. 2.56 ct sits in a four-prong basket above 13 marquise diamonds totaling approx. 0.77 ct. Approx. 3.33 ct total.

Made to order in 11 metals: silver, 9K/14K/18K gold (yellow, white, rose) and platinum.

Each metal color is shown in the photos. Choose your center weight and metal from the options on this page.

Signora Jewels sets the 11.00 × 7.50 mm oval high enough for light to enter beneath it, but the four-prong basket keeps the outline open from above. The oval reads long across the finger without covering the marquise stones beside it.

Thirteen marquise diamonds run around the band in a point-to-point rhythm. Shared prongs leave their tapered ends visible, so the side profile stays airy instead of turning into a solid row of metal.

Design highlights

Oval center shown at approx. 2.56 ct
Customizable center from 1–4.5 ct
Four-prong basket keeps the oval outline exposed
13 marquise side diamonds totaling approx. 0.77 ct
Shared-prong side setting creates an uninterrupted diamond line
Made to order in 11 metal and color combinations

The marquise band is what changes this ring from a standard oval solitaire. Each side stone points toward the next, drawing the eye around the finger while keeping the center clearly dominant. Explore more engagement rings, compare settings in the engagement ring guide, or review the available finishes in the metal guide.

Diamond & Ring Details

Specification	Details
Center stone	Oval · 11.00 × 7.50 mm · approx. 2.56 ct
Side stones	13 marquise diamonds · 4.25 × 2.00 mm · approx. 0.77 ct total
Total weight / count	approx. 3.33 ct · 14 stones
Setting	Four-prong basket with shared-prong marquise side stones
Center options	1, 1.5, 2, 2.56, 3, 3.5, 4 and 4.5 ct
Finish	High Polish

Measurements are approximate; your chosen center size sets the final diamond and metal weight.

About Lab Grown Diamonds

The elongated oval gives you broad face-up coverage, while its curved ends avoid the exposed points found on sharper cuts. F color and VS1 clarity keep the center bright, and the marquise accents add flashes along the band rather than forming a uniform pavé texture.

Metal, Care & Fit

White gold and platinum blend closely with the prongs, while yellow or rose gold creates a visible frame beneath the diamonds. Clean beneath the oval basket with warm water, mild soap and a soft brush. Check the shared prongs periodically because every marquise stone is held at narrow contact points.

FAQ

How does the oval center sit on this ring?
The oval sits in an open four-prong basket above the marquise band. This gives the 11.00 × 7.50 mm outline clear separation from the side stones and lets light reach the pavilion.

Do the marquise side stones compete with the center?
The 13 marquise stones total approx. 0.77 ct, so the 2.56 ct photographed center remains dominant. Their pointed layout draws attention inward toward the oval.

Which metal gives this design the most continuous diamond look?
White gold or platinum makes the shared prongs recede against the diamonds. Yellow and rose gold create more contrast between the marquise stones.

How should I care for the shared-prong marquise band?
Brush gently between the marquise stones and beneath the oval basket to remove lotion buildup. Avoid pressing the band against hard surfaces because the narrow marquise tips depend on small shared-prong contact points.

Your cart is empty