Radiant Cut Lab Grown Diamond Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

Gold ring with a large diamond and smaller diamonds on the band against a white background

1 of 13

$653.00

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.

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Metal:

Center Diamond:

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Ring size Choose one

Forever, A & J

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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

Radiant Cut · Pavé

Center

Radiant Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

Pavé

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

Each metal color is shown in the photos — pick your center size and metal in the options on this page.

Detail	In the photos	Customizable
Center diamond	Radiant · 2.47 ct	Yes — 1 to 4.5 ct
Metal & color	Every color shown	Yes — 11 options
Side stones	34 diamonds · approx. 0.16 ct	Included as shown
Total diamond weight	approx. 2.63 ct	Varies with center size
Stone type	Lab Grown Diamond	Lab grown or natural

Made to order — the price updates with your selection. Want fully bespoke?
Customize your jewelry here.

A radiant lab grown diamond engagement ring brings together bold sparkle and clean geometry, and this design lets the center stone take the spotlight. The elongated radiant cut is lifted in a classic four-prong setting that allows light to enter from every angle.

Along the shoulders, pavé-set diamonds add a ribbon of brilliance that draws the eye toward the center stone without overwhelming it. The slim band keeps the profile elegant while giving the ring a bright, refined presence on the hand.

Made to order in your chosen metal and center size, this ring is crafted around your preferences. Whether you prefer a subtle one-carat look or a statement center, the proportions are adjusted to keep the design balanced and comfortable for everyday wear.

Design highlights

Radiant cut lab grown diamond center
Four-prong solitaire setting
Pavé-set diamond shoulders
Clean cathedral-style profile
Slim, elegant high-polish band
34 accent diamonds included as shown
Available in 11 metal and color options
Center diamond customizable from 1–4.5 ct

The radiant cut combines the outline of an emerald shape with brilliant-cut faceting, creating lively sparkle while maintaining a sophisticated rectangular silhouette.

Diamond Details

Specification	Details
Center Stone Shape	Radiant Cut
Center Stone Size	8.50 × 6.50 mm
Center Stone Weight (as shown)	Approx. 2.47 CT
Accent Diamonds	34 round diamonds · approx. 0.16 CT
Total Diamond Weight	Approx. 2.63 CT
Total Diamond Count	35
Stone Type	Lab Grown Diamond
Setting	Four-Prong Pavé Solitaire

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

Ring Specifications

Feature	Details
Ring Style	Pavé Solitaire
Metal Options	Silver, 9K, 14K, 18K Gold, Platinum
Available Colors	Yellow, White, Rose Gold, Silver, Platinum
Setting Type	Four-Prong Pavé Setting
Finish	High Polish
Occasion	Engagement, Anniversary, Bridal

About Lab Grown Diamonds

A radiant marries an emerald's trimmed-corner outline with brilliant faceting, so it throws lively sparkle while keeping a bold rectangular footprint. The cropped corners are structurally tough and seat securely in prong or halo settings.

Every Signora Jewels diamond is grown in a controlled lab, producing a stone that is chemically, optically, and physically identical to a mined diamond — same hardness, same fire, graded on the same 4C scale. Because the supply chain is short and traceable, you get a larger, cleaner stone for the same budget and a documented origin, with no mining footprint.

FAQ

Can I change the center stone size?
Yes. Center sizes from 1 CT to 4.5 CT are available, and the setting is scaled to suit the stone you choose.

Are lab grown diamonds real diamonds?
Yes. They are chemically, physically, and optically identical to mined diamonds and are graded on the same 4C scale.

Will a radiant cut sparkle as much as other shapes?
Yes. Radiant diamonds use brilliant faceting designed to maximize sparkle while maintaining a rectangular outline.

Which metals can I choose?
Silver, 9K / 14K / 18K gold in yellow, white or rose, and Platinum.

Is the pavé diamond detail included?
Yes. The accent diamonds shown on the shoulders are included in every version of this design.

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