Radiant Lab Grown Diamond Side Stone Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 12

$742.00

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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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 ·

Center

Radiant Cut

Carat

1 ct

Customizable

Metal

Customizable

Setting

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 diamond size and metal in the options on this page.

Detail	In the Photos	Customizable
Center diamond	Radiant · approx. 2.80 ct · 9.00 × 6.50 mm	Yes — choose from 1, 1.5, 2, 2.5, 2.8, 3, 3.5, 4 or 4.5 ct
Metal & color	All colors shown	Yes — 11 options
Side diamonds	17 diamonds · approx. 0.84 ct	Included as shown
Total diamond weight	Approx. 3.64 ct	Varies with chosen center size
Stone type	Lab Grown Diamond	Lab grown or natural

Shape	Size	Qty	Approx. Ct
Radiant	9.00 × 6.50 mm	1	2.80
Marquise	4.25 × 2.25 mm	9	0.56
Round	2.10 mm	8	0.28
Total	—	18	3.64

AT A GLANCE

A radiant Lab Grown Diamond engagement ring from Signora Jewels with an elegant alternating marquise and round diamond band.

The design shown features a 2.80 ct radiant center (9.00 × 6.50 mm) secured in a four-prong setting with 17 accent diamonds totaling approximately 0.84 ct.

Made to order in 11 metals: Sterling Silver, 9K, 14K and 18K yellow, white or rose gold, plus Platinum.

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

The clean geometry of a radiant Lab Grown Diamond is balanced by an elegant row of alternating marquise and round diamonds that create graceful movement along the band. The result is a ring that feels timeless while offering far more visual detail than a classic solitaire.

Designed by Signora Jewels, every ring is handcrafted to order around your chosen center diamond size. Whether you're planning a proposal or celebrating a milestone anniversary, this setting delivers brilliant sparkle from every angle while maintaining a refined, comfortable profile for everyday wear.

The alternating side stones naturally draw the eye toward the radiant center, creating a balanced silhouette that complements the rectangular shape while adding delicate brilliance across the finger.

Design Highlights

Radiant Lab Grown Diamond center available from 1.00–4.50 ct
Alternating marquise and round side diamonds totaling approximately 0.84 ct
Elegant four-prong center setting
18 diamonds shown in the reference design
Approximate total weight shown: 3.64 ct
Made to order in 11 premium metal options
Ideal for engagements and anniversary gifts

The alternating marquise and round diamonds are the defining feature of this ring. Rather than a continuous pavé band, the varying shapes introduce rhythm and dimension, giving the design a refined vintage-inspired character while keeping the radiant center as the unmistakable focal point.

Diamond & Ring Details

Specification	Details
Center Stone	Radiant · 9.00 × 6.50 mm · approx. 2.80 ct (shown)
Accent Diamonds	9 Marquise + 8 Round · approx. 0.84 ct total
Total Diamonds	18 Stones · approx. 3.64 ct
Setting	Four-Prong Center with Shared-Prong Side Stones
Finish / Occasion	High Polish · Engagement · Anniversary

Measurements are approximate. Final proportions vary with the selected center diamond size.

About Lab Grown Diamonds

Radiant diamonds combine the crisp outline of an emerald cut with brilliant faceting, producing exceptional sparkle while maintaining clean rectangular proportions. Their trimmed corners also provide added durability for everyday wear.

Every diamond from Signora Jewels is lab grown—chemically, physically and optically identical to a mined diamond, graded by the same standards, and offering exceptional beauty with a documented origin and no mining footprint.

Metal, Care & Fit

Choose from Sterling Silver, 9K, 14K or 18K yellow, white or rose gold, or Platinum. Gold and platinum are naturally hypoallergenic options for sensitive skin. Order your usual ring size, as most precious metal rings can be resized after purchase. Clean with warm water, mild soap and a soft brush, then store separately to maintain its brilliance.

FAQ

Can I choose a different center diamond size?
Yes. This design is available with center diamonds from 1.00 to 4.50 carats, and the setting is proportioned for your selected size.

How many side diamonds are included?
The design includes 17 accent diamonds consisting of nine marquise diamonds and eight round brilliant diamonds totaling approximately 0.84 carats.

Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are chemically, physically and optically identical to mined diamonds and are graded using the same international standards.

What is the difference between 9K and 18K gold?
18K gold contains more pure gold, giving it a richer color, while 9K gold offers excellent durability for everyday wear. Both are solid gold.

Can the ring be resized?
Yes. Most precious metal versions of this ring can be resized after purchase if needed.

Can I customize the design further?
Absolutely. We can modify the setting, side stones or create a completely bespoke version through our custom jewelry service.

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