Round Cut Lab Grown Diamond Side Stone Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 9

$598.00

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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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Center Diamond:

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Forever, A & J

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Engraving 0 / 20

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

For ChristmasOrder by Monday 30 November for delivery before 25 December. Holiday gift guide

Arrives 7 business days to make, then 5–8 insured & tracked.

30-day returns Courier, insurance & duties covered. No restocking fee.

Duties & taxesPrepaid at checkout. Nothing extra to pay on delivery.

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

Round Brilliant ·

Center

Round Brilliant

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.

Detail	In the photos	Customizable
Center diamond	Round Brilliant Cut · 9.20 mm diameter · approx. 3.00 ct	1–4.5 ct
Accent diamonds	Marquise and round diamonds · approx. 0.08 ct total	Scales with center
Total diamond weight	approx. 3.08 ct	Varies with selected center
Stone type	Lab Grown Diamond	—
Setting	Four-Prong center with nature-inspired Side Stone shoulders	—
Finish · Occasion	High Polish · Engagement, Anniversary	—

Diamond details

Shape	Role	Weight (approx.)
Round Brilliant Cut	Center · 9.20 mm	3.00 ct
Marquise and Round Cut	Side and shoulder accents	0.08 ct total
Total	Center + accents	3.08 ct

At a glance

A round lab grown diamond side stone engagement ring from Signora Jewels.

A 3.00 ct, 9.20 mm round brilliant center sits in a Four-Prong setting above marquise and round accents totaling approx. 0.08 ct. Approx. 3.08 ct total.

Made to order in 11 metals: silver, 10K/14K/18K gold (yellow, white, rose) and platinum.

Choose your center weight and metal for this made-to-order ring.

Signora Jewels sets the 9.20 mm round brilliant between sculpted leaf-and-vine shoulders, with marquise and round diamonds tucked into the open metalwork rather than lined up in a conventional pavé row. The Four-Prong center stays visually separate from the branching engagement ring shoulders.

The setting rises approximately 7.5–8.0 mm. At the base, the shank measures about 2.00 mm wide and 1.70 mm thick, while the upper shoulder work spreads to roughly 5.5–6.5 mm around the side stones.

Design highlights

3.00 ct round brilliant center in the reference design
Center measures approx. 9.20 mm diameter
Marquise and round accents totaling approx. 0.08 ct
Four-Prong raised center setting
Sculpted leaf-and-vine Side Stone shoulders
Approx. 3.08 ct total diamond weight

The marquise accents echo the pointed leaf shapes in the metalwork, while the smaller rounds add tighter flashes between them. The shoulders stay open around the center, so the 3.00 ct round remains the dominant shape from the front.

Diamond & Ring Details

Specification	Details
Center stone	Round Brilliant Cut · 9.20 mm diameter · approx. 3.00 ct in the photos
Accent diamonds	Marquise and round diamonds · approx. 0.08 ct total
Total diamond weight	approx. 3.08 ct in the photographed configuration
Setting	Four-Prong center with nature-inspired Side Stone shoulders
Center options	1, 1.5, 2, 2.5, 3, 3.5, 4 and 4.5 ct
Finish	High Polish

Measurements are approximate; your selected center weight sets the final diamond dimensions and total weight.

About Lab Grown Diamonds

The 9.20 mm round brilliant gives the reference ring a broad circular face, while the marquise and round side stones break up the shoulder line with different facet patterns. Read more about shape and cut in the diamond stone guide.

Metal, Care & Fit

White gold and platinum keep the prongs visually close to the diamonds, while yellow and rose gold make the carved leaves and open vines easier to read. Compare choices in the metal guide. Clean around the side stones and beneath the raised center with warm water, mild soap and a soft brush.

FAQ

What makes this a Side Stone ring instead of a pavé solitaire?
The shoulders use distinct marquise and round diamonds within sculpted leaf-and-vine metalwork. Their approx. 0.08 ct combined weight frames the center without forming one continuous pavé row.

How high does the 3.00 ct reference center sit?
The setting rises approximately 7.5–8.0 mm. That elevation keeps the 9.20 mm round visibly separate from the decorative shoulders.

What do the marquise accents add to the design?
The marquise diamonds repeat the pointed leaf shapes carved into the shoulders. Their outline reinforces the botanical pattern while the round accents fill smaller spaces around them.

Will a straight wedding band sit completely flush?
The raised center and sculpted side-stone shoulders can leave a small gap beside a straight band. A contoured band follows the setting more closely.

How should the leaf-and-vine shoulders be cleaned?
Use a soft brush around the recessed side stones and through the openings in the metalwork. Those small spaces hold more residue than the plain lower shank.

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