Round Cut Lab Grown Diamond Solitaire Engagement Ring

IGI Report IncludedMade to OrderInsured Delivery

1 of 9

$562.00

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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. 0.6 ct lab-grown diamond · IGI report · Signora Certificate included.

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Forever, A & J

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

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.

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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 · Solitaire

Center

Round Brilliant

Metal

Customizable

Setting

Solitaire

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

Detail	Details
Center diamond	Round Cut · 5.50 mm diameter · approx. 0.60 ct
Accent diamonds	None
Total diamond weight	approx. 0.60 ct · 1 stone
Stone type	Lab Grown Diamond
Setting	Four-Prong Solitaire with nature-inspired open shoulders
Finish · Occasion	High Polish · Engagement

At a glance

A round lab grown diamond solitaire engagement ring from Signora Jewels.

A 0.60 ct, 5.50 mm round center sits in a Four-Prong Solitaire setting above sculpted open leaf-and-vine shoulders. Approx. 0.60 ct total.

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

Each metal color is shown in the photos. Choose your metal in the options on this page.

Signora Jewels keeps the diamond work deliberately simple on this engagement ring: one 5.50 mm round center, four visible prongs and no accent stones. Instead of pavé, the shoulders carry sculpted leaf-and-vine metalwork that splits into open spaces as it approaches the center.

The setting rises approximately 5.0–5.5 mm, enough to separate the round diamond from the organic shoulder work without making the ring top-heavy. At the base, the shank measures about 1.60 mm wide and 1.60 mm thick, so the lower band stays narrow while the shoulders widen toward the setting.

Design highlights

0.60 ct round center diamond
Center measures approx. 5.50 mm diameter
Four-Prong Solitaire setting
No side or accent diamonds
Sculpted leaf-and-vine open shoulder design
Slim polished shank, approx. 1.60 mm wide at the base

The absence of side stones puts all the light on the round center. What gives the ring its character is the metalwork beside it: branching shoulders curve toward the basket, leaving open spaces between the vine-like sections instead of forming a solid band.

About Lab Grown Diamonds

A 5.50 mm round cut concentrates its light return into a compact circular face, making it a natural fit for an open solitaire setting. Read more about round proportions, cut and grading in the diamond stone guide.

Metal, Care & Fit

This design is made in silver, 10K, 14K and 18K yellow, white or rose gold, plus platinum. White metals keep the prongs visually close to the diamond, while yellow and rose gold make the sculpted shoulder work easier to distinguish. Compare the choices in the metal guide. Clean beneath the center and through the open shoulder sections with warm water, mild soap and a soft brush.

FAQ

Does this ring have any diamonds in the shoulders?
No. The only diamond is the 0.60 ct round center; the leaf-and-vine detail along the shoulders is sculpted metalwork.

How securely is the round center held?
Four prongs hold the 5.50 mm round diamond at evenly spaced points around the stone. The open arrangement leaves most of the diamond visible while keeping the center mechanically secured.

How high does the center sit?
The setting height is approximately 5.0–5.5 mm. That lifts the diamond above the branching shoulder detail without creating the taller profile of a heavily raised gallery.

What makes this ring nature-inspired?
The shoulders divide into curved, branch-like metal sections that resemble leaves and vines. The detail is created entirely in metal rather than with additional diamonds.

Which metal makes the shoulder detail stand out most?
Yellow and rose gold create stronger visual contrast between the metalwork and the round center. White gold and platinum make the prongs and diamond read as a more continuous bright surface.

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