Round Rose Cut Lab Grown Diamond Solitaire Engagement Ring

Signora Jewelry Certificate IncludedMade to OrderInsured Delivery

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$291.00

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Product documentation Signora Jewelry Certificate Included A Signora Jewelry Certificate lists the finished-piece and material details supplied for this design. Finished-piece and material details · Signora Jewelry Certificate included.

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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

Detail	Details
Center diamond	Round Rose Cut · 4.00 mm diameter · approx. 0.24 ct
Accent diamonds	None · 0.00 ct
Total diamond weight	approx. 0.24 ct · 1 stone
Stone type	Lab Grown Diamond
Setting	Four-Prong Solitaire
Finish · Occasion	High Polish · Engagement

At a glance

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

A 0.24 ct, 4.00 mm round rose-cut center held in a Four-Prong Solitaire setting with no accent diamonds. Approx. 0.24 ct total.

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

Made to order in your selected metal, with the plain polished shank and open center structure kept consistent across the metal options.

Signora Jewels keeps the top view focused on one 4.00 mm round rose-cut diamond. Four rounded prongs touch the stone at spaced points around its edge, while the shoulders divide just before the center instead of running straight into the setting.

That split creates two triangular openings beside the diamond. The center stays visually separate from the 1.40 mm lower shank, and the open under-gallery leaves the underside accessible when the ring needs cleaning.

Design highlights

0.24 ct round rose-cut center diamond
4.00 mm center diameter
Four-Prong Solitaire setting
Split cathedral-style shoulders with triangular negative space
No accent diamonds or pavé
Plain High Polish shank

The shoulder treatment is the detail to notice. Each side divides as it reaches the diamond, then rejoins the plain band below, so the center gets structural support without adding another row of stones. For more help comparing solitaire proportions, see our engagement ring guide.

About Lab Grown Diamonds

The rose cut uses broad facets and a flatter faceting pattern than a modern round brilliant, so the 4.00 mm stone returns larger flashes rather than a dense field of tiny reflections. Our diamond stone guide explains how cut style changes the way a diamond handles light.

Metal, Care & Fit

The ring is available in silver, yellow gold, white gold, rose gold and platinum across the listed purities. Yellow and rose metals add warmth around the open center; white gold and platinum keep the look cooler. Use a soft brush under the open gallery so residue does not collect beneath the rose-cut center. See the jewelry care guide for routine cleaning.

FAQ

How exposed is the 4.00 mm rose-cut center?
Four prongs leave much of the round outline visible. The design trades the extra metal of a six-prong setting for a cleaner view of the 4.00 mm stone, so avoiding hard knocks to the exposed edge matters during daily wear.

What do the split cathedral-style shoulders do?
The shoulders divide immediately beside the center and form triangular openings before joining the plain shank. That structure supports the setting from both sides without adding accent diamonds around the rose-cut center.

Can this solitaire be worn with another ring?
The lower shank is plain and approximately 1.40 mm wide, which keeps the base narrow for stacking. The raised center structure determines how closely a straight companion band sits beside it.

Which metal changes the look of this rose-cut design most?
Yellow and rose gold put a warmer frame around the open 4.00 mm center, while white gold and platinum create less color contrast at the four prongs. Because there are no side diamonds, the metal around the center remains especially visible.

How should I clean the open under-gallery?
The open underside gives direct access beneath the center diamond. Use warm water, mild soap and a soft brush around the prongs and under the gallery, then rinse thoroughly and dry with a lint-free cloth.

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