Round Lab Grown Diamond Solitaire Engagement Ring (1.92 ct)

Name: Round Lab Grown Diamond Solitaire Engagement Ring (1.92 ct)
Brand: Signora Jewels
SKU: DR/076/S/1
Availability: InStock

IGI CertifiedMade to orderDuties prepaid

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◇ IGI Certified

$323.00

incl. your selections · free express shipping

Metal:

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. Engraving is final and can't be resized or returned.

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

Lab-grown diamondsGrown, not mined

IGI / GRA certifiedIndependently graded

Insured worldwide shippingSigned & tracked

Price matchLower price? We’ll match it

30-day returnsShop with confidence

Duties prepaidUS · UK · Canada

About This Ring

Round Brilliant · Solitaire

Center

Round Brilliant

Carat

1 ct

Customizable

Metal

Customizable

Setting

Solitaire

Common questions

Ring questions, answered

Sizing, certification, shipping to the USA and returns — the things shoppers ask us most about rings.

Still deciding? Talk to a Signora jeweler — free, and no obligation. Book a consultation →

Answers last updated July 2, 2026

Do lab-grown diamonds pass a diamond tester?

Yes. Lab-grown diamonds pass standard thermal and electrical diamond testers because they are pure crystallized carbon — the same material as mined diamonds. Only advanced laboratory spectroscopy can determine origin. Every Signora Jewels lab-grown diamond ships with an IGI report, and its number is laser-inscribed on the girdle so you can verify the stone free at igi.org.

Are lab-grown diamonds real diamonds?

Yes. Lab-grown diamonds are chemically, physically, and optically identical to mined diamonds, and the FTC recognizes them as real diamonds — unlike simulants such as cubic zirconia. They are graded on the same 4Cs of cut, color, clarity, and carat. Signora Jewels uses IGI-certified lab-grown diamonds in every made-to-order diamond ring.

Do lab-grown diamonds get cloudy or fade over time?

No. Lab-grown diamonds never cloud, fade, or yellow — at Mohs 10 hardness they are structurally identical to mined diamonds, so the brilliance is permanent. Any dullness is a surface film of skin oil or soap, which washes off with warm soapy water and a soft brush. Your Signora ring will sparkle the same decades from now.

How do I know my ring size when ordering online?

Use the Signora Jewels ring size guide — the on-page “Find my size” tool converts a simple millimeter measurement of your finger or an existing ring into your US size. Measure in the evening when fingers are largest, and go up half a size if you’re between sizes or choosing a wide band. Every ring is made to order in your exact size.

How long does it take to get a made-to-order ring?

About two weeks. The Round Lab Grown Diamond Solitaire Engagement Ring (1.92 ct) is crafted to order at the Signora Jewels atelier in Surat, then shipped to the US fully insured and tracked with all customs duties prepaid — you pay nothing at delivery. Shipping is free on orders over $500, and you can follow your package door-to-door with the tracking number we send.

Can I return a made-to-order engagement ring?

Yes — standard designs qualify for Signora Jewels’ 30-day return policy even though each ring is made to order in your size and metal. Customized pieces, such as engraved or bespoke-modified designs, are final sale and cannot be returned. Confirm your size with our ring size guide before ordering so fit never becomes an issue.

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