Round Lab Grown Diamond Solitaire Engagement Ring (1.00 ct)

IGI Report IncludedMade to OrderInsured Delivery

round lab grown diamond solitaire engagement ring in yellow gold

1 of 12

$624.00

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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. 1.0 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.

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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
Ring style	Classic Solitaire
Center diamond	Round • 6.50 mm • Approx. 1.00 ct
Total diamond weight	Approx. 1.00 ct (1 Diamond)
Stone type	Lab Grown Diamond
Setting	Four-Prong Solitaire
Finish	High Polish
Occasion	Engagement, Anniversary, Proposal

AT A GLANCE

A classic round Lab Grown Diamond solitaire engagement ring from Signora Jewels.

The design is shown with one 6.50 mm round brilliant lab grown diamond weighing approximately 1.00 ct, secured in a four-prong setting. IGI certification is available with the center diamond.

Made to order in Sterling Silver, 9K, 14K and 18K Gold (Yellow, White and Rose) or Platinum by Signora Jewels.

Made to order — select your preferred metal above. Want a custom version?

Customize your jewelry here.

A solitaire never needs extra decoration. The eye goes straight to the round brilliant, held securely by four rounded prongs that leave the sides of the diamond open to the light. From the top the profile stays clean, while the gently tapered shoulders draw attention toward the center stone without adding visual weight.

The 6.50 mm round brilliant measures approximately one carat, a size that feels balanced on the hand and works comfortably for everyday wear. The polished band keeps the design uncluttered so the sparkle comes entirely from the diamond itself. It slips easily beside a wedding band later without competing for attention.

Every ring is individually made to order by Signora Jewels. Choose your preferred precious metal and our craftsmen finish each ring with careful attention to proportion, polish and setting quality before it is shipped to you.

Design Highlights

Approx. 1.00 ct round brilliant Lab Grown Diamond
Classic four-prong solitaire setting
Clean polished band with no side diamonds
Open gallery allows light to reach the diamond
Comfortable low-profile design for everyday wear
Made to order in 11 precious metal options
Ideal engagement or anniversary ring

The beauty of this design comes from its proportions. The rounded shoulders rise naturally into the basket so the diamond appears to float above the band while remaining secure from every angle.

About Lab Grown Diamonds

The round brilliant is cut with 57–58 facets engineered to return light directly to the eye, making it the brightest and most popular diamond shape for engagement rings. Its balanced proportions create exceptional brilliance and fire from every viewing angle.

Every Signora lab grown diamond is chemically, physically and optically identical to a mined diamond and graded by the same international standards. Choosing a lab grown diamond means enjoying the beauty of a real diamond with a documented origin and no mining footprint.

Metal, Care & Fit

Choose from Sterling Silver, 9K, 14K or 18K Gold in Yellow, White or Rose, or Platinum. Gold and platinum are naturally hypoallergenic and suitable for everyday wear. Clean with warm water, mild soap and a soft brush, then dry with a lint-free cloth. Store your ring separately to help preserve its high-polish finish.

FAQ

Is the 1.00 ct diamond included?
Yes. This ring includes the approximately 1.00 carat round lab grown diamond shown in the product images.

Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds have the same chemical composition, hardness, brilliance and durability as mined diamonds and are graded using the same 4C standards.

Why choose a four-prong setting?
A four-prong setting exposes more of the diamond to light, allowing excellent brilliance while securely holding the center stone in place.

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

What is the difference between 9K, 14K and 18K gold?
All are solid gold. 9K offers excellent durability, 14K balances strength and rich color, while 18K contains the highest gold content and has the warmest appearance.

Can I customize this ring?
Yes. If you'd like a different center shape, larger diamond or a personalized design, our custom jewelry service can create a ring tailored specifically for you.

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