Diamond solitaire ring in a black presentation box

Round Cut Lab Grown Diamond Engagement Rings

Round Cut Lab Grown Diamond Engagement Rings

147 designs
  • Independent reportsExact scope shown by product
  • Made to order in SuratThree generations of expertise
  • International deliveryDuties & taxes prepaid
Round cut lab grown diamond side stone engagement ring in rose gold with graduated round diamond shoulders Round cut lab grown diamond side stone engagement ring in rose gold with graduated round diamond shoulders
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Round Lab Grown Diamond Scalloped Floral Halo Engagement Ring Round Lab Grown Diamond Scalloped Floral Halo Engagement Ring
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Round cut lab grown diamond engagement ring with 1.00 ct center, six-prong basket, pavé-set shoulders and hidden diamond accents in yellow gold with white-tone prongs. Round cut lab grown diamond engagement ring with 1.00 ct center, six-prong basket, pavé-set shoulders and hidden diamond accents in yellow gold with white-tone prongs.
Round cut lab grown diamond engagement ring with sculptural partial bezel swirl, botanical leaf-and-vine shoulders and tiny diamond accents in polished yellow gold. Round cut lab grown diamond engagement ring with sculptural partial bezel swirl, botanical leaf-and-vine shoulders and tiny diamond accents in polished yellow gold.
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Round cut lab grown diamond engagement ring with six-claw center setting, round diamond-set leaf shoulders, milgrain edges and filigree detailing in yellow gold. Round cut lab grown diamond engagement ring with six-claw center setting, round diamond-set leaf shoulders, milgrain edges and filigree detailing in yellow gold.
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Round Old European Cut Lab Grown Diamond Three-Stone Ring with Pear Side Diamonds in White Gold Round Old European Cut Lab Grown Diamond Three-Stone Ring with Pear Side Diamonds in White Gold
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Fancy pink round cut lab grown diamond engagement ring with eight-prong yellow gold basket, white diamond pavé shoulders and polished gold shank. Fancy pink round cut lab grown diamond engagement ring with eight-prong yellow gold basket, white diamond pavé shoulders and polished gold shank.
Round Cut Lab Grown Diamond Pavé Cathedral Engagement Ring in White Gold Round Cut Lab Grown Diamond Pavé Cathedral Engagement Ring in White Gold
Round cut lab grown diamond bezel engagement ring with 0.50 ct center diamond, two tapered baguette green emerald side stones and polished yellow gold band. Round cut lab grown diamond bezel engagement ring with 0.50 ct center diamond, two tapered baguette green emerald side stones and polished yellow gold band.
Orbit Round Cut Lab Grown Diamond Halo Engagement Ring in White Gold Orbit Round Cut Lab Grown Diamond Halo Engagement Ring in White Gold
Round cut lab grown diamond engagement ring with green emerald gemstone accents, white diamond pavé shoulders, split shank and raised setting in yellow gold. Round cut lab grown diamond engagement ring with green emerald gemstone accents, white diamond pavé shoulders, split shank and raised setting in yellow gold.
Round cut lab grown diamond three-stone engagement ring in yellow gold with six-prong center, pear-cut side diamonds and polished shank. Round cut lab grown diamond three-stone engagement ring in yellow gold with six-prong center, pear-cut side diamonds and polished shank.
Round cut lab grown diamond bypass engagement ring in yellow gold with four-prong center, asymmetrical pavé shoulders and sweeping twist band. Round cut lab grown diamond bypass engagement ring in yellow gold with four-prong center, asymmetrical pavé shoulders and sweeping twist band.
Round cut lab grown diamond three-stone engagement ring in white gold with two round brilliant side diamonds, decorative prong setting and polished band. Round cut lab grown diamond three-stone engagement ring in white gold with two round brilliant side diamonds, decorative prong setting and polished band.
Round lab grown diamond pavé halo engagement ring in white gold with polished prongs and diamond-set shoulders Round lab grown diamond pavé halo engagement ring in white gold with polished prongs and diamond-set shoulders
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Round Cut Lab Grown Diamond Side Stone Engagement Ring in White Gold Round Cut Lab Grown Diamond Side Stone Engagement Ring in White Gold
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Round Cut Lab Grown Diamond Cathedral Engagement Ring in Rose Gold Round Cut Lab Grown Diamond Cathedral Engagement Ring in Rose Gold
Round lab grown diamond four-prong engagement ring in yellow gold with spaced round diamond accents and slim polished band Round lab grown diamond four-prong engagement ring in yellow gold with spaced round diamond accents and slim polished band
Round cut lab grown diamond three-stone engagement ring in white gold with tapered baguette side diamonds and polished band Round cut lab grown diamond three-stone engagement ring in white gold with tapered baguette side diamonds and polished band
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Round Cut Lab Grown Diamond Bypass Engagement Ring in Yellow Gold Round Cut Lab Grown Diamond Bypass Engagement Ring in Yellow Gold
The Collection

Round Cut Lab Grown Diamond Engagement Rings

The round brilliant is the most light-hungry cut ever engineered: 58 facets arranged to send almost every ray that enters the stone back to your eye. It is the shape that sparkles hardest, and the reason it has stayed the world's most-chosen diamond for a century.

This collection brings together our round brilliant lab grown diamonds across engagement rings, studs, pendants, tennis pieces and everyday designs — from a single solitaire to graduated pavé.

  • Lab-grown diamonds — chemically and optically identical to mined stones
  • Signora Jewelry Certificate with every piece; IGI report for centre diamonds of 0.50 ct and above
  • 11 metal options: recycled silver, 10K/14K/18K yellow, white and rose gold, and platinum
  • Made to order, so most designs can be scaled to your preferred carat weight

Every piece is made to order in your choice of recycled silver, 10K, 14K or 18K gold, or platinum, and arrives with a Signora Jewelry Certificate, plus an IGI grading report when the centre diamond is 0.50 ct or more.

The Signora promise

Made for you. Backed by us.

Thoughtful craftsmanship, clear proof and support that continues after delivery.

Made to Order

Every piece is crafted after you order, then hand-finished in our family workshop in Surat.

Independent Certification

Each approved individual lab-grown center or primary diamond of 0.50 ct or more includes an IGI grading report.

Import Duties

Signora prepays import duties and taxes for every destination available at checkout, so they are not charged again on delivery.

30-Day Returns

Eligible standard products have 30-day returns when unworn, unused and in their original condition.

Made to last

Care & Composition

Clear information about materials, finishing, fit and everyday care — before you choose your piece.

  • Solid precious metals
  • Hand-finished in Surat
  • Made to order
Solid materials

Every Signora piece is made in solid precious metal — never plated or filled. Available options can include 925 sterling silver, 10K, 14K or 18K yellow, white or rose gold, and Pt950 platinum. Stone and certification details are listed on each product page.

Hand finishing

Each order is finished by hand in our family workshop in Surat. White gold is palladium-based, nickel-free and rhodium-finished; yellow and rose gold are polished to their natural warmth; platinum develops a soft patina with wear.

Everyday care

Wipe your piece after wear and store it separately in its pouch or box. Remove jewelry before swimming, showering, exercise or contact with lotions and cleaning products. For deeper cleaning, use lukewarm water, mild soap and a very soft brush; ask a jeweler to check stone settings periodically.

Sizing & Fit

Ring sizes and bracelet, necklace or chain lengths vary by design, so confirm the options on the product page before checkout. Because every piece is made to order, contact Client Care before ordering if you need a custom size or are unsure about fit.