Diamond solitaire ring in a black presentation box

Round Cut Lab Grown Diamond Engagement Rings

Round Cut Lab Grown Diamond Engagement Rings

96 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
Make it yours
Round Cut Lab Grown Diamond Split Shank Engagement Ring in Rose Gold Round Cut Lab Grown Diamond Split Shank Engagement Ring in Rose Gold
Make it yours
Round cut lab grown diamond split shank engagement ring in yellow gold with three pavé rows and six-prong center Round cut lab grown diamond split shank engagement ring in yellow gold with three pavé rows and six-prong center
Make it yours
Round cut lab grown diamond halo engagement ring in white gold with cushion-outline pavé halo and plain band Round cut lab grown diamond halo engagement ring in white gold with cushion-outline pavé halo and plain band
Make it yours
Round cut lab grown diamond halo engagement ring in rose gold with geometric pavé halo and twisted shoulders Round cut lab grown diamond halo engagement ring in rose gold with geometric pavé halo and twisted shoulders
Make it yours
Heritage Round Lab Grown Diamond Three-Stone Engagement Ring with Leaf Diamond Clusters in Yellow Gold Heritage Round Lab Grown Diamond Three-Stone Engagement Ring with Leaf Diamond Clusters in Yellow Gold
Make it yours
Heirloom Round Lab Grown Diamond Vintage Engagement Ring with Scrollwork Filigree Shoulders in Rose Gold Heirloom Round Lab Grown Diamond Vintage Engagement Ring with Scrollwork Filigree Shoulders in Rose Gold
Make it yours
Everleaf Round Lab Grown Diamond Nature Engagement Ring with Leaf & Vine Pavé Shoulders in Yellow Gold Everleaf Round Lab Grown Diamond Nature Engagement Ring with Leaf & Vine Pavé Shoulders in Yellow Gold
Make it yours
Bloom Round Lab Grown Diamond Nature Engagement Ring with Marquise Floral Clusters in White Gold Bloom Round Lab Grown Diamond Nature Engagement Ring with Marquise Floral Clusters in White Gold
Make it yours
Infinity Round Lab Grown Diamond Hidden Halo Engagement Ring with Twisted Infinity Pavé Shank in White Gold Infinity Round Lab Grown Diamond Hidden Halo Engagement Ring with Twisted Infinity Pavé Shank in White Gold
Make it yours
Heritage Round Lab Grown Diamond Bezel Engagement Ring with Vintage Milgrain Halo in Yellow Gold Heritage Round Lab Grown Diamond Bezel Engagement Ring with Vintage Milgrain Halo in Yellow Gold
Make it yours
Celeste Round Lab Grown Diamond Pavé Engagement Ring with Milgrain Shank in Yellow Gold Celeste Round Lab Grown Diamond Pavé Engagement Ring with Milgrain Shank in Yellow Gold
Serene Round Lab Grown Diamond Three-Stone Engagement Ring with Bypass Shank in White Gold Serene Round Lab Grown Diamond Three-Stone Engagement Ring with Bypass Shank in White Gold
Make it yours
Luna Round Lab Grown Diamond Solitaire Engagement Ring with Knife Edge Shank in Yellow Gold Luna Round Lab Grown Diamond Solitaire Engagement Ring with Knife Edge Shank in Yellow Gold
Make it yours
Round Lab Grown Diamond Halo Engagement Ring with Micro Pavé Shank in White Gold Round Lab Grown Diamond Halo Engagement Ring with Micro Pavé Shank in White Gold
Round Lab Grown Diamond Solitaire Engagement Ring with Modern Bypass Semi-Bezel Setting in White Gold Round Lab Grown Diamond Solitaire Engagement Ring with Modern Bypass Semi-Bezel Setting in White Gold
Make it yours
Round Lab Grown Diamond Twisted Halo Engagement Ring with Infinity Pavé Shank in Yellow Gold Round Lab Grown Diamond Twisted Halo Engagement Ring with Infinity Pavé Shank in Yellow Gold
Make it yours
Round Lab Grown Diamond Three-Stone Engagement Ring with Trellis Basket Setting in White Gold Round Lab Grown Diamond Three-Stone Engagement Ring with Trellis Basket Setting in White Gold
Round Lab Grown Diamond Nature Halo Engagement Ring with Bezel Center and Leaf Vine Filigree in White Gold Round Lab Grown Diamond Nature Halo Engagement Ring with Bezel Center and Leaf Vine Filigree in White Gold
Make it yours
Round Lab Grown Diamond Floral Halo Engagement Ring with Marquise Halo in White Gold Round Lab Grown Diamond Floral Halo Engagement Ring with Marquise Halo in White 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
  • IGI certified, supplied with the piece on delivery
  • 11 metal options: recycled silver, 9K/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, 9K, 14K or 18K gold, or platinum, and arrives IGI certified with its lab-grown diamond grading report.

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, 9K, 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.