Marquise Lab Grown Diamond Engagement Rings
Leonids lab grown marquise engagement rings feature a long, graceful center diamond that gives you broad finger coverage. The pointed shape can look larger than a round diamond of the same carat weight and help the finger look longer and slimmer. Compare the carat weight and millimeter measurements, then check the symmetry, length-to-width ratio, and bow tie before you choose. Explore solitaire, three-stone, twisted, floral, and side-stone designs inspired by the soft curve of a smile. Center diamonds come in sizes from 1 to 5 carats. Pair yours with 10K, 14K, or 18K gold or platinum. Leonids makes each ring to order, provides an IGI report for the center diamond, and checks the prongs, stone alignment, and finish before shipping.
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Elowen丨Marquise Lab Diamond Engagement Ring with Floral Diamond Cluster Accents
From $1,170.00
Unit price perElowen丨Marquise Lab Diamond Engagement Ring with Floral Diamond Cluster Accents
From $1,170.00
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Sable丨Marquise Lab-Grown Diamond Engagement Ring with Petal Accents
From $1,650.00
Unit price perSable丨Marquise Lab-Grown Diamond Engagement Ring with Petal Accents
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Marquise Cut Diamond Engagement Rings FAQ
A marquise lab grown diamond engagement ring features a real diamond grown in a lab. The diamond has curved sides and two pointed ends. Its long shape creates broad finger coverage and gives the ring an elegant, distinctive look. Source: Vogue Marquise Guide 2026.
A marquise diamond often looks larger than a round diamond of the same carat weight. Its long shape spreads more of the diamond across the finger. Compare the length and width in millimeters to see the true face up size and finger coverage. Source: GIA Perceived Diamond Size. Vogue Marquise Guide 2026.
Start by comparing marquise diamonds with ratios from 1.60 to 2.20. A ratio near 1.60 creates a wider shape. A ratio near 2.20 looks longer and slimmer. A ratio close to 2.00 gives the diamond a classic, balanced outline. Source: GIA Gems & Gemology.
A faint bow tie is normal in a marquise diamond. It forms a soft shadow across the center. A dark or wide bow tie dulls the diamond's sparkle. View the stone in regular light and turn it from side to side. Source: GIA Bow Tie Research.
A solitaire puts the center diamond first. A halo adds sparkle and makes the stone look larger. Three stone, floral, and split shank designs add more detail across the finger. Make sure the setting covers both tips and holds the diamond firmly.
A raised marquise setting may leave enough space for a straight wedding band to sit flush. A low setting may fit better with a curved, contour, or chevron wedding band. Check the side view and contact points to prevent the two rings from rubbing together. Source: The Knot Wedding Band Guide.
Leonids center diamonds of 0.5 carat or larger come with an IGI report. The report confirms the lab grown origin and records the diamond's grading details. The IGI report number matches the laser inscription on the diamond's girdle. Small accent diamonds do not receive separate reports. For finished jewelry with a center stone smaller than 0.5 carats, we provide an AGL finished jewelry certification.
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MASTER CRAFTSMANSHIP
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| FREE SHIPPING | ETHICALLY SOURCED.ALWAYS |
| Anywhere in the world | We proudly offer only lab-grown diamonds & recycled metals. |
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| 40% BELOW TRADITIONAL LUXURY | 30-DAY RETURN |
| Direct to you, no markups, no middlemen. | Love it or return it - no questions asked. |
|
FREE SHIPPING Anywhere in the world |
|
ETHICALLY SOURCED.ALWAYS We proudly offer only lab-grown diamonds & recycled metals. |
|
40% BELOW TRADITIONAL LUXURY Direct to you, no markups, no middlemen. |
|
30-DAY RETURN Love it or return it - no questions asked. |
Diamonds you can live in.
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