Lab Grown Marquise Diamond Rings

A marquise cut lab grown diamond ring features a certified lab-grown diamond in the marquise cut - an elongated, boat-shaped brilliant cut with two pointed tips. Lab grown marquise diamonds are chemically identical to mined diamonds, independently certified by IGI or SGL, and set in BIS hallmarked gold. The marquise cut creates the longest visual silhouette of any standard diamond shape, making it the most effective cut for finger elongation and face-up size appearance.

A Dutch marquise is a variant of the standard marquise cut with a broader body and slightly blunter tips than the classic marquise. Its length-to-width ratio (typically 1.50:1 to 1.75:1) is lower than the standard marquise (1.85:1 to 2.10:1), producing a wider, more cushion-like silhouette while retaining the characteristic pointed tips. Dutch marquise lab grown diamonds are available in ring and earring configurations and represent one of the most underserved search clusters in Indian lab-grown diamond content.

The bow-tie effect is a dark shadow that appears across the centre of an elongated diamond shape - including the marquise - caused by the way light passes through the long axis of the stone. Every marquise has some degree of bow-tie. A faint bow-tie visible only under direct overhead light is considered acceptable. A prominent bow-tie visible in all light conditions significantly reduces the stone’s beauty. The bow-tie must be evaluated in person, as it cannot be assessed from a photograph or certificate grade.

A 1ct lab grown marquise diamond ring with IGI certification, VS1 clarity, E–F colour in 18KT white gold typically costs ₹55,000–₹1,00,000 in India. A 2ct certified marquise ring ranges from ₹1,00,000–₹1,80,000. A 3ct certified marquise ring ranges from ₹1,60,000–₹3,00,000. Marquise cut lab grown diamonds are priced slightly lower per carat than round brilliants of equivalent quality, and the marquise’s elongated spread means a 2ct marquise appears larger than a 2ct round of the same price.

Yes. The marquise cut engagement ring is one of the most distinctive proposal ring choices available - its elongated pointed form is immediately recognisable and creates a ring that stands apart from round brilliant and oval solitaires. The marquise’s strong finger-lengthening effect and large face-up appearance relative to carat weight make it particularly effective for buyers who want maximum visual impact from a given budget. Lab grown diamonds make the 2ct+ marquise range accessible.

t length-to-width ratio is best for a marquise diamond? The classic marquise length-to-width ratio range is 1.85:1 to 2.10:1. Within this range, the marquise’s proportions are balanced: long enough to show the elongated profile clearly, not so long that the tips appear fragile or the bow-tie becomes pronounced. Below 1.75:1 the marquise begins to look stubby; above 2.20:1 the stone may appear narrow and elongated at the expense of width. The ideal ratio depends on the wearer’s hand and finger proportions - a Lucira advisor can demonstrate different ratios in person.

18KT white gold is the most popular choice for marquise diamond rings, as the neutral tone makes colourless diamonds appear their whitest and allows the stone’s elongated form to dominate the visual composition. 18KT yellow gold creates warmth that complements H–I colour stones well and suits Indian gifting and occasion conventions. 18KT rose gold adds a contemporary, romantic tone that has grown in popularity for marquise engagement rings. All are BIS hallmarked at Lucira.