Marquise Lab-Grown Diamond 7.6×4 mm, Loose

A marquise lab-grown diamond, 7.6 x 4 mm, D to F color, VVS clarity, sold individually. The same boat shape but much larger than the 6 x 3 version.

Large enough to be the main stone

The 6 x 3 version is mostly a side stone. The 7.6 x 4 can stand alone: nearly eight millimetres long, it spans the full width of the finger set crosswise, or almost the whole finger segment set lengthwise.

It's a shape that makes a strong impression while staying light, because a marquise is shallow and weighs less than other shapes of the same size. Good for people who like a statement piece without a heavy hand.

Lengthwise or crosswise

Lengthwise along the finger is the most popular choice, as it makes the finger look long and slim. Crosswise, the stone cuts across the band for a more classic look, but it catches more easily when you bend your finger.

At this size the difference between the two orientations is very clear, so try on a sample before deciding. Changing your mind after setting means removing the stone and remaking the seat.

Two points and a bowtie, more visible at larger sizes

The longer the stone, the more the bowtie in the middle tends to show. At 7.6 mm, the quality of the cut decides whether the stone is evenly bright or has a dark band across it. This is not on the grading report.

Both points still need fully covering prongs. At a larger size the tips are longer, so the leverage on impact is stronger, and the tip prongs need to be thicker than on the small version.

Care

Take it off for manual work, cleaning and sports. With a long stone pointed at both ends, knocking it on a table edge is the most common mishap.

Wash with warm water and a soft brush, brushing the underside along the stone's axis. Have the prongs at both tips checked regularly.