Radiant Lab-Grown Diamond 4.2×3.15 mm, Loose
Product code: KCR-17914
Quantity
Loose radiant lab-grown diamond, 4.2×3.15 mm, D–F color, VVS clarity, sold per stone. For setting in rings, earrings, pendants or as accents. No individual grading report per stone.
Jewelry details
A radiant-cut lab-grown diamond, 4.2 x 3.15 mm, D to F color, VVS clarity, sold individually. A rectangle with cut corners and brilliant-style faceting.
How radiant differs from emerald and baguette
All three are rectangular, but the cutting is completely different. Emerald and baguette are step cuts with flat facets, so they look clear and calm. Radiant is cut in a brilliant style like a round, so even with a rectangular outline it throws nearly as much fire as a round stone.
That's why customers choose radiant when they want clean geometric lines without giving up sparkle. In return, radiant is harder to cut well, and a poorly cut one looks much darker than a round of the same size.
Why it's listed in millimetres, not ly
The "ly" unit is only used for round stones, which have a single diameter. A radiant has two different dimensions, so both must be given — here 4.2 mm long and 3.15 mm wide.
When ordering, give us the two exact measurements of the seat it's going into; don't convert to ly. The two systems don't convert into each other, and a wrong conversion means a stone that won't fit.
Setting means getting the orientation right
A rectangular stone has an orientation; turn it ninety degrees and the whole piece changes shape. Our setter will ask whether you want the stone along the ring band or across it before setting, because changing your mind afterwards means taking it out and starting again.
The four cut corners of a radiant are where the prongs grip, so the seat must be cut to the right proportions. A seat made for an emerald can't be reused for a radiant even with the same measurements, because the corner cuts differ.
Care
Brilliant-cut stones have many small facets, so they pick up oil faster than step cuts. Wipe with a soft cloth after each wear, and wash with warm water and a soft brush every week.
Take it off when using cleaning chemicals and doing a lot of manual work. Cut corners are sturdier than sharp points but are still the first spot to take an impact.
