IGI-certified. SEEPZ direct. $580–$980 vs $4,500–$7,000 for the natural equivalent.
Price Comparison — Radiant Cut 1 Carat
Save 75–92% vs the natural equivalent. Same optical and chemical properties — different origin.
The radiant cut marries the step-cut elegance of an emerald with the brilliant faceting of a round — giving you significant sparkle in a rectangular package. Radiants are cropped-corner rectangles that look bold in solitaire settings and stunning under halo treatment.
One carat is the most searched diamond weight globally — it hits a psychological threshold where the stone is unambiguously significant. A 1ct lab-grown at StudsDirect runs $580–$980 depending on shape, cut, and clarity — versus $4,500–$7,000 for an equivalent natural diamond at retail.
A 1ct round brilliant is approximately 6.5mm diameter — clearly present in all settings, photographs beautifully, and reads as the classic engagement ring weight.
Radiants mask color well due to their brilliant faceting. H–I faces up near-colorless in white settings. One of the more forgiving shapes on color.
VS2 is reliable. The crushed-ice faceting pattern hides inclusions extremely well — even SI1 can be eye-clean if the inclusion is table-edge.
Four-prong with cropped corners is standard — never use pointed prongs on radiant corners. Elongated radiants (1.30–1.40 length-to-width ratio) give a similar finger-flattering effect to oval at a different price point.
The 1ct size works on all hand sizes. On smaller hands (size 4–5), it reads as a statement piece. On larger hands, it reads as refined.
"Every radiant diamond we carry goes through the same QC process I applied when grading for export clients at SEEPZ. The cut grade isn't a box to check — it's the difference between a stone that looks alive and one that sits flat. For the 1 Carat radiant, I look specifically at the table percentage and crown angle. We don't carry stones that don't meet that standard."
IGI certified. SEEPZ direct sourcing. Free shipping on all orders.
Our complete framework for buying lab-grown diamonds — cut scores, what retailers don't tell you, and how to avoid the markup traps.