The same carbon crystal. The same hardness. The same fire and brilliance as a mined stone, identical in every way a gemologist can measure.
What is The 2N Graded Premium Lab Grown Diamond?
Before a stone carries the 2N Graded name, we examine it by hand under the loupe, and if an inclusion is visible to the eye, it is turned away. We then judge its cut and brilliance, and keep only stones with Excellent polish and symmetry, graded Ideal for cut wherever a cut grade applies. Each one is IGI certified and arrives with its report. Only the top 30% pass, and we turn away the other 70%.
Your piece is delivered with its IGI report card.
Bench made in New York by our Master Artisans, with new gold only, never melted down or recast. Delivered in 10–14 days.
Promontorio Supremo
Men's 14K Yellow Gold Lab Grown Diamond Ring
StonePrincess Cut, The 2N Graded Premium Lab Grown Diamond- US 7
- US 7.5
- US 8
- US 8.5
- US 9
- US 9.5
- US 10
- US 10.5
- US 11
- US 11.5
- US 12
- US 12.5
- US 13
- US 13.5
- US 14
The Story of Promontorio Supremo
A quiet harbour town at the turn of the tide, the boats swinging slow on their moorings. Rope creaks, the air smells of tar and brine, and the gulls hush. Cast in 14K Yellow Gold, its princess-cut 2N Graded Premium Lab Grown Diamond glows on your hand as the lamps along the quay shimmer on the water.
“Happiness, set in gold, travels well.”