
A Guide to Diamond Cut.
“Of the four characteristics, cut is the one shaped entirely by the hand of the master — the choreography of light, written in stone.”
The cut of a diamond is paramount in revealing its inner brilliance and fire. Beyond mere shape, it encompasses the precise artistry of proportions, symmetry and polish that dictate how light moves within the stone — entering, reflecting from facet to facet, and returning to the eye as brilliance, fire and scintillation.
Of all the diamond's qualities, cut is the only one entirely shaped by the human hand. A degree's misalignment can quiet a stone; a faultless cut can lift it into radiance.
The architecture of light.
From excellent, downward.
A vocabulary of silhouettes.
Round Brilliant
The pinnacle of brilliance — 57 facets engineered to return the fullest play of light.
Oval
An elongating silhouette that flatters the hand with quiet elegance.
Emerald
A step-cut of architectural restraint, revealing clarity in long, mirrored facets.
Cushion
Soft corners and chandelier-like fire — at once antique and modern.
Pear
A teardrop of motion, drawing the eye along its tapered point.
Marquise
A storied silhouette, prized for the length it lends the finger.

Cut to reveal a stone's truest light.
We select only diamonds that exemplify superior cut quality.
Whether the timeless allure of a round brilliant or the refined elegance of an emerald cut, each piece is chosen so that it radiates with the fullest possible play of light — proportion meeting polish, symmetry meeting intent.

See the difference, in person.
The mastery of cut is most fully understood under daylight, in the hand. Arrange a private appointment with a Giuliana adviser to experience it for yourself.