The diamond guide

How to read a diamond, how large it will look, and the standard every Ocera stone is held to.

Size on the hand

Choose a shape and a carat weight to see roughly how large the stone will sit on the finger.

Drawn to scale on an average finger. Sizes are approximate; a stone's cut changes how large it looks.

The shape

Carat weight 1.00 ct

Carat is weight, not size. Two stones of the same weight can measure differently depending on how they are cut. Try it in the design studio

Cut

The work of the hand: how well the facets return light. It decides a diamond's fire and brightness more than any other factor.

Color

Graded from D, colorless, downward. Ready-to-wear Ocera diamonds are G to H: bright white to the eye.

Clarity

The absence of inclusions. Ready-to-wear stones are SI1 to SI2, eye-clean. Bespoke center stones begin at VS.

Carat

Weight, not size. Shape and cut decide how large a stone looks on the hand.

Collection	Color	Clarity	In practice
Ready-to-wear	G to H	SI1 to SI2	Brilliant, radiant, eye-clean white light performance.
Premier lines and bespoke center stones	Selected with your concierge	VS and above	Every center stone is certified and eligible for the Lifetime Upgrade Policy.
High jewelry and on request	Selected with your concierge	VVS to flawless	Sourced directly for the piece.

Every shape is available in both origins, and every one can be set in any Ocera design.

The brilliant: the most light, the most fire.

Elongates the hand, with brilliant fire.

Part round, part marquise: a teardrop.

Step-cut planes, a hall of mirrors.

Pointed ends, the largest face for its weight.

Soft corners, an antique glow.

Square, sharp and brilliant.

Cut corners with brilliant faceting.

A square step cut with deep, concentric planes.

The most sentimental of shapes.

Ancient Star, natural. Human Star, lab-grown. Either can be chosen for any Ocera piece, and both are held to the same standard.