Princess Diamonds


What is a Princess Diamond?

A princess diamond is a square cut with brilliant facets, also technically known as a ‘Square Modified Brilliant Cut’. Designed between the 1960s and 1980s, the princess cut as we know it is a relatively new stone. Nonetheless, it has become one of the most popular of the fancy shapes. With roots in the 14th century, the princess diamond began life as the square shaped “french cut”. When cutting and design technology allowed greater numbers and accuracy of facets, the modern princess cut got its sparkle.

How Many Facets does a Princess Diamond have?

What Makes a Princess Diamond Special?

It’s little surprise a princess diamond has become so popular, so quickly. The shape shares some of the most attractive qualities of a round brilliant cut, with facets designed for incredible sparkle. However the geometry and sharp lines of the princess create an entirely different look, providing sleek and modern style unlike almost any other cut. Other angular diamond cuts like asscher and emerald employ step cut facets, which maximise clarity rather than sparkle. The princess is set apart in combining geometry with brilliance

How do you Know if a Princess Diamond is Well Cut?

First we consider the visual impact of the stone - how does the fire, brightness, and scintillation appear? Second, the design - how well proportioned is the diamond? Finally, we look at the craftsmanship - how skillfully has the diamond been cut and polished? While princess stones are not given a formal cut grading, there are some suggested parameters for a well-cut stone, including;

Length to width ratio: The length to width ratio of a diamond measures how proportional it is. Diamonds which fall within these parameters will be most pleasing to the eye, with a more distinct and even shape. Look for a princess diamond with a length to width ratio of 1.00 to 1.03 to ensure your diamond looks perfectly square in any setting style.

Table: The table is the largest, central facet of a stone. The table needs to be large enough to let lots of light into the diamond, but not so large that the upper facets don’t have room to sparkle. Look for a princess diamond with a table ratio between 64 - 75%

Depth: A diamond’s depth is the top-to-bottom measurement of a diamond, from its table to culet. The depth ratio compares this measurement with the overall width of the stone. The depth affects the visual balance of a diamond and its brilliance. If a stone is too shallow or deep the light will not refract properly, escaping through the base of the diamond instead of the top. Look for a princess diamond with a depth ratio between 64 - 74%.

We also suggest seeking princess diamonds with a depth ratio less than or equal to the table ratio.

Choosing a Diamond Cut Grade


Choosing a Princess Diamond Colour

diamond colour guide

Choosing the Clarity of a Princess Diamond

Diamond Clarity Guide

Is a Princess Cut the Diamond for You?

You adore thoroughly modern style and love designs with a sleek and elegant geometry.  But you’re not prepared to compromise on sparkle, desiring the incomparable fire and scintillation of a brilliant cut. Whether in a minimalist solitaire or a glittering diamond-set mount, a princess diamond gives you both. Princess diamonds are also a popular choice for wedding rings, sleek and sparkling in a channel setting.