The difference between the shape and size of a stone

The art of cutting and polishing stones into different shapes dates back to a very distant past. And it is through this complex craftsmanship that our precious and semi-precious minerals acquire their enhanced shine and color. The lapidary must take into account several parameters and make use of his expertise in mineralogy when choosing the size and the polishing method. It is also important for him to know how to distinguish between the concepts of shape and size which tend to be confused in common language. In this article, we will therefore highlight this difference by presenting you with common and exotic shapes and sizes. What is Amazonite? Benefits, Properties, Colors

The difference between shape and size

In jewelry, shape refers to that which is observable by looking at the stone from above. This is one of the most important criteria in the selection of a jewel.

difference between shape and size

The size refers to the way the surface of the stone has been shaped. It is thus defined by the number and the angular positioning of the facets. The size also influences the intensity of the shine when the stone is exposed to light. This subject has been further developed in an additional article that we invite you to read.

Shape and size therefore inevitably differ, although one cannot exist without the other. Let’s illustrate this by taking the example of the round shape. This can be obtained from cabochon, brilliant or rose cut. We thus see that although distinct, each size makes it possible to express the pattern of a sphere. The cabochon achieves this with its smooth, convex curve, while the brilliant and the rosette achieve the same result with their clearly defined facets. Therefore, it is possible to see this relationship that size always generates a unique shape, but not the other way around. How to Create an Awesome Gift Tag

The different shapes of stones

The most common shapes are round, oval, pear, marquise, heart, square (or princess ), square or rectangular cushion, square, square or rectangular octagon, rectangle, triangle, and the trillion. All are commonly used on diamonds, so let’s take a closer look. What is the difference between USB-A and USB-C connections

The round shape

The first representative of the round shape is the brilliant cut diamond. Although the origins of the brilliant go back to the 17th century, it was reintroduced and popularized in its current form by the mathematician Marcel Tolkowsky in 1919. The latter defined the proportions and angles necessary to obtain the greatest brilliance of the stone, also called inner fire. Another article describes this pruning in more depth. Another shape-compatible size is the rose. Dating back to Antiquity, this cut was rediscovered in the Middle Ages, and its curved crown (= upper part of a cut stone) consists of an arrangement of triangles forming a six-pointed star.

The round shape

The oval shape

The oval shape has a great advantage. Gemstone cutters can use it to optimize carat weight because it appears bulkier than a round cut stone of the same weight. It is often chosen for the center stones of rings because it can visually lengthen and slim the fingers. The oval cut usually has 58 facets.

The oval shape

The cushion shape

This is either a square or a rectangle with rounded edges and corners. It can have large facets to divide white light into a color spectrum. The so-called cushion cut also allows more light to enter the stone and hides certain imperfections.

The cushion shape

The pear shape

The pear shape is achieved by the size of the same name which is characterized by the femininity of its architecture. Some stones are cut in a variation of the pear cut, commonly called the French tip. This consists of adding small facets that replace a larger one at the end of the “pear”. These facets sometimes tend to cause the bow-tie effect, i.e. a small shadow area in the stone which is similar to the outline of the fashion accessory. The effect is also observable in marquise and oval cut stones and can be mitigated by the hands of an experienced lapidary. We particularly appreciate this shape when it is set on a necklace.

The pear shape

Another cut corresponding to this shape is the briolette which has its origins in India. It is a cut imitating the pear by its faceted periphery. It is particularly suitable for a necklace or earrings allowing it to hang freely. The briolette generally comes in 84 facets. Black Diamond: Properties, Carat, Colour, Sizes & Shapes

The marquise shape

The marquise shape is not very widespread and that makes all its charm. It is directly connected to the so-called marquise size which is also compatible with the famous French tip. Some consider this cut an elongated, pointed variant of the brilliant cut. It typically comes in 57 or 58 facets.

The marquise shape

The square shape

The square is a shape that allows very interesting sizes. This is the most natural shape for a diamond, due to the crystal structure of the latter and despite the fact that it can sometimes represent a certain challenge for the lapidary. The most popular variant of this shape is the princess cut, which is an adaptation of the brilliant cut in a square format.

The square shape

It generally has 58 facets. The princess is the heir to the Barion cut which is distinguished by its use of triangular facets. The patenting of the Barion cut by the diamond dealer Basil Watermeyer prevented its modernization for many years. It was not until the expiry of the patent that the princess cut could be introduced to the general public and its popularity on engagement and wedding rings only grew. The main feature of the princess is its strong luminosity and pronounced inner fire. What’s more, it conceals small imperfections and reduces yellow tones. Sufficient stone depth is required to use this size. 10 animated name ideas for your bazaar, flea market or flea market

The heart shape

The heart is a romantic form that can say everything. Combined with the French point, its heart cut (56 to 59 facets) improves the quality of its luster. The lapidary will be able to opt for this variant when the weight of the stone must be preserved or when minor internal imperfections must be removed from a larger surface. The heart can be broad or narrow, with obtuse or more acute angles, and its depth can also vary. It all depends on the chosen guideline. Optical properties can also fluctuate, requiring a skillful balancing of form, vibrancy, and color saturation.

The heart shape

The octagonal shape

The octagon is another interesting shape that can be declined in a square or rectangle. The best-known cut of this shape is none other than the emerald, which was one of the first to be used in jewelry. And as its name suggests, this cut is particularly suitable for precious emeralds.

The octagonal shape

Another cut to achieve the octagon is radiant, which combines the best of princess and emerald finery. The Asscher cut is also well known for its optical properties and its exceptional prismatic luminosity.

The baguette shape

The wand is ideal for flat and elongated stones in their raw state. It is expressed by the size of the same name and the latter is structured in 14 facets, for a minimal loss of the initial mass of the mineral. On the other hand, it does not stand out so much for its brilliance and can give a glassy visual rendering. Thus, this size is mainly used for the “secondary” gems of a jewel. Finally, like all rectangular sizes, the baguette can be cut in stages.

The baguette shape

The triangular shape

The main characteristics of this figure are the excellence of its luster and its ability to reduce the visibility of possible inclusions in the mineral. The trillion is the best-known cut and it was invented in the 20th century from a brilliant cut. These days, this size goes perfectly with contemporary jewelry. Gems adopting this shape can be set alone or on the periphery of a central stone.

The triangular shape

The kite shape

The kite consists of a triangle with two sides flattened, forming an imperfect five-point shape. When the stone is cut, it resembles a brilliant cut when viewed from its side. It is this similarity that gives it its popularity.

The kite shape

The sizes used for KLENOTA jewelry

Our workshop mainly uses brilliant cut to set our engagement and wedding rings with diamonds that stand out. When the light penetrates the glass, the effect of refraction indeed produces a shimmer without common measure. This article explains this phenomenon in more detail.

Other more exotic sizes are also used for their optical quality, size, symmetry, and ease of crimping. All these properties together make it possible to obtain a simply remarkable jewel.

sizes used for KLENOTA jewelry

The oval shape declined with a brilliant-cut diamond, as well as the contemporary square-shaped cushion or princess cuts, make it possible to sublimate a ring. Among the rectangular cuts in our catalog, you will find the emerald (applied to earrings and pendants), but also the Asscher and the radiant. Romantic personalities will have the pleasure of discovering the heart cut which is found most of the time on a chain or earrings.

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