Buying Guide

Arabel Lebrusan uses recycled, or Fairtrade precious metals and stones sourced with transparency through the supply chain. We use recycled gold of at least 18 carats. We also use 100% recycled 925 sterling silver. All our sourced diamonds above 0.3 carats are from Canadian origin. Some of our jewellery has gold and/ or rhodium plating for durability, shine and finish.

You will find detailed descriptions of the creation process and materials used on the individual website pages for each item in our collections.

Our fine metals

What is a carat?

The word carat is derived from the Greek kerátiōn which means “fruit of the carob.” Carob seeds have traditionally been used as weights for scales because of their reputation for having a uniform weight. In the mid-16th century, the carat was adopted as a measure of gold purity, and as a measure of diamond weight from 1575.

Carat is used as a system of denoting the purity of platinum, gold and silver alloys. Because of the softness of pure gold, silver and platinum, these fine metals are usually alloyed with base metals for use in jewellery to improve hardness, colour and other properties.


Fine gold is 24 carat. Gold with lower caratage, typically 18ct or 9ct, contains higher percentages of copper, silver or other base metals. We only use 18ct gold or higher in our jewellery. We mix our fine gold with different alloys to create colours from yellow to rose and white.


In the 18th century, platinum's rarity made King Louis XV of France declare it the only metal fit for a king and since then it has remained a symbol of prestige. Platinum is 1.4 times the weight of gold and its higher density makes it very durable. It has a naturally white colour and therefore is not susceptible to tarnish.

Sterling Silver

The word "sterling" has described high-quality silver since the 13th century. Sterling silver is extremely malleable. It can be hammered into sheets so thin that it would take 100,000 to stack an inch high. It can be drawn into a wire finer than a human hair. Sterling silver is even harder than gold and can be highly polished.

Gold and rhodium plating, oxidised silver

Gold and rhodium plating is a process of depositing a thin layer of gold or rhodium onto the surface of another metal, by chemical or electrochemical method. Oxidising silver is a chemical process. Jewellery customised though these processes is susceptible to wear but if looked after correctly, the finish can last many years. 

Some of our designs are rhodium plated for a whiter or a blacker finish. We also use oxidised silver for a blackened colour.


Our diamonds and the five Cs

Diamonds are forever renowned for their superlative physical qualities. They can only be scratched by other diamonds, allowing them to hold a polish extremely well and retain their lustre.

The name diamond derives from the ancient Greek adamas, which means "invincible". Diamonds are commonly judged by the classic “four Cs”: carat, clarity, colour, and cut, as well as a new “C” for certification. All these characteristics are considered jointly when assessing the true value of a diamond.


Most diamonds are nearly colourless, with faint yellow or brown tints. The Gemmological Institute of America (GIA) has created a colour grading system for the industry.






Z +


Near Colourless

Faint yellow

Very light yellow

Light yellow


Our diamonds above 0.3 carats are always colour grade G or higher.


Clarity is measured by relative absence of characteristics such as scratches and nicks on a diamond’s surface or inclusions inside the diamond. These inclusions can be tiny diamonds or other mineral crystals which have been trapped inside the diamond as it has slowly formed through the centuries.


Internally Flawless

Very very slightly imperfect

Very slightly imperfect

Slightly imperfect







I1 I2 I3

Our diamonds above 0.3 carats are clarity grade VS or higher.


Different cuts have been developed to accentuate the natural properties of diamonds. An excellent cut diamond will reflect maximum light through its facets. The shape chosen for cutting a diamond will depend on the symmetry, shape and size of each individual rough stone. The most common shapes are brilliant, emerald, oval, princess, pear and marquise.

The cut of our diamonds depends on the style of the piece of jewellery and is detailed in our individual product description.


Carat is a measure of diamond weight. Diamonds are weighed to a thousandth (0.001) of a carat and then rounded to the nearest hundredth, or point. For example, a 1.03 ct. stone would be described as "one point and three carats." A diamond that weighs 0.83 ct. is said to weigh "eighty-three points."

The carat weight of our diamonds will depend on the individual piece of jewellery and is always clearly listed in the product description.

The image below shows different sizes on the same ring, so you can get an idea.



Please see "Sustainability & Mining & Fairtrade" and product descriptions for details on sourcing.

Other stones

Our other precious and semi- precious stones are being sourced when we find acceptable sources, as our range increases we will update you. We are working really hard to find some responsible sources for the stones that you love.