Gold in Our Jewellery

At Montse Esteve, we use only high-quality 18k gold in all of our jewellery, available in yellow, white, and rose gold. Each type of gold is known for its durability and elegant finish.

All of our gold is ethically sourced and meets strict standards for quality and sustainability. Our 18k gold is verified by our workshop, certified and stamped by the Jorg official laboratory (Col·legi de Joiers de Catalunya), and bears the official Montse Esteve stamp. Every piece undergoes rigorous quality control to ensure it meets the highest standards of craftsmanship and authenticity.

 

Diamonds

Each diamond is one of a kind.

The 4Cs have become the accepted standard for determining diamond quality across the industry. They offer the clearest method to understand your diamond and ensure its unique qualities are evaluated with precision.

While selecting a diamond is a deeply personal choice, its evaluation must always be precise.  We will assist you in finding the finest diamonds that are even more extraordinary.

Even though the 4Cs assist in evaluating diamonds, it’s the trained eye of a Montse Esteve expert that makes the right choice.

 

Diamond Color

White diamonds are rated from D (colorless) to Z (light yellow).

But diamonds also come in a wide range of colors, from completely colorless to shades of yellow, pink, gray, brown, green and nearly any color.

Even the slightest variation in color, can significantly impact a diamond’s quality and its price. That is why it requires professional expertise.

 

Diamond Clarity:

It is formed deep within the earth under intense heat and pressure, making it common for them to have natural imperfections. These imperfections, known as clarity characteristics, develop when small crystals get trapped inside the diamond.

The clarity of a diamond is determined by the size, number, location, and visibility of these imperfections.

 

Diamond Cut:

A diamond’s cut refers to how it interacts with light.

The cut is different from the shape. Shape refers to the diamond’s outline (like oval or heart), while the cut focuses on the arrangement of its facets.

Only round brilliant diamonds get specific cut grades because their facets are standardized. All other shapes, like pear or marquise, are considered fancy shapes.

 

Diamond Carat Weight:

Carat measures a diamond’s weight, not its size. One carat equals 200 milligrams, and it’s split into 100 points for very precise measurement.

The term "carat" dates back to the 1500s, when traders used carob seeds as a consistent weight for balancing their scales. Today, carat is a standard measurement used worldwide.