The Materials
The materials
It all begins with the materials
A Les Lulú jewel is made with the care of high jewelry: the same attention in the choice of materials, the same eye in the selection of stones, the same precision in the craftsmanship. With one more freedom: that of wearing it every day.
01 · The silver
925 sterling silver
The base of every Les Lulú creation is 925 sterling silver, the highest standard in silver jewelry. The number tells its quality: 92.5% pure silver, joined by a small part of alloy that gives structure and strength. It is the same base the great maisons choose for their collections.
02 · The gold
18-karat gold and PVD technology
A layer of 18-karat gold is applied to the silver using PVD technology — Physical Vapor Deposition. In a vacuum chamber, at high temperature, the gold is vaporized and bonds to the silver atom by atom, forming a compact, uniform coating.
To complete the plating, a final veil of e-coating — a transparent protective layer applied electrochemically — wraps the jewel and strengthens its resistance to scratches, perspiration and the small gestures of daily life, preserving its color and brilliance for a long time.
The difference shows over time: the layer withstands everyday wear and keeps the jewel’s color and brilliance for years. And the tone is a precise choice: a warm gold that flatters every skin tone, from the fairest to the deepest. It is the gold of everyday life.
925 sterling silver · 18-karat gold applied by PVD · Protective e-coating finish · Hypoallergenic · Compliant with EN 1811 on nickel release
03 · The 9K gold
9-karat gold
The karat measures the purity of gold: pure gold is 24 karats. A 9-karat alloy contains 375 thousandths of gold — the 375 fineness hallmarked on the jewelry — joined by noble metals that give it hardness, resistance and a warm, discreet color.
It is gold through the entire thickness of the jewel, solid and luminous: an alloy prized in jewelry precisely because it unites preciousness and strength, and it is suited to everyday wear.
9-karat gold · 375‰ fineness · Solid alloy through the entire thickness
04 · The stones
Natural gemstones, chosen one by one
The colored stones in Les Lulú jewelry are natural, hand-selected with the same critical eye with which the Broggian family has chosen gems for sixty years. Each one is chosen for the light, the hue and the character it carries. A natural stone is always different from every other: in this, every jewel is one of a kind.
The world of stones
05 · The diamonds
Lab-grown diamonds
A diamond is pure carbon, arranged in the densest crystal structure found in nature: this is what makes it the hardest material known, and what gives it its brilliance and its endurance. In nature it forms one hundred and fifty kilometers underground, over immense stretches of time. In the laboratory it forms under the very same conditions, recreated, in a few weeks.
The result is the same diamond: same structure, same hardness, same light, same grading parameters — color, clarity, cut and carat. Les Lulú chooses it with conviction: equal in beauty and in value, it comes from a path more respectful of the environment.
Lab-grown diamonds · Identical in physical and chemical properties to mined diamonds
The choices
Behind every jewel
Selected materials. Gems and metals chosen with the method the Broggian family has refined over sixty years: provenance and quality are the starting point of every creation.
Respect for the work. Behind every jewel there are expert hands and work done with ethics, respecting the people and the rules that protect those who create. A jewel is truly beautiful when it is made well through and through.
Made to last. Materials that travel through the years, a repair service that gives new life, a beauty meant to be handed down.
Beauty made with care is the Les Lulú rule.
Sustainability