What is the composition of your dental crystals and jewellery?

The composition of our dental jewellery depends on the type of product.

In other words, there is not one single composition for the entire range.

At a minimum, three main product families need to be distinguished:

• dental crystals;
• opal jewellery;
• 18K gold dental jewellery.

1. Composition of our dental crystals

Our dental crystals are lead-free.

They are made up of:

• a glass part with 15 sparkling facets;
• a reflective silver layer;
• and a satin protective layer designed to allow the crystal colour to shine through.

This structure is what creates the bright and luminous effect expected from a crystal.

2. Composition of our opal jewellery

Our opal jewellery is made of reconstituted opal stone.

Its composition includes:

• 80% silica
• and 20% resin

This composition is commonly used in jewellery to offer a good balance between:

• natural shine;
• strength;
• and durability.

3. Composition of our 18K gold dental jewellery

Our 18K gold dental jewellery is made from several metals.

The composition indicated in our document is as follows:

• gold: 76.3%
• silver: 11.5%
• copper: 11.6%
• zinc: 0.6%

This corresponds to the logic of an 18K gold alloy, with a majority of gold and a proportion of other metals completing the composition.

Why does the composition vary depending on the product?

Because a crystal, an opal, and an 18K gold dental jewel are not the same type of product.

They do not have:

• the same structure;
• the same aesthetic function;
• nor the same base materials.

That is why it is always important to think by product family, rather than looking for one single composition that would apply to the entire collection.

The easiest way to remember it

If you want a quick summary:

• dental crystals are made of a 15-facet glass part, a reflective silver layer, and a satin protective layer, and they are lead-free;
• opal jewellery is made of reconstituted opal with 80% silica and 20% resin;
• 18K gold dental jewellery is made of 76.3% gold, 11.5% silver, 11.6% copper, and 0.6% zinc.

Key takeaways

The composition of our dental jewellery depends on the type of product.

It is therefore important to distinguish between:

• dental crystals;
• opal jewellery;
• and 18K gold dental jewellery.

Each product family has its own composition, which is why there is not one single answer for the entire range.

Updated on: 21/03/2026