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LUMI BY SANDLAU The new diamond collection

A world of Jewelry

“As I began my journey into the world of jewelry, I immediately fell in love with the entire process... from picking out delicate gems to creating glamorous and stunning jewelry. A sudden inexhaustible creative resource - I instantly discovered my passion”.

- Julie Sandlau

Our Materials

Exclusive gemstones

One of Julie Sandlau's strengths has always been her sense of selecting beautiful gems and crystals and bringing them to life in elegant jewelry.

Our moonstones are carefully chosen and are matched in pairs for each piece of jewelry. The moonstone is said to have a magical moon connection; it is often used as an amulet for travelers and is symbolic of love and wisdom. The moonstone is available in a wide range of colors and has an incredibly beautiful sheen. You can see how the stone shines from within.

Freshwater Pearls

The pearls used in our collections are natural freshwater pearls that come from freshwater mussels. The pearls come in various shapes - oval, round, rice-shaped, and teardrop. They are available in gorgeous, natural colors such as white, grey, pink, lavender, and peach.

Freshwater mussels can live up to 150 years, and a regular-sized freshwater pearl often spends 5-7 years inside the mussel. Our pearls are AAA quality, part of the top 5% of all pearls harvested a year. It is important to remember that the pearls are naturally made and therefore may vary in shape, color, and size. At the factory, the pearls are matched in pairs for each piece of jewelry.

Certified Diamonds

All of our diamonds are certified with “The Kimberley Certificate of Origin". This certification, developed by the United Nations Global Compact (UNGC), guarantees that the diamonds are not mined from conflict zones.

Diamonds are valued by "the 4 C’s”:


The weight of the diamond is called a carat.


The diamond’s clarity describes if the diamond has small inclusions. Our Diamonds are certified with SI - Slight Inclusion.


Most diamonds are yellow or brown, whereas clear diamonds are rarer and more desirable. The color of the diamond is evaluated on a scale from D (exceptional white +) to S-Z (tinted color). Our diamonds are classified as Top Wesselton, which means Rare White +.


A diamond’s cut is very important and determines how much light and brilliance is seen in the diamond, this is what brings beauty to the diamond. If the cut is too low, the light will disappear from the bottom of the diamond, and if the cut is too deep the light will also disappear. The perfect cut with the right proportions will make the light reflect through the top of the diamond, which is called the “Table”. It is this beautiful shine and light that characterizes a real diamond.

Recycled precious metals

We make our jewelry in rhodium or 22-carat gold plated recycled 925 Sterling Silver and our Fine Jewelry is made in 18-carat gold and white gold. Our 18-carat gold is stamped 750, which indicates that the jewelry contains 75% gold.

We exclusively use recycled gold and silver. Instead of extracting new gold, by using recycled gold and silver, we are able to recover precious metals and give them an eternal life.

Bespoke Jewelry

Into every girls life a little diamond should fall

- Elizabeth Taylor

Bespoke Jewelry - Uniquely Yours


Do you have any special wishes when it comes to your jewelry? We design Bespoke Jewelry for both men and women in gold, white gold, and diamonds.

Whether it is an engagement ring, Name Tag necklace, a personal engraving, or something else you are dreaming about, you are always welcome to contact us to see if we can create your dream pieces.

Discover our new collection


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