Diamond Education


In terms of color, we speak of the natural coloring of white diamonds. Most diamonds have a yellowish tint. The closer a diamond is to colorless (D), the more valuable and rare it is.


Theuppermost color grades D, E and F form the range known as colorless. The price differences are particularly significant in these top color grades. It is therefore important when making such a purchase to always consider whether the massive surcharge for a better color grade is worth it, as the difference is hardly visible to the naked eye when set in jewelry from above. Diamonds are always graded laterally in their color.

The other color grades G, H, I and J form the range known as near color less. Especially if the diamond is set in yellow gold or rose gold, a diamond of this color grade is recommended.

Our jewelry experts at GISELLE are always there for you. Of course you are welcome to visit us in our GISELLE Boutique in Zurich without any obligation.

Question Giselle


Generally, the color of a diamond is the second most important factor, as it directly affects the appearance of the diamond. In my eyes, it is important to weigh what the customer wants in each individual case. To the untrained layman's eye, almost all diamonds appear colorless, but in fact almost all have a slight yellow tint. If you don't know what to buy, a rule of thumb says you'll do well with a "G." You tend to have to go up/down two shades to see a difference.

Cut (Cut)

The biggest and most important factor in the appearance and sparkle of a diamond. Besides the different types of cuts, the cut especially means how the light is refracted in the diamond.


The carat refers to the weight of a diamond. Not, as many mistakenly think, the size.


Clarity refers to the number, size, type and position of natural inclusions in the diamond. Different inclusions are rated differently, as not all are equally visible.


There is no right or wrong here. It depends on the wearer.

Most of our customers are attracted to 1ct-2ct (visually). But there are also ladies who prefer a large size from 3ct, or the complete opposite, ladies who want a small mini stone (about 0.05ct).

If you have no idea what your beloved wants, then I recommend you to buy a diamond from 0.50ct to 1ct. Even with petite women this does not look too big and should the woman want a bigger look, you could do a so called upgrading.

Diamonds are measured in carats. One carat is equal to 0.20 grams.

For a medium budget we recommend as a good standard quality color G/H and Si1.

For white gold & platinum, choose G in any case. For rose gold and yellow gold, an H is also quite legitimate, as the stone takes on a certain yellow tint due to the alloy anyway.

With Si1, you can expect an "eye-clean" diamond. The inclusions are especially visible under a magnifying glass.
However, we do not recommend going below Si1. The inclusions can be visible to the naked eye and can severely diminish the sparkle.

You want to buy an engagement ring, wedding ring or jewelry with installment? We will be very happy to help you fulfill your wishes. The service is handled by a third party, Heidipay. Up to 10k (absolutely without interest) can be obtained in up to 12 installments.

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Diamond Lounge

a place full of beauty and elegance. We invite you to visit us to discover our unique jewelry and choose from our exquisite diamonds and gemstones. Enjoy a personalized consultation, tailored to your needs by one of our experienced experts.

Treat yourself to some time out and immerse yourself in the magical world of the treasures of this earth. Our Diamond Lounge offers you the perfect environment to relax and admire the exquisite craftsmanship of our designs.

We recommend making an appointment in advance to ensure we can provide you with the best possible experience without the wait.