Every jewel sold on this online shop will be shipped with a quality certificate, which attests its authenticity and features, most of all as regards to:

  • the metal
  • the type of gemstones, their carat weight and cut.

This certification is compulsory for every jewel sold on the Italian territory.

Gioielli di Valenza certification

As we are jewelers and producers of our creations, we are able to issue our own certificate for our jewels. 

This certificate is issued for every jewel sold in our online shop and attests the following features:

  • diamond color, clarity, carat and cut (4C);
  • cut and carat weight of gemstones ( rubies, sapphires, aquamarine, topazes, black diamonds, emeralds and tanzanites);
  • gold (750%) and weight in grams.

The jewels will be shipped with an elegant packaging containing the certification in the form of a little book: this certification’s format has been designed so that the recipient could immediately recognize the jewel’s features. 

Every jewel purchased on our online store or in our shops will have our certification.


In addition to our certificate we are able to provide the jewels with a carat weight greater than 0,30 ct with IGI, GIA or HRD certifications, which are issued by accredited international gemological institutes. 

These certifications give a precise evaluation of the mass (weight), clarity, color and cut of diamonds according to strict international standards.

In our online shop you can purchase jewels in white gold 18k with a maximum of 5 certified diamonds, such as:

  • solitaires
  • trilogy rings
  • white gold 18k ring with diamonds
  • diamonds earrings
  • necklaces with diamond pendants

Our certificate attests the authenticity and the quality of the jewels, but if you would like to own an internationally recognized certification, you should go for the IGI/GIA/HRD certificates. 

We inform you that the manufacturing of jewels with certified gemstones can take more time than the standard one and therefore, can cause a little bit of delay on delivery.

Gold alloy

On our online shop we sell just jewels in 18k gold (AU750), a type of alloy higher than others sold in many other online shops, such as AU375 or 585.

To determine or verify the quality and the karats of the alloy, you can simply use a magnifying glass to verify the presence of the gold mark and the number 750 on the jewel.

Do you have any questions about our certifications?

If you have questions about our certifications, please send an email to: [email protected]

Gioielli di Valenza takes care of its customers
Free shipping

Free, insured delivery, anywhere, anytime!


The fast shipping service offered by Gioielli di Valenza.

Money back guarantee

You have 30 days after your purchase to return your items.

Customer care

Try the FAQ page
or call +39 0131 530255
Monday to Friday 09:00 - 18:00

Free engraving

You can customize your jewellery for free.

Gift wrapping

Your order will be carefully prepared and delivered in our elegant gift box.

Safe Payment Methods

On our online store it is possible to pay safely by credit card, with PayPal or by bank transfer.

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