OG Diamonds is a state-certified gemology specialist team for the valuation and purchase of your diamonds, rubies and sapphires and other precious stones.
With 30 years of experience as expert gemologists located in the heart of Paris, we make sure to welcome you in our Parisian offices to advise you and share our passion for jewelry and gemology by offering you free appraisals and estimates at the best market prices.
We study at the request of the owners all forms of diamonds: the round diamond, the princess diamond, the emerald, the diamond pear or the oval and radiant diamond, the diamond of asscher shape, the diamonds cut cushion, or of heart and also the marquise diamond.
The estimate at Diamantaires OG is perfectly free, without commitment and in all confidentiality.
Do you have questions about our jewelry buying services? Looking for information that you can not find on our site? You want to make an appointment for an expertise or an estimate of your jewelry?
For any questions we invite you to exchange with our expert gemologists by phone at 01 48 87 81 44 or via our Contact form.
You can also write to us by e-mail about our antique jewelry repurchase service on the e-mail address [email protected]
A team of expert gemologists, state graduates, welcome you from Monday to Friday, from 10h to 13h and from 14h to 19h.
Our seriousness and our know-how are important quality guarantees for us and for our future customers.
Trust our professionalism and entrust us with your most valuable possessions.
At Diamantaires OG, we buy both contemporary and vintage second-hand jewelry. In all confidentiality we will advise you and estimate the value of your used jewelry.
situated 43 rue Beaubourg in the 3rd arrondissement of Paris, Diamond-OG is a prestigious diamond sign. Our slogan "Expertise is in essence our main vocation" underlines our attitude of respect for the customer and for his product by the look and the listening of our diamond expert gemologists. The confidentiality and the respect of the rules of the diamond tradition are also an integral part of our essence.
All your jewelry expertise requests are entirely anonymous. We never reveal any personal information about you.
Our website Diamantaire-Paris is encrypted (SSL) to ensure your security throughout your navigation on our site.