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online appraisals
July 2020

We updated our pricing packs to optimize the offer for all customers, small or big.

June 2020

Drop us your feedback directly on the platform by filling the form.

May 2020

🗄 Manage your digital vault by upgrading your subscription plan*: Upload more than one jewel!

*Payments are made through Stripe

💎💎 Add multiple stones to your jewelry appraisal

Online appraisal

📃 Modify your uploads & share your appraisal via PDF 

♻️ Sustainability has rightly become a hot topic in the jewelry industry. It has inspired brands to launch new initiatives, share more information with their customers, and set new targets to do better. This jewelry report is designed from the ExJewel team.

April 2020

😷 The Covid-19 crisis put the trade of jewelry and precious stones on hold. With everything happening lately, many still wonder: what is the future of the jewelry industry? So the ExJewel team decided to ask professionals and individuals their opinion. So here is what ExJewel and 350 other professionalsthink about what is going to change post-covid-19.

 ℹ️ was added to facilitate jewelry and gemstone appraisal

💍 Appraise branded jewelry from 30+ well established jewelry brands such as:

Belperron, Boucheron, Bucellati, Bulgari, Cartier, Chanel, Chaumet, Chopard, Christian Dior, David Webb, DeBeers, Faberge, Fred, Graff, Harry Winston, Hemmerle, Herms, Jacob & Co., JAR, Lalique, Louis Vuitton, Mellerio dits Mellerio, Piaget, Pomellato, René Boivin, Rene Lalique, Thierry Vendome, Tiffany & Co., Van Cleef & Arpels, Verdura & Vhernier

🤬 Edit your profile username, email and password directly from the platform

 🧼 As a special offer during April, businesses and customers can appraise their jewelry. SIGN UP FOR FREE

📱Log-in to your account on your desktop or mobile

💎 Appraise synthetic, treated & natural gemstone & diamond

March 2020: 🚀 Launching
Stephane Boghossian
The ExJewel team will be in Paris for 2 events in March:

March 19thIBM France organises The “Consommation Responsable et Innovation Technologique” event (Responsible Consumption and Technological Innovation). We will be present as one of the 8 startups innovating for a responsible supply chain.

From 8.30am to 3.30pm at IBM Client Center 

March 26th: Fashion Tech Creative Talks at WeWork (free attendance) where our start-up is one of the 4 selected  French startups innovating in the fashion and tech sector.

From 4.30pm to 7.30pm at We Work – 33 Rue Lafayette 75009, Paris, France.


We just launched 🚀 the first online #webapp able to appraise any #jewel or #gem that is based on 5.24 million data.

ExJewel offers a paid-subscription service for jewelry and precious gemstones, however the first appraisal is free of charge. 

February 2020
Crisp icon

💬 We replaced our chatbot by Crisp service to enhance experience and retrieve better customers feedback. The chat is included in our platform as well.

Crisp is the best Customer Messaging Platform for Startups & SMB’, designed by 2 french students that attended Ecole 42.

Monthly Newsletter

📮 We designed a monthly newsletter called “Ring the Bling” that our all our clients, press, potential clients will receive. We structured the newsletter to be short and brief: 

    • News on the services ExJewel propose
    • Top trends of the jewelry industry 
    • News of the jewelry industry “you might have missed”

ExJewel X Schoolab X Ecole Polytechnique


During 2 months, 6 students (Khan Shayan, Kunst Clemens, Alkan Gökçe, Joly Kimberly, You Jingmao, Chen Qiwen) from Master 2 IoT in Ecole Polytechnique will be working with the ExJewel team. They will be focusing on studying the gemstone prices (Emerald, Sapphire & Ruby) in order to standardise its pricing along our algorithm.

January 2020
Academie des metiers d'art

ExJewel X l’Academie des metiers d’art 😉

Stephane, our CEO, joins the innovation board at l’Academie des Metiers d’Art in Paris. 

December 2019

Edna Mensah joins the ExJewel Marketing team with a fresh new vision!

Experienced in Project Management and Entrepreneurship, Edna specialized in Digital Marketing. Having creating her own startup and working for others, she is driven to innovative project and everything digital transformative. Crazy about Urban Art and Culture in general, she loves Craftsmanship. Exjewel is for her the perfect project to work on : innovation at the service of craftsmanship. “When Stephane asked me to join Exjewel adventure, I said yes without even thinking twice. It’s disruptive and the sector is close to the Art world which I know well. Plus Stephane won me over with his passion for jewelry and the fact that he wants and can change the sector for the better”

Etna school team 2

ExJewel X ETNA

etna-logo-1-noirDuring the ETNA Code Camp, students will be developing API tools that our tech team will then integrate in our estimation tool.

Etna school team
Rocket school logo

ExJewel X Rocket School

During 3 weeks, the business development team welcomed 2 amazing Business Developers Nafissatou LOUM & Quentin Saurat.

November 2019

Exjewel changed his profile picture [logo]

Tony Seng

Tony Seng joins the tech team of ExJewel as an interim product owner​

After graduating from University Paris Dauphine in Computer science apply to Financial area, Tony has 7 years experience building software for banks and Fintech companies (like Natixis, BNP Arbitrage, Newegde and FundingXchange). He decided to join Exjewel because he believe that we can reshape the jewellery industry with the tech.


Yasmina Schoueri joins the ExJewel tech team as a freelance lead-developer / part-time CTO.

Switching to computer science at university, Yasmina enjoyed the logical thinking and problem solving involved in programming. She has over 8 years experience as a full stack developper, building web software for various companies. She joined the ExJewel team because she feels strongly about the concept and feels that it can help bring transparency to an otherwise convoluted process.

ionis incubateur

ExJewel @ IONIS 361​

The ExJewel team moves to IONIS 361, the IONIS group incubator program in Paris. We also got the opportunity to work on 3 projects with internal group schools such like EPITA, Rocket School & ETNA.

October 2019
Kiss Kiss Bank Bank logo
ExJewel launches its crowdfunding campaign on Kiss Kiss Bank Bank​  
September 2019
ESCP logo


A team of 6 ESCP students join the ExJewel team for 6 months!

July 2019
Stephane Boghossian

ExJewel develops its first chatbot, #TheJewelBot, as a virtual expert jeweler!

transparent exjewel logoThe chatbot is able to answer questions from digital visitors, with more than 250 questions / answers, constantly improving customer service.

startup school y combinator

ExJewel X Y Combinator​

ExJewel joins the online learning platform by Y Combinator.​

June 2019
Raphael Thierry

ExJewel welcomes its first intern, Raphael Thierry, as part of our Business Development team.

Coming from a 5th generation jeweler family, I have always been fascinated by the world of gems. With a Master in Business Development and preliminary knowledge of the business, I accompany Exjewel daily in the development of new services for individuals and professionals. My goal is to rethink the traditional and artisanal character of jewelry, in order to innovate and optimize the value chain to answer the ethical and environmental problems of the profession.

April 2019
Schoolab logo

ExJewel X Schoolab​

Schoolab incubatorGood blood cannot lie: it is certainly not a coincidence, but a logical step in Stéphane’s career to create ExJewel. This project combines his interests, his passion and his personality: a sharp creative sense, a declared passion for innovation and a particular sensitivity for the respect of the environment. The taste for entrepreneurship is finally the catalyst for ExJewel. If the Parisian environment is a first natural step, joining the Schoolab incubator is the second.

May 2019
Gaelle Seret

EXJEWEL SAS is born from the association of 2 experts in High Jewelry, passionate about digital innovation

Gaelle Seret, ex-COO et ex-co-founder: “Specialist of the ‘commodities’ market, I had been working as finance & IT project manager for several years. Passionate about jewelry. My project of conversion germinated during 2 years before I dare to launch myself. This break allowed me to be interested in the manufacturing, design and selection of raw materials. ExJewel is a project that brings my aesthetic and ecological values. It allows us to promote the work of highly skilled artisans, creative artists and unused raw materials.”

December 2018

An idea put in action in the lean startup fashion. A first customer, a first success!

“Initially, I responded to a request from Stephane to implement his original idea: give a second life to a jewel that is precious to me but that I no longer wear! More precisely a very beautiful row of pearls but become much too classic for my taste. Three weeks later, around Christmas, he surprises me and offers me, in a new staging, 4 ” new ” jewels that I do not get tired of wearing! Knowing that he has put aside some pearls waiting to come and crimp a new jewel … but I’m waiting for the opportunity to do it. “

September 2018
Stephane Boghossian

The concept of ExJewel was born

afterlife of branded jewelryThe concept of Exjewel is born from Stephane’s thesis at the IFA in Paris. The new look of the 6th generation of jewelers on an industry that is part of his family heritage. An idea, a concept waiting to be put into action.

Stephane Boghossian

STEPHANE BOGHOSSIAN, founder of EXJEWEL, is moving towards a general training of Design (NABA / Milan). Soon he is interested in jewelry and has its most noble extension, diamond and colored stones. He goes most naturally to his hometown of Antwerp, where he studies Gemmology (HRD), then goes on to Design Jewelery (GIA / USA) and pushes to Bombay (IIGJ). Paris, capital of luxury, is the culmination of its course with a Masters in Luxury Marketing (IFA).

Gerard Boghossian

An inspiration: Gerard Boghossian​

Arriving on the diamond market in Antwerp, my father had a valuable baggage: he was a Boghossian! Five generations of jewelers and a name that had been enriched, through the permanent exodus of family members, by the cultures of each host country. Gerard shared this love that brings together our family for so many generations around the jewel, precious stones, goldsmithery and the precision of the gesture well done. So it was natural that he knotted with this universe that rocked our family, the jewelry and especially the diamond, flagship stone of the Antwerp market!

Stephane Boghossian

The first generation of traditional Boghossian jewelers was born in Armenia. A business that remains 100% family to this day!

Boghossian family