From Mine to Online: How GEMHYPE.COM is Digitising Gemstones

April 15, 2021

By Katerina Perez

7 min read

Idar-Oberstein may be best known for its traditional gemstone expertise, but for GEMHYPE.COM it is also the perfect location for growing a new kind of digital business that sells gemstones online to designers and brands. This ambitious company is creating its own sustainable, fair and modern way of selling gemstones, making the behind-the-scenes of jewellery-making a more tech-savvy place. Founders Isaline Arnoldi and Carl-Philip Arnoldi share more insights into GEMHYPE.COM and why they’re part of a new generation aligning tradition with technology.

It’s easy to forget when looking at a remarkable piece of high jewellery that each element, whether a large cabochon gem, a fancy-cut diamond or the precious metal itself, must have been sourced from somewhere. This discovery and trading process is a vital part of the jewellery journey and decisions made along the way can add to a stone’s desirability or diminish it completely. GEMHYPE.COM is a growing business, based in Idar-Oberstein, Germany, that’s taking the best practice principles of coloured gemstone sourcing and converting them to an online format.

GEMHYPE.COM is based in Idar-Oberstein, Germany, but operates as an online business

GEMHYPE.COM is based in Idar-Oberstein, Germany, but operates as an online business

 The GEMHYPE.COM team prepares a parcel of gemstones to be delivered to a customer

The GEMHYPE.COM team prepares a parcel of gemstones to be delivered to a customer

Siblings Isaline Arnoldi and Carl-Philip Arnoldi, who grew up in the city, channelled their specialisms in communications and business management respectively into GEMHYPE.COM, which opened its digital doors in April 2020. Since then, they’ve used their family history in the gem trade and new skills to build an independent operation, selling aquamarines, tourmalines, garnets, spinels, amethysts and beryls, among others. To find out more, I spoke to both Isaline and Carl-Philip and asked them to share the story behind GEMHYPE.COM.

GEMHYPE.COM opened its digital doors in April 2020

GEMHYPE.COM opened its digital doors in April 2020

Katerina Perez: Your family has a long history in the gem trade and owns HC Arnoldi, which was established in 1919. How has this influenced you?

Isaline Arnoldi: We have always had the desire to be independent, which is why we decided to launch the GEMHYPE.COM platform. We belong to a new generation and want to do things our way and add this to the models created by previous generations. We are a modern, digital business and that allows us to make faster decisions and operate sustainably. With the knowledge and support of our parent company, we have the perfect mix of tradition and innovation.

A 4.6 carat aquamarine from the GEMHYPE.COM online inventory

A 4.6 carat aquamarine from the GEMHYPE.COM online inventory

 A pair of tourmalines totalling 13.80 carats from the GEMHYPE.COM online inventory

A pair of tourmalines totalling 13.80 carats from the GEMHYPE.COM online inventory

 GEMHYPE.COM specialises in coloured gemstones, such as this green tourmaline

GEMHYPE.COM specialises in coloured gemstones, such as this green tourmaline

 An oval-shaped tourmaline that can be purchased online via GEMHYPE.COM

An oval-shaped tourmaline that can be purchased online via GEMHYPE.COM

KP: What are some of the core principles that GEMHYPE.COM operates by?

Carl-Philip Arnoldi: We believe in transparent communication with our customers, particularly in regard to the origin of our gemstones and the type of treatments they have received. We are focused on sustainability and use plastic-free, eco-friendly packaging as well as fairness and social responsibility. We feel connected to our partner countries through the gemstone trade. In fact, we are supporting two young adults from Arusha, Tanzania, who are starting their own businesses with a start-up sponsoring. This is organised by the NGO Partnerschaft für Afrika e.V.

GEMHYPE.COM co-founders and siblings Isaline Arnoldi and Carl-Philip Arnoldi

GEMHYPE.COM co-founders and siblings Isaline Arnoldi and Carl-Philip Arnoldi

KP: Do you think gemstone buyers are more interested in the origin of gemstones now than they were a few years ago? How do you ensure origin is communicated to your customers?

IA: We do our best to work fairly, which means working with conflict-free gemstones. We know it is very difficult in our business to be 100% sure from which exact location gemstones are from, even though we buy directly from mines certain stones can be exchanged. We really do our best to ensure the supply chain and, therefore, we don’t work with stones from conflict regions, like Pakistan and Afghanistan, or partner with people we don’t know.

CPA: Growing and maintaining a transparent and truthful relationship with our customers always comes first, which is why we provide all the information about our products from the very beginning on the GEMHYPE.COM website.

The GEMHYPE.COM website allows designers and brands to search for the gems they need with all the important information at their disposal

The GEMHYPE.COM website allows designers and brands to search for the gems they need with all the important information at their disposal

KP: What’s it like being siblings who work together?

CPA: It’s not just about being business partners… we also have full trust in one another. This keeps lots of worries away and makes everything much easier. Obviously, it is normal that we sometimes have different points of view, but we discuss them and understand our individual strengths and weaknesses. Most importantly, we are focused on achieving the same goal.

Designer brands and jewellery designers can log in to their GEMHYPE.COM account to buy coloured gemstones online

Designer brands and jewellery designers can log in to their GEMHYPE.COM account to buy coloured gemstones online

 GEMHYPE.COM offers matching pairs of gemstones that are ideally suited for jewellery creations

GEMHYPE.COM offers matching pairs of gemstones that are ideally suited for jewellery creations

 GEMHYPE.COM is a B2B service, but the team does receive enquiries from private customers

GEMHYPE.COM is a B2B service, but the team does receive enquiries from private customers

 Every gemstone listed on the GEMHYPE.COM platform is explained in detail, including its point of origin

Every gemstone listed on the GEMHYPE.COM platform is explained in detail, including its point of origin

 GEMHYPE.COM can source specific gemstones for its customers and offer a tailor-made service

GEMHYPE.COM can source specific gemstones for its customers and offer a tailor-made service

KP: Do you think more jewellery designers and brands will start buying gemstones for their pieces online now because of COVID-19? How can we make sure this is safe and secure for everyone, including the person who ends up with the gem in their jewellery box?

IA: This situation has certainly led most people to buy almost everything online and for this reason, it is important to adapt. What our customers point out to us is that, in our industry, B2B online stores are practically non-existent, which makes us quite unique at the moment. Obviously, it can be quite difficult to convince oneself to buy a precious gemstone online: there is a feeling and an expectation of being able to see a gemstone with one’s own eye. The touch and the colour of a gemstone could also be completely different in-person to what’s online. For this reason, it is essential to have professional photos and videos, which, most of the time, allow us to make a final decision.

CPA: Our online store has been described as modern, clear and understandable and at the same time rich in information. One customer told us that after seeing our website, they realised the gemstone industry was in “urgent need of a refresh”!

Isaline Arnoldi, one of the co-founders of GEMHYPE.COM, holds a cushion-shaped tanzanite

Isaline Arnoldi, one of the co-founders of GEMHYPE.COM, holds a cushion-shaped tanzanite

KP: Finally, do you have any plans to take your B2B business direct to jewellery lovers who might want to buy a gemstone for their personal collections?

CPA: Our plan for the future is to be a strong, trustful and digital business for jewellery creators and designers. We do, however, receive many private requests and we use our contacts to try and connect the final customer with the right goldsmith or designer for them. For us, this is a win-win situation for both the jeweller and the final customer.

This 3.75 carat spinel and 3.68 carat tsavorite garnet are examples of the gemstones available via GEMHYPE.COM

This 3.75 carat spinel and 3.68 carat tsavorite garnet are examples of the gemstones available via GEMHYPE.COM

 GEMHYPE.COM specialises in a range of coloured gemstones, such as this 4.45 carat rubellite tourmaline

GEMHYPE.COM specialises in a range of coloured gemstones, such as this 4.45 carat rubellite tourmaline

According to the GEMHYPE.COM website, they offer a transparent online service for the purchase of gemstones 24 hours a day, seven days a week and 365 days per year. Can the spirit of e-commerce work for fine gemstones? If anyone can find out, it is GEMHYPE.COM.

Astteria: These Fancy Coloured Diamond Jewels are a Brilliant Investment

continue reading

Haute Couture 2025: Boucheron Explores Shades of Grey with the Impermanence High Jewellery Collection 

With its Carte Blanche High Jewellery collections, Boucheron's Creative Director Claire Choisne has the power to explore whatever fantastical avenue she pleases, which in 2025 centres on flowers and the natural world.

by Sarah Jordan

Haute Couture 2025: The Unconventional Lines of the Vhernier Ardis High Jewellery Collection 

Let's take a closer look at the pieces that launched at Paris Haute Couture week, including the sculptural necklaces we simply couldn't leave without photographing.

by Sarah Jordan

Haute Couture 2025: The 70s Depths of the Piaget Shapes of Extraleganza High Jewellery Collection

Through the Piaget Society, a circle of artists, collectors and freethinkers, the Maison helped shape the cultural zeitgeist of the 1970s.

by Claire Roberts

Haute Couture Week 2025: The Gentle Flutter of Mikimoto Les Pétales High Jewellery

Let’s take a closer look at some of the aristocratic highlights of this latest Mikimoto offering…

by Sarah Jordan

Elevated Expression: Examining The Jade Dynasty Collection by Austy Lee

Austy Lee is someone we return to time and again here at KaterinaPerez.com, largely because the designer's work never fails to impress. Let's hear what he has to say on China's most emblematic mineral…

by Sarah Jordan

Haute Couture 2025: The Biggest High Jewellery Trends to Emerge from Paris 

Transformability was a recurring theme, as were bold uses of colour, sculptural silhouettes and rare gemstones with compelling stories. Here are the key trends that defined the 2025 high jewellery season.

by Joshua Hendren

Flower Power: The Uplifting Energy of Jewels in Full Bloom 

Florals have long been a favourite in fine jewellery, and they never lose their charm. This year’s Couture show in Las Vegas proved just how inventive floral jewellery can be, bursting with colour, craftsmanship, and imagination

by Hirshi Sujanti

You’ve Got the Moves: Kinetic Jewellery with Moving Elements

Sometimes, at the Couture Show, you encounter a trend that feels perfectly attuned to the times we’re living in. This year in Las Vegas, that trend was movement. Or, more precisely, moving elements that speak to that very human desire to keep our hands busy, our senses engaged, and our minds soothed.

by Claire Roberts

Verified in Vegas: The Biggest Jewellery Trends of the Couture Show 2025

The Couture Show presents a curated view of the best in craftsmanship, design, fresh ideas and originality, which is why it’s such a vital place to forecast the ‘next big thing’. Here’s what I have gleaned from this year’s State-side events

by Sarah Jordan

Instant Charm: Celebrating New Creations with Karina Choudhrie Jewels

Let's take a closer look at the latest pieces that have emerged from Karina's incredible imagination…

by Katerina Perez

Key Facts About Gold: An Ancient Symbol of Power and Luxury

In an age where digital currencies rise and fall, gold remains a universal symbol of stability, beauty, and lasting worth. It is worn on the skin, locked in vaults, and passed down through generations as a living legacy.

by Hirshi Sujanti

Little Legends: The History and Power of Pinky Rings

Pinky rings have long carried cultural weight - from Ancient Mesopotamian seals to Egyptian signets and Japanese kamon heirlooms. Today, the style is experiencing a resurgence, thanks to contemporary designers and a growing list of high-profile wearers, including Meghan Markle, Bruno Mars, Rihanna, Victoria Beckham, Bella Hadid and Emily Ratajkowski

by Joshua Hendren

Latest Stories

Add articles and images to your favourites. Just

Epic Evolution:Miseno Launches the Arco Collection to Celebrate a Fabulous Decade

I am pleased to present to you my highlights of the new Arco High Jewellery collection, which was formally showcased to the jewellery world at Couture from June 4-8, 2025

by Katerina Perez

Jewels Katerina Perez Loves

Continue Reading

In Conversation:Discussing Paraiba - The Legacy of a Color

with Vogue Singapore

by Katerina Perez

Jewellery Insights straight to your inbox

Style Guide

By using this website, you agree to the storing of cookies on your device to enhance site navigation, analyze site usage, and assist in our marketing efforts. View our Privacy Policy for more information.