IKO Stained Glass Studio

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The Studio and the Artist

IKO Studio was founded in Rome in 2006 by artist Diego Tolomelli who, having obtained over 10 years experience working with some of the most prestigious stained glass studios in England. Projects included windows for the Houses of Parliament, as well as numerous churches, private houses and stately homes. He returned to Italy and worked for a short time in a well known studio in Rome and after completing a number of important commissions, he decided to open a professional studio so as to focus on offering stained glass of the highest possible quality.

Painting glass

Painting in IKO Studio’s Strength.

IKO Studio produces stained glass using the finest glass available on the market and Diego is specialised in detailed painting. His attention to detail means that the final windows look as beautiful close up as they do from a distance. Each layer of the image is built up using glass paints, enamels and stains that are all kiln fired, ensuring the paint lasts a life-time.

Vitrales Artísticos IKO Studio
Leaded Stained Glass With Batterflies Detail

Passionate about Stained Glass


IKO Studio brings the radiance of a well designed stained glass window to any style, from traditional, Victorian stained glass, through to religious, ecclesiastic stained glass. Diego has a passion for experimenting with glass and glass painting, and also produces spectacular modern and contemporary stained glass.

Stained glass can be incorporated into windows, sky-lights, doors, wall and furniture, screens and dividers and sculptures. IKO Studio’s skill and expertise means that stained glass can be incorporated in to a range of settings, with designs that take inspiration from the environment in which the glass will be displayed.

IKO Studio also produces free-standing and wall mounted stained glass lamps, as well as gifts such as light catchers and bespoke gifts to celebrate births, weddings and other important occasions. The same level of passion and attention to detail goes in to all our products.

“For me, the magic of stained glass comes from the way in which coloured glass becomes transformed by light, the way in which the tiny bubbles trapped within the glass, give it movement and sparkle. The magic becomes complete once paint is applied to the glass, creating delicate shading, subduing the light in places whilst highlighting it in others. This art form is unique. It has transparency within its soul and this becomes glorious and radiant with light.”

Diego Tolomelli


Traditional Stained Glass

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Religious Stained Glass

Modern Stained Link Image

Modern & Contemporary Stained Glass

Our Mission

IKO Studio and Diego Tolomelli are committed to creating stained glass of the highest quality, and building the reputation of Italian master craftsmen and women who work in this media. We strive to produce stained glass and courses that  will inspire future generations, and other artists to meet the challenge of continuing this ancient tradition in a modern world. We are both excited and proud to be part of a growing international stained glass market, both in terms of creating new traditional, religious, modern and contemporary stained glass as well as restoring and conserving antique stained glass so that it can be enjoyed for years to come.

Glass Painting Class Photo Group


Diego also teaches and trains others in the main techniques of creating stained glass. He has a deep commitment to passing on not only skills but the passion he has for this ancient art form. He offers intensive, residential courses throughout the year at the Studio which is housed within a large villa, nestled in the Umbrian countryside, close to Orvieto.

Vetrata Artistica Venezia

Professional Commissions

We are experienced in working with architects and interior designers from all over the world too. We have produced windows for churches, public buildings and stately homes throughout Europe, Africa and Japan. We enable you to offer a premium product to your clients, on time and within budget and without problems. We also have an extensive network of other trusted Italian artisans who we collaborate with for mosaics and frescos and carpentry.

Clients are welcome to visit the studio, and we are happy to visit you, if you are located in the area.

Restauración de vitral

Restoration and Conservation

Diego also specialises in the restoration and conservation of medieval stained glass. Frequently stained glass windows that have been damaged, even extensively, can be restored. This is particularly significant with historically important stained glass windows, or windows that have some emotional or religious value. Diego’s experience, passion and skill means your window is in good hands, and will be restored as close to its former glory as is technically possible.

Private Commissions

Because we can pack and ship our stained glass all over the world, our private clients come Europe, North and South America, Asia and Africa. Diego Tolomelli has created unique pieces for houses in the Middle East, America and Italy. We work closely with our private clients, guiding them through the design process and keeping them regularly updated with photos of their window’s progress. We deliver and install the completed stained glass on time and within budget or where necessary liaise with the local workforce to ensure a successful installation.