Sirius Jewellery · Prague ExceptionalEngagement Rings& Bespoke Diamond Jewellery
Natural and lab-grown diamonds. Every design is made to order in the Czech Republic and can be adapted to your wishes.
Sirius Jewellery specialises in exceptional engagement rings and bespoke diamond jewellery. We combine timeless design, carefully selected natural and lab-grown diamonds, and a highly personalised approach to create jewellery as unique as the people who wear it.
Personal Service. Exceptional Jewellery.
We advise on the choice of diamond, adapt an existing design or create an entirely new piece to your idea — and stay with you from the first sketch to the finished jewel.
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Personal customer care
One contact for the whole journey, by e-mail, phone or in person.
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Expert diamond advice
Natural or lab-grown, shape, carat, colour and clarity — explained plainly, chosen together.
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Adjustments of existing designs
A different stone, metal colour or band width on any design in the catalogue.
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Complete bespoke production
A new piece designed around your idea, modelled in 3D and made by hand.
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From first design to completion
Drawings, 3D renders and approval at every step until the piece is finished.
Exceptional Diamonds. Endless Possibilities.
Every Sirius design can be set with a natural or a lab-grown diamond, in the cut and size you choose.
Natural diamonds
Formed over billions of years, selected for rarity and character. Supplied with a GIA or IGI certificate.
Lab-grown diamonds
Chemically, physically and optically identical to mined diamonds — larger stones and higher grades within reach.
- Round
- Oval
- Pear
- Emerald
- Radiant
- Cushion
- Marquise
Round, oval, pear, emerald, radiant, cushion, marquise and more — ask us for a selection of stones for your design.
Sirius Catalogue 2026
The complete collection, in one document.
Every published design with photographs, reference numbers and a QR code to its video — generated from the live catalogue.