Diamond Shield

Expressive Art Deco Platinum Ring With Large Old European Cut Diamond, Circa 1925

In the Art Deco era, a new form for jewellery began its triumphant advance: The flat shield, designed as a basic geometric shape and called a "plaque". It accommodated the 1920s preference for graphic forms, for jewellery designs that presented their decoration two-dimensionally rather than sculpturally. Above all, however, this form of jewellery was perfectly suited to show off the filigree processing techniques of the time. With the finest saw work and shadow gaps, the piece of jewellery here seems to dissolve into geometric elements. Milgrain settings give the metal additional structure. This filigree, elaborate work is only possible due to the platinum used here: for it is far tougher than the comparatively brittle gold, so that such decorations can only hold their own. This is why jewellery created in the years after 1900 often features particularly fine workmanship, as the precious platinum was hardly ever used before. In the centre of the modern design sparkle two large old European cut diamonds of together about 1.90 ct in the sought-after colour "Top Wesselton", which appear through the surrounding shadow gaps even larger. Around these two central stones, twelve further diamonds are set, making the show side of the ring sparkle to great effect. It is the effect of light and shadow in particular that distinguishes this monochrome ring and attracts the eye again and again. A beautifully preserved jewel typical of the period from the heyday of Art Deco that shows why the designs of that time are still so sought after today. The ring, which came to us from Lake Constance, comes with a detailed certificate from the German Society for Gemstone Appraisal Idar-Oberstein and is pleasant to wear thanks to its flat design.

Jewellery in elegant, cool and noble white - that has been the dream of jewellery designers since the late 19th century. But the technical possibilities put a stop to this dream for some time. Diamonds were available, but the tricky part was the question of the right metal. At first, only silver was available to create white jewellery from, but the metal tarnishes and can leave discolorations on skin and clothes. From the 1900s onwards, platinum was used more and more, but it was difficult to work with and much more expensive than gold, so that platinum was usually only used on the front of the pieces.

We want you to be 100% satisfied! For that reason, we examine, describe and photograph all of our jewellery with the utmost care.

You can rely on our years of experience in the trade and our expertise as a professional art historians for reviews of the antique jewellery. As a member of various trader organisations and the British Society of Jewellery Historians, we remain committed to the highest possible degree of accuracy. In our descriptions, we always also indicate any signs of age and defects and never hide them in our photos – this saves you from any unpleasant surprises when your package arrives.

Should you for some reason not be satisfied, please don’t hesitate to contact us so that we can begin to find a solution together. In any case, you can return any article within 30 days and we will refund the full purchase price.


We want you to be 100% satisfied! That’s why we examine, describe and photograph all our jewellery with the utmost care.

If for any reason you are still not satisfied, contact us and we will find a mutual solution immediately. Regardless, you can return any item within 30 days and we will refund you the full purchase price.