
Hand signed lower right.
Image size: 64 x 52 cm.
Sheet size: 76 x 59 cm.
'Diagonal X' by Sonia Delaunay is a lithograph from 1975, measuring 76 × 59 cm, hand-signed and from a numbered edition. A large concentric target form dominates the centre, alternating black and white arcs radiating outward into a corona of yellow and a base of orange-red. Across this disc, a diagonal axis strings together a chain of bisected circles — each half-moon pairing red with black, yellow with black, or green with black — pulling the eye from the lower-left corner to the upper-right. A solid dark triangle anchors the left edge, grounding the composition's rotation. The work is a late example of Delaunay's lifelong practice in Orphism, the movement she co-founded with Robert Delaunay, which treated simultaneous colour contrasts as the primary structural force in a composition rather than line or form.
Diagonal X, 1975
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Hand signed lower right.
Image size: 64 x 52 cm.
Sheet size: 76 x 59 cm.
'Diagonal X' by Sonia Delaunay is a lithograph from 1975, measuring 76 × 59 cm, hand-signed and from a numbered edition. A large concentric target form dominates the centre, alternating black and white arcs radiating outward into a corona of yellow and a base of orange-red. Across this disc, a diagonal axis strings together a chain of bisected circles — each half-moon pairing red with black, yellow with black, or green with black — pulling the eye from the lower-left corner to the upper-right. A solid dark triangle anchors the left edge, grounding the composition's rotation. The work is a late example of Delaunay's lifelong practice in Orphism, the movement she co-founded with Robert Delaunay, which treated simultaneous colour contrasts as the primary structural force in a composition rather than line or form.
What is geometric abstract art?
Geometric abstraction is a form of abstract art that uses geometric shapes arranged in a non-illusionistic space (though not always) and combined into non-representational (non-objective) compositions. Based on years of artistic research, some artists have proposed that geometric abstraction offers a solution to modern challenges by rejecting traditional illusionistic practices in favor of clarity and simplicity.

Sonia Delaunay
Diagonal X, 1975
76 x 59 cm






















