Art Deco Art Movement
In the fields of visual arts, design, and architecture, the 1920s and 1930s marked a historic revolution. The explosion of technology, machinery, and modern thinking shaped a new design language, completely abandoning the curving, floral, and elaborate lines of the previous Art Nouveau or Edwardian styles. That language was called Art Deco.

The Art Deco movement brought a new design language with modern, sharp geometric lines.
This article will clarify the concept of what Art Deco is, analyze its core architectural elements, and decode how the brand Mary Le applies this geometric philosophy to its high-end diamond jewelry designs.
Concept and Historical Context: What is Art Deco Style?
Art Deco is a general term used to refer to the trends that developed in decorative arts and architecture between the two World Wars.
The name "Art Deco" originated from the Exposition Internationale des Arts Décoratifs et Industriels Modernes (International Exhibition of Modern Decorative and Industrial Arts) held in Paris in 1925. At this exhibition, judging panels honored works featuring geometric, angular lines that celebrated modern industry. Although it emerged in the 1920s, it wasn't until 1968 that historian Bevis Hillier officially used the term "Art Deco" to define the entire style of this period.

The Art Deco style is closely associated with the Roaring Twenties era and the 1925 International Exhibition in Paris.
The emergence of Art Deco is linked to the "Roaring Twenties" era. This was a period when society witnessed the strong rise of radio, cinema, and aviation (marked by Charles Lindbergh's transatlantic flight). The role of women also completely changed. They joined the workforce, gained the right to vote in 1920, and created new fashion standards (Flappers) with short skirts and short hair. This generation demanded a strong, decisive design style that represented speed and the future, replacing the soft floral patterns of the old Art Nouveau or Edwardian styles.
Core Architectural Branches of Art Deco
The Art Deco style is not monolithic but is divided into two main architectural branches, reflecting different cultural and socio-economic contexts.
1. Zigzag Moderne (1920s)
This design branch combines industrial thinking with inspiration from ancient civilizations. The discovery of King Tutankhamun's tomb (Egypt) in 1922 provided a wealth of visual material for designers.
- Geometric Features: Zigzag Moderne buildings use stepped masses, mimicking the ziggurat (ancient stepped tower) and pyramid architecture of the Egyptians, Aztecs, and Mayans.

The Zigzag Moderne architectural branch is characterized by stepped masses mimicking pyramids and soaring vertical lines.
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Surface Patterns: Designs apply sunburst and fountain motifs, combined with V-shaped lines (chevrons). The focus of Zigzag Moderne is soaring verticality, symbolizing the prosperity and aspirations of the pre-Great Depression era. The Chrysler Building in Manhattan (New York) is the most classic example of this architectural branch.
2. Streamlined Moderne (1930s)
Moving into the 1930s, the Art Deco style shifted to the Streamlined Moderne branch, influenced by the aerodynamics of cars and ships.
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Line Features: Buildings were designed lower, sharp corners were rounded, and roofs were flat. Lines were tapered, creating a sense of speed and continuous movement.

Streamlined Moderne architecture of the 1930s is notable for its aerodynamics, rounded corners, and industrial materials.
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Industrial Materials: To achieve smooth, modern surfaces, architects used large quantities of new materials such as Vitrolite (colored glass wall panels), Formica (laminate plastic), and industrial plywood.
Art Deco Jewelry Craftsmanship
The combination of architectural thinking and manufacturing technology completely redefined the jewelry industry during this period. Jewelers abandoned organic curves to establish new physical standards.
Metal Material Transformation
Instead of traditional yellow gold, Art Deco designers favored platinum and white gold. Thanks to its rigid mechanical properties, platinum could maintain the sharp angles of geometric designs, while also creating a bright, shiny metal surface that exuded an industrial and futuristic feel.
The Rise of Geometric Cuts
Advances in gem cutting technology allowed jewelers to process complex geometric shapes with high precision. Art Deco jewelry is characterized by diamonds cut into angular shapes:

Art Deco jewelers favored platinum and geometric diamond cuts such as Baguette and Emerald.
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Baguette: A long rectangular cut.
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Emerald & Asscher: Step-cut, rectangular or square, with parallel facets resembling steps.
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Trapeze (trapezoid) & Half-moon: Used as accent stones to connect geometric blocks.
Contrasting Color Techniques
Unlike the pale pastel colors of previous eras, Art Deco artists used strong visual contrasts. The clear white of platinum and diamonds were often placed next to dark, rich-colored materials. This color opposition represented the confidence and decisive spirit of the era.
The Art Deco Spirit in Mary Le's Diamond Collection

Mary Le's Art Deco diamond collection applies tiered structures and absolute symmetrical patterns.
To honor the clear design language of the 1920s, the Mary Le brand built its Art Deco collection based on symmetrical geometric standards and strict material science criteria.
Tiered Architecture and Symmetrical Patterns
The jewelry designs in the collection mimic the stepped structure of the Zigzag Moderne architectural branch. Tiered layouts and V-shaped patterns are arranged in calculated repetitions, creating a miniature architectural whole right on the metal surface. Superfluous decorative elements are completely eliminated, focusing entirely on sharpness and absolute symmetry.
Setting Techniques for Step Cuts
The focus of the collection is the application of natural Mary Le diamonds cut into Emerald and Asscher shapes.
From a physical perspective, the step-cut features a very wide, flat surface at the top (called the table). This optical structure acts like a transparent prism, receiving light in parallel lines. Due to this characteristic, the Emerald cut requires the original rough stone to be of extremely high clarity (at least VS grade or higher). Any blemishes or inclusions present within the carbon crystal lattice will be directly visible under light.

Mary Le Jewelry designs exclusively use platinum to securely set step-cut diamonds.
Each Mary Le diamond must pass the spectral inspection process of the Gemological Institute of America (GIA) to ensure it meets the demanding physical requirements of this cut.
Platinum and White Gold Settings Protect the Structure
To maintain the precision of the geometric shapes, the Art Deco collection uses 100% platinum for the ring settings and prongs. With its high density and strong tensile strength, platinum securely holds the sharp corners of square or rectangular cut diamonds, preventing chipping from mechanical impact. The cool white color of this metal creates a clean optical foundation, maximizing the primary stone's light reflection.