Rare Art Deco Sterling Necklace Onyx Rock Crystal Geometric Pendant 925 18”
An exceptional vintage Art Deco necklace, defined by bold geometry, refined contrast, and authentic early-20th-century craftsmanship.
This striking piece features alternating natural black onyx cubes and clear-to-blush rock crystal (quartz) cubes, arranged in a precise, architectural sequence along the neckline and culminating in a dramatic woven geometric pendant. The design is unmistakably Art Deco — strong lines, symmetry, and a confident modernist aesthetic.
The necklace is hand-assembled in sterling silver, with elongated tube links and polished silver bead spacers, and is finished with a spring ring clasp clearly marked 925. All stones have tested as natural (not glass).
The pendant's grid construction showcases meticulous craftsmanship and dimensional depth, creating movement and light play when worn. This is a statement piece that sits beautifully at the collarbone and transitions effortlessly from daytime sophistication to evening elegance.
✦ Details
Era: Art Deco, circa 1930s-1940s
Materials: Natural black onyx, natural rock crystal (quartz), sterling silver
Clasp: Sterling silver, marked 925
Construction: Hand-assembled
Condition: Very good vintage condition
Light, age-appropriate wear consistent with authentic antique jewelry. No missing beads; all components intact.
✦ Why This Piece Is Special
Authentic Art Deco geometry
Natural stones confirmed by tester
Substantial, wearable statement design
Scarce configuration — highly collectible
This necklace would be at home in a serious Art Deco jewelry collection, a curated vintage wardrobe, or worn as a singular statement with minimalist styling.