• Close-up of vintage 14K gold diamond illusion head ring showing diamond detail and setting on finger
  • Hand wearing a vintage mid-century 14K gold diamond illusion head ring with white gold accent on a white background
  • Close-up of vintage 14K gold diamond illusion head ring on a finger
  • Close-up view of vintage 14K gold diamond illusion head ring showing the diamond and setting
  • Hand holding a phone while wearing a vintage 14K gold diamond illusion head ring, lifestyle shot on white background
  • Vintage 14K gold diamond illusion head ring held between fingers, showing band and setting details with decorative background
  • Close-up of vintage 14K PRISM-LI hallmark stamp inside a gold diamond ring band
  • Close-up of the inside band of a vintage 14K gold diamond ring showing maker’s mark
  • Vintage 14K gold diamond ring shown on a ring mandrel, size 4.75
  • Close-up video of a vintage 14K gold diamond illusion head ring
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1940s–50s Mid-Century 14K Two-Tone Diamond Engagement Ring – Illusion Head, Size 4.75

1940s–50s Mid-Century 14K Two-Tone Diamond Engagement Ring – Illusion Head, Size 4.75

$495
$495
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✨ Mid-Century Diamond Engagement Ring – 14K Two-Tone Illusion Head ✨

This stunning mid-century vintage diamond engagement ring is crafted in solid 14K yellow gold with a white gold illusion head. The square illusion head enhances the brilliance of the center diamond, giving it a larger appearance while catching light from every angle.

The design shows Art Deco influence — from the stepped shoulders and geometric cutout details, to the striking square head that makes this ring visually dynamic from every viewpoint. It’s elegant yet understated, making it perfect as an engagement ring, wedding ring, or heirloom-quality vintage piece.

The inside is stamped “14K PRISM-LI” and “3”, a vintage jeweler’s hallmark, further authenticating its mid-century origins.

Lightweight yet solid at 1.74 grams, this ring balances beautifully and wears comfortably. Its unique design makes it a rare find for collectors or anyone seeking a distinctive vintage engagement ring.

📏 Sizing & Details

  • Era: Mid-Century, circa 1940s–1950s

  • Style: Illusion head solitaire, Art Deco revival with cutout shoulders

  • Metal: 14K yellow gold with white gold illusion head

  • Markings: “14K PRISM-LI” and “3” (maker’s hallmark)

  • Ring Size: US 4.75 (UK J½) – resizable by a jeweler

  • Weight: 1.74 grams

  • Band: 1.3mm (back), 2.7mm (shoulders)

  • Head: 4.7mm square illusion setting

  • Diamond: Approx. 2.3mm (~0.05 ctw), tested authentic natural diamond

  • Height: 3.5mm off the finger

💎 Why You’ll Love It

  • Genuine mid-century engagement ring (1940s–1950s)

  • Illusion head design makes the diamond appear larger

  • Art Deco revival styling adds uniqueness and elegance

  • Beautiful condition — strong, wearable, and timeless

Low stock: 1 left

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  • ✔ Ships securely with tracking & insurance
  • ✔ Unless otherwise noted, gemstone weights and specifications are estimated, having been assessed in mount.

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Shipping & Delivery

All orders include complimentary USPS shipping with full tracking and insurance. Each piece is carefully packaged in a velvet gift box, ideal for safekeeping or gifting. Orders are prepared within 1–2 business days and typically arrive within 3–5 business days across the U.S.

Authenticity Guarantee

Every jewel at Heirloom Trove is carefully tested and guaranteed authentic. Metals are confirmed for purity, diamonds are verified, and gemstones are assessed for accuracy. Each piece is exactly as described — a genuine vintage treasure curated for its quality and character.