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    Old Mine Cut Engagement Rings: Candlelit Romance, Modern Craft

    The old mine cut is the antique forerunner of today's cushion and round brilliant — hand-cut by candlelight in the 1700s and 1800s, with a soft rounded-square outline, a high crown, a small table, and a large open culet. At Stienhardt, our old mine cut engagement rings pair that romantic, period character with IGI- or GIA-certified lab-grown diamonds, handcrafted in New York's Diamond District to last a lifetime.

    What makes the old mine cut special

    • A warm, glowing sparkle — broad, chunky facets return light in soft flashes rather than bright modern fire.
    • Genuine antique character, with the gentle hand-cut irregularity collectors prize.
    • The look of a true period diamond, without the rarity premium or wear — because it's lab-grown.
    • A perfect match for vintage-inspired settings: bezels, milgrain, and ornate detailing.

    Whether you're drawn to Georgian and Victorian romance or simply want a ring that doesn't look like everyone else's, an old mine cut engagement ring is a distinctive, deeply personal choice. Prefer a loose stone to design around? Explore our old mine cut lab grown diamonds.

    FAQ's

    A marquise cut diamond engagement ring features an elongated, boat-shaped diamond with pointed ends, offering a dramatic, elegant silhouette that elongates the finger and maximizes visual carat size.

    Marquise cut diamonds stand out for their elongated shape, ability to appear larger than their carat weight, and their signature pointed ends, which create a slimming effect on the finger and enhanced sparkle.

    The optimal length-to-width ratio for marquise cut diamonds generally ranges between 1.75 and 2.25. Lower ratios give a fuller look, while higher ratios emphasize elongation and elegance.

    Choose a diamond with excellent symmetry, minimal bow-tie effect, a balanced length-to-width ratio, and high clarity and color grades. Certification from a trusted gemological laboratory ensures authenticity and quality.

    Marquise diamonds shine in solitaire, halo, pavé, three-stone, floral, and hidden halo settings. Protective prongs like V-prongs help safeguard the pointed ends.

    Marquise diamonds pair beautifully with platinum for durability, white gold for a brilliant shine, yellow gold for warmth, and rose gold for a romantic hue.

    Yes. When set with protective prongs or bezel settings, marquise diamonds are durable enough for daily wear while maintaining elegance and sparkle.

    Yes. Marquise diamonds are available as responsibly sourced natural diamonds and as lab-grown options, offering ethical, conflict-free, and sustainable choices.

    Clean your ring gently with mild soap and a soft brush, avoid harsh chemicals, and have the setting checked regularly to ensure the pointed ends remain secure.