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CRAFTED WITH CARE

Explore stunning lab-grown diamonds for every occasion.

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Lab-Grown Diamond: From Seed to Heart-Shaped Sparkler

1. Diamond Seed   Initiation

  • What it is: A diamond seed is a tiny, often HPHT-grown, single‑crystal diamond fragment.

  • Purpose: It acts as the nucleation platform on which new diamond layers will build.

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2. Growth Methods

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           High Pressure

        High  Temperature

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  • Mechanism: Emulates Earth’s interior—1300–1600 °C under pressures of ~5–6 GPa (80 elephants worth of weight!)
    Components:

    • Diamond seed

    • Carbon source (often graphite)

    • A metal catalyst (e.g., iron, nickel, or cobalt)

3. Post-Growth Treatments and Cutting

  • Color adjustments: CVD diamonds often need HPHT or LPHT (low-pressure, high-temperature) treatment to reduce brown tints caused by internal stress.
     

  • Inspection & layering: Sometimes, layers are removed or the crystal is re‑exposed for further growth to reach desired thickness.
    GIA

  • Shape cutting: The rough diamond is precisely cut and polished into its intended shape.

    • For a heart shape, this involves:

      • Creating symmetrical lobes

      • Carving a cleft

      • Crafting a crisp point

      • Ensuring precise faceting and brilliance

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Connect with us today for inquiries.

37 W 47th St Booth 66, New York, NY 10036

Diamond District, USA

(917)285-0158

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© 2025 by Rachel's Diamonds.

 

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