Make a bold statement with this vibrant 0.40ct Natural Blue Diamond. This genuine, earth-mined diamond has been expertly color-treated to achieve a striking, deep ocean-blue hue. It delivers the unmatched fire, brilliance, and durability that only a natural diamond can offer, but with a unique and captivating pop of color.


$75 
  • Brand: Gemhunter
  • SKU: DB7
  • Shipping: 
  • Return Policy: We stand behind the quality of our gemstones. We offer a 14-day return window from the date of delivery. To be eligible for a refund, the gemstone must be returned in its original, unaltered condition (not set, scratched, or damaged). Please contact us directly to initiate a return and receive instructions for fully insured return shipping.

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Make a bold statement with this vibrant 0.40ct Natural Blue Diamond.

This genuine, earth-mined diamond has been expertly color-treated to achieve a striking, deep ocean-blue hue. It delivers the unmatched fire, brilliance, and durability that only a natural diamond can offer, but with a unique and captivating pop of color.

Because it is a treated stone, it provides a fantastic, budget-friendly alternative to ultra-rare naturally occurring fancy blue diamonds, allowing you to create a spectacular custom piece without compromising on the diamond's natural origin. Whether you are designing a one-of-a-kind engagement ring, a bespoke pendant, or a standout pinky ring, this round-cut blue diamond is guaranteed to turn heads.

Gemstone Specifications:

  • Stone Type: Natural Earth-Mined Diamond

  • Carat Weight: 0.40 ct

  • Shape & Cut: Round Brilliant Cut

  • Color: Deep Blue

  • Treatment: Color Treated (Enhanced for vibrant color)

  • Ideal For: Custom engagement rings, bespoke pendants, or investment collections.

(Note: We always disclose treatments to ensure complete transparency with our buyers. Color treatments on natural diamonds are permanent and stable under normal wear.)