Diamond Knowledge Hub

Master the technical details of Lab Grown Diamonds. Industry-standard definitions for jewelers and retailers.

Post-Growth Treatment

Understand what "As Grown" vs "Treated" means for CVD diamonds. Why HPHT post-processing is used to improve color.

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Type IIa Diamond

The purest form of diamond crystal, devoid of nitrogen impurities. Why almost all premium lab diamonds are Type IIa.

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CVD vs HPHT

Chemical Vapor Deposition vs High Pressure High Temperature. Which growth method is better for large carat stones?

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Hearts & Arrows (H&A)

The precision cut standard for round diamonds. How to verify optical symmetry in lab grown stones.

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Blue Nuance

A subtle blue tint often found in HPHT diamonds due to boron. Is it a defect or a feature?

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Bow-Tie Effect

The dark shadow across the center of oval and pear diamonds. How to minimize it during sourcing.

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