Product Details

This 2.70-carat goshenite from Pakistan showcases exceptional clarity and a bright, sky blue brilliance. Measuring 9.4 x 7.6 x 5.5 mm, its well-defined cut enhances its natural luster, making it a refined choice for elegant jewelry or a valuable addition to any gem collection. Goshenite, Blue Beryl (Aquamarine-Type) — Pakistan Be₃Al₂Si₆O₁₈ This specimen represents iron-bearing beryl from Pakistan, displaying a delicate aquamarine-blue hue. While goshenite is defined as colorless beryl, the presence of Fe²⁺ substituting within the crystal lattice produces the characteristic blue coloration associated with aquamarine. Pakistani beryl deposits, particularly from pegmatitic environments in Gilgit-Baltistan and the Shigar Valley region, are known for producing highly transparent material with fine crystallographic development. Gemological Properties: Crystal System: Hexagonal Hardness: 7.5–8 Refractive Index: ~1.577–1.583 Birefringence: ~0.005–0.009 Specific Gravity: ~2.70–2.80 Pleochroism: Weak blue to nearly colorless The blue coloration is typically attributed to Fe²⁺, and may deepen slightly with gentle heat treatment, though untreated material is common. High-clarity Pakistani stones are valued for their transparency and clean pastel saturation.