TTechnology Read More Largest Blue-Green Diamond Gets $13M Price Tag at Christie’sApril 24, 2026 Christie’s will offer the Ocean Dream, the largest existing blue-green diamond, at its upcoming Geneva jewelry sale, expecting…
AArtificial intelligence Read More Gemologists Launch AI-Aided Gemstone Lab  April 6, 2026 Three gemologists have opened Swiss International Gemlab (SIG), which will use a proprietary artificial intelligence (AI) system to assist grading and consistency. SIG, the…