Is there a place for lab-grown stones at auction? Four experts weigh in.

Carved into history: Cameos and intaglios from as far back as the Roman Empire dominate the New York auction.

Ground expeditions: This new program takes collectors and jewelers on educational tours of colored-stone mines.

Top finds in Tucson: From pinks and peaches to a range of blues, dozens of fairs across the city delivered vibrant color, even as steep prices left buyers cautious.

The Italian maison’s choice of bright colors and smoothly hidden settings reflects its philosophy of liberation.

This luxury jewelry brand turns its namesake precious metal into faceted beads that sparkle like diamonds.

Why this traditionally second-place metal could be a winner for retailers this year.

Seals of approval: Personalized and one-of-a-kind styles are leading the pack, with designs that look to the future rather than connecting to the past.

Forward looks: From craftcore to self-expression, the renowned style forecaster shares the latest insights from her annual report.

Here’s how retailers can optimize their online engagement to draw in shoppers and boost the bottom line.