GIA Certified 2.62 carat oval cut natural green alexandrite measuring 8.6 x 7.5mm is set in a four-prong platinum 900 mounting flanked by stepped baguette diamond clusters on each shoulder, totaling approximately 0.10 carats across 6 diamonds in this elegant vintage-style ring. Size 5.75, adjustable.

The platinum 900 mounting features a clean, high-polish plain shank that transitions into a sculptural split gallery on each shoulder, where three stepped baguette diamonds are arranged in a fanned formation that widens toward the center stone — a design detail reminiscent of mid-century Japanese platinum craftsmanship at its most refined. The four-prong basket holds the alexandrite securely while leaving the maximum stone surface open to light, preserving the gem's celebrated color-change phenomenon from every viewing angle. The "Pt" hallmark is cleanly stamped on the inner shank, confirming the platinum composition and adding provenance and collectability to the piece.

This 2.62 carat natural alexandrite is among the rarest and most scientifically fascinating gemstones in the world — a chrysoberyl variety that shifts color depending on the light source, typically displaying green to yellow-green tones in daylight and shifting toward warmer olive, brownish, or reddish tones under incandescent light. At 8.6 x 7.5mm, this oval stone has a commanding face-up presence that is highly unusual for alexandrite, as fine specimens above 2 carats are extraordinarily scarce in the global gem market. Natural alexandrite of this size commands premium pricing not only for its beauty but for its genuine rarity — fine alexandrite consistently outpaces many diamond equivalents in per-carat value at auction. The 6 baguette diamond accents totaling approximately 0.10 carats provide a crisp, colorless architectural frame that enhances the alexandrite's rich green tones without competing with the center stone's extraordinary color story.