28.40 Carat Natural Persian Turquoise – Nishapur Mine, Iran | Polished Cabochon

Gemstone Details

● Gemstone: Natural Persian Turquoise

● Carat Weight: 28.40 ct

● Origin: Nishapur (Neyshabur) Mine, Iran

● Mineral Family: Phosphate

● Color: Blue to Blue-Green / Turquoise

● Shape: Oval

● Cut: Polished Cabochon

● Matrix: Natural Dark Mineral Matrix with Metallic-Looking Inclusions

● Transparency: Opaque

● Treatment: Not Independently Verified

● Condition: Loose, Polished Gemstone

● Hardness: 5–6 on the Mohs Scale

Description

This striking 28.40-carat natural Persian turquoise comes from the historic Nishapur mining region of Iran, a locality long associated with distinctive and highly collectible turquoise.

The oval cabochon displays a rich blue to blue-green body color with subtle tonal variation across its polished surface. Veins and patches of natural dark mineral matrix form an expressive pattern throughout the stone, while metallic-looking inclusions add flashes of contrast and visual texture. Together, these features give the cabochon a strongly individual appearance shaped by its natural formation.

Its substantial size provides a generous canvas for the color and matrix to unfold, making the stone especially appealing when viewed as a centerpiece. The smooth polish enhances the turquoise’s depth and luster while preserving the character of the natural material.

Nishapur turquoise has a long and distinguished history, and specimens from this region are valued for their geological provenance as well as their color and pattern. This cabochon offers collectors an attractive example of Iranian turquoise with a bold presence and clearly visible natural features.

For jewelry designers, its size and oval profile make it well suited to a statement ring, pendant, bolo tie, or custom artisan setting. The dark matrix and metallic-looking inclusions can pair particularly well with sterling silver, oxidized metals, or other designs that emphasize the stone’s earthy, Southwestern-inspired character.

Perfect For

● Persian turquoise collectors

● Collectors of historic gemstone localities

● Custom sterling silver jewelry

● Southwestern-inspired jewelry designs

● Statement rings and pendants

● Natural gemstone and mineral collections

● One-of-a-kind artisan jewelry creations

Asking Price: $250.00

Rogue Valley Gem Exchange

Carefully packaged for secure shipping.