1.17 ct. Japanese Iridescent Garnet - The Gem Trader Rare Gems

1.17 ct. Japanese Iridescent Garnet

  • Color: Dark Brown / Iridescence

  • Clarity: Semi-Translucent

  • Origin: Kose Mine, Tenkawa, Nara Prefecture, Japan

  • Cut: Oval - Checkerboard Top

  • Treatments: None

  • Measurements: 6.4 x 5.2 mm

These are one of the most distinctive of all Garnets.  From a well known (and now completely off-limits) Japanese locality,  the iridescence is caused by the twinning of the garnet crystal and is close to the surface only - too deep a polish will remove it entirely.  Anything symmetrical from this locale is scarce - these are often left as freeforms to lessen the likelihood of polishing away the iridescence.  A beautiful example with the absolute finest degree of colors for these and superior luster; remarkably, there is even some translucency to the garnet's bodycolor.  One of the few examples of stones from this find that could easily be incorporated into jewelry.

$140 / carat - $163 total