Gemstones – Tagged "Stone Size: 13mm" – Columbia Gem House

Only a small portion of our inventory is currently online. Contact us directly if you cannot find what you're looking for.

11.6 to 13.6mm Chilean Lapis Round Cabs

7.81ct AAA Iris Amethyst® Concave Triangle

10mm Portuguese Round Montana Amethyst

7 to 14mm Montana Amethyst Portuguese Rounds

13mm Hexagonal Christmas Star Natural Arkansas White Quartz

13mm Arkansas Clear Quartz Hexagon Christmas Stars

13mm Natural Radial Trillion Cut Orange Mexican Fire Opal

4.96ct Orange Mexican Fire Opal Concave Trillion

5mm Natural Round Brazilian Green Quartz

5 to 14mm Brazilian Green Quartz Rounds

11mm Round Natural Portuguese Cut Brazilian Lavender Quartz

8 to 13mm Brazilian Lavender Quartz Portuguese Rounds

10mm Star Cut Arkansas Clear Quartz

10 to 18mm Arkansas Clear Quartz Texas Star Rounds

13.1mm x 8.4mm Cushion Cut Natural Color Change Sphene

5.72ct Color Change Sphene Cushion Cut

8.28ct Swiss Blue Topaz Concave Trillion