14k Yellow Gold 2.51ct Mahenge Spinel Pink Gemstone Ring Size 7 | Indulgems | EmmaEmma Collection Ring There is something about this pink that feels alive. Not soft. Not shy. It glows. At the center sits a 2. 51ct Mahenge spinel, and this is not just any pink gemstone. Mahenge spinels come from a small mining area in Tanzania. The stones from this region are known for their neon glow. This vivid, almost electric pink is what collectors chase. It holds color even in low light. It does not fade into the background. It stays present.