Gray Oval Cut Spinel Loose GemstoneSparkly natural gray oval faceted spinel gemstone. This loose faceted oval Spinel is available for a custom built ring by Nodeform Jewelry. Choose this gemstone in your preferred size, then select a ring setting that fits the shape and size of the selected stone. Add both to your cart and we'll create your ring! SPINEL SPECS: Size: 7 x 5 mm 0. 85ct or 8 x 6 mm 1. 4ct color Medium gray (slight blue or purple undertones possible) Treatment: none