950 Platinum 2.5mm (CZ) STONE Jewel Nose Bone 20g
20g with inner diameter (wearable area) of 6 mm
20g is .80mm which will fit perfectly in an 18g nose piercing.
The Gem is set on this so it actually lays flat on your nose. It won't stick up and out like most others on the market.
"950" platinum, 95% of the weight of the net alloy will be platinum mixed with 5 % of another metal - by WEIGHT