approx .65ct 7x5mm oval sphene color may vary. this seldom seen gemstone is 5 5 12 on the mohs hardness scale with poor to fair toughness. it is best to avoid rough handling abrupt temperature changes and acids.
approx .70ct 7x5mm oval sphene color may vary. this seldom seen gemstone is 5 5 12 on the mohs hardness scale with poor to fair toughness. it is best to avoid rough handling abrupt temperature changes and acids.