This ring was made back in the 70s with diamonds from an old Brooch that was from the 40s..The Brooch was a custom made peice with high end diamonds..it belonged to my friend Betty who,passed away at 83..The Brooch was her mothers..She has the ring made,along with some other items..So this isn't the usual I1- I2 Colored stones..Set in 14k yellow gold.The stamp has worn off due to wear..