Rio Tinto has unveiled its inaugural Bunder diamond jewellery collection featuring stones from samples at its developing Bunder project in Madhya Pradesh, India.   Called Courageous Spirit, the collection incorporates 25.34 carats of polished diamonds and 2.8 carats of rough diamonds, including a 5.04 carat round brilliant cut white diamond and a 5.02 carat round … Continue reading Rio Tinto unveils Bunder collection