Here are two simple white gold rings. The smaller ring has a slightly brushed surface and a tiny sapphire incased.

Here are two rings made ​​of gold from the Cotapata Mining Cooperative in Bolivia. I have casted gems in gold and joined them to the ring. These can also be ordered in white gold. For more info about the project in Cotapata you can visit: http://www.patrickschein.com/uk/mining-communities.php