Today, 90 percent of the diamond fashion are made from diamonds mined in African countries with the rest mined in Australia, South America, Canada and Russia.
GIA Certified Diamond that are free from natural inclusions - trace minerals or other tiny characteristics - are the most sought after and there the most expensive.
How the diamond engagement ring has been cut, polished and to what proportions and symmetry are important, as these factors determine the life, brilliance and dispersion of the butterfly ring. If the cutting factors fall below standard the appearance of the butterfly ring is adversely affected.