Never let diamond jewelry some into contact with bleach or other chemicals as they can pit or discolour the setting.
Dont be fooled into buying engagement ring that is said to be .25 points. It is NOT a quarter of a carat, and will be so small that it should only be used as accent to other stone or the gold itself.
butterfly ring are strong bonding and carbon composition cause theirs surface to repel water but to readily accept wax and grease.