This style was existed already about 500 years ago and the meaning on 'gimmel' is "twins" in Latin. So the concept of this ring is that two pieces get together and never be apart and it is said that this is the origin of marriage bands.
round ring (platinum) 
square ring (yellow gold and white gold / matt finish)| ~size(JPN) #20 | ||
| yg x slv | $650 | |
| yg x yg | $750 | |
| yg x wg | $800 | |
| wg x wg | $875 | |
| *need to get a quote for over #20 |
||
| ~size(JPN) #13 |
#14~#20 | |
| pt x yg | $1350 | $1450 |
| pt x wg |
$1850 |
$1950 |
yg:yellow gold slv:silver wg:white gold pt: platinum900