Best Ruby and sterling silver necklace

This necklace is best made from genuine rubies in the shape of nuggets and rondelles interspersed with sterling silver round spacers.
As you can see from the photo the rubies differ in colour and are opaque, but are non the less beautiful.
There is a ruby on the extender chain to give it some weight at the back.
Rubies are the birthstone of July and also for a 40th Wedding anniversary.
There are 2 available, one with 4mm sterling silver spacers and one with 3mm sterling silver spacers. The one with the 3mm spacers has slightly smaller ruby nuggets as can be seen in the last photo.