Does she prefer a chunkier necklace? She will love this Thai silver, ball necklace with up to the minute styling to suit older girls, teenagers and adults. Necklace is 45cm long and has T Bar toggle closure. What is Thai silver?Thai silver has around 95% to 98% more silver content than Bali or even sterling silver which has only 92.5% silver content. It contains less copper than sterling silver, which makes it slightly less bright but is less prone to tarnish.