The lobster clasp is designed for single-hand use. The lever is thumb-actuated, which means you can open and release the gate without a second hand, a meaningful advantage when fastening a bracelet or necklace alone.
Origin Story
India held the world's only known diamond deposits for centuries, the stone reserved for royalty and religious use before trade routes carried it to Persia and eventually to Europe, the material arriving in Western jewelry culture already bearing the weight of a long history it had accumulated elsewhere.
A Notable Quality
The question of whether jewelry is hypoallergenic is really a question of what the skin actually touches. With gold over sterling silver, that surface is genuine gold, which most skin types accept without complaint.