I remember once seeing a trivia question, "Which of Tolkien's characters has physically touched a Silmaril?" There was some debate over whether Varda would have held them in her hands to hallow them, as shown here, or if she could have done it remotely.
Interestingly, in the earliest drafts of the Silmarillion it was Manwë who hallowed them and Varda who made the prophecy that in the published book Námo gives.
Part 154: Holy, holy, holy
Next time: Part 155
Chibis by tektek.org