Edith Crawford wears the diamonds one night, then she brings them back to Lady Donaldson's room.

Remember the maid's statement: 'My lady said: "Have you put them back, my dear ?"--a simple statement, utterly ignored by the prosecution.

But what did it mean?
That Lady Donaldson could not see for herself whether Edith Crawford had put back the jewels or not, _since she asked the question_." "Then you argue--" "I never argue," he interrupted excitedly; "I state undeniable facts.
Edith Crawford, who wanted to steal the jewels, took them then and there, when she had the opportunity.

Why in the world should she have waited?
Lady Donaldson was in bed, and Tremlett, the maid, had gone.
"The next day--namely, the 25th--she tries to dispose of a pair of earrings to Mr.Campbell; she fails, and decides to go to London, where she has a better chance.

Sir James Fenwick did not think it desirable to bring forward witnesses to prove what I have since ascertained is a fact, namely, that on the 27th of October, three days before her arrest, Miss Crawford crossed over to Belgium, and came back to London the next day.