Engagement ring lost in back garden

I got a call from Toby this morning, he explained his fiancé engagement ring had been lost a week ago in their back garden,

I met up with Toby a few hours later, and he showed me the area he thought it was lost in, a few minutes later I had recovered the extremely valuable 18k Gold engagement ring inlaid with a row of diamonds, with my Garrett Apex detector, the ring rang in as a solid ID number of 56 , the ring was only 1/4 inch deep in the turf thatch and about 18” from where Toby thought the ring was lost, he was absolutely delighted as his fiancé was flying to the USA for work, another successful ring recovered via ring finders.