Spike buys ring from demon who mojo'd perfect emerald ring

I"m trying to remember a Spuffy fix where Spike went to a demon who had the power to mojo/craft the perfect piece of jewelry for a client. The demon mojo"d an emerald ring for Spike to give Buffy. There might have been a dragon in the design too.

You might be after Alone in Death by Kari Mouke

"Spike looked at the small golden object. It was perfect. On either side of the ring were engraved two dragons, one black and one red. They met in the middle; mouths open wide, to hold a dark green emerald."

ScoobyDawn

That's it! Thanks!