A close up of a red diamond with a red background

red gemstone，high qulity，

(nsfw:1.5),user names,multiple objects,structural errors,Unclear structure,low quality,medium low quality,medium quality,vague,worn,incomplete,sketches,(worst quality, low quality:2),FastNegativeV2,irregular,irregular objects,Lowresolution,text, errors,redundant numbers,fewer numbers, worst quality,low quality,normal quality, jpeg artifacts,signatures,watermarks,jag ging,serration,japanese style,japanese architecture,people,(human:1.4),black,dark,crack,fragmentary,dirty,design