After retiling my bathroom, I learned quickly that there is a TON of variation between production lines of the same tile from the same manufacturer. (You should have seen me laying out tons of tiles at Lowe's trying to find the ones that looked similar with just the right amount of variation.) If you can't reach the manufacturer you can take the tile with you to stores to look at it side by side bullnose options that they may have if you ABSOLUTELY love your current choice. Ordering online would be scary to me though because I would see any issues if it didn't look right. Best of luck!

Not sure what your entire space looks like but you might try looking at Schluter edging. Schluter