Monique Lhuillier 6696 Wedding guest unclassified dresses

I purchased this dress for my wedding but I have found another dress since then that I absolutely love. This dress would be perfect for a more modest bride, the lace and neckline on it is just absolutely beautiful. I purchased this dress through my school so I am unsure of the exact year (it is probably around 5 years old) that it was made, but it has been perserved well and is in new shape. A long sleeve dress by the same designer for 2016 goes for about $10,000. The train on the dress is detachable.