Silver Slave Bangle D-Shape. A 925 Sterling Silver D-shaped Bangle which is open at the back to make it easier for on and off the wrist. Tregawne offer this Silver bangle in 2 designs: Plain polished with large feature hallmarks or Plain polished with small hallmarks at the end ( no image available). All our Silver Bangles are manufactured in the UK. The Silver bangles can be engraved and are gift boxed.