Serinity hotfix crystals Round (2000, 2038 & 2078) in Crystal AB are flat back crystals where the reverse side of the crystal has been pre-coated with a heat-sensitive glue. Crystal AB is a colourless, transparent crystal bead that has a special coating that reflects light in a rainbow of colours, hence the name AB which stands for Aurora Borealis. It is a popular colour in the world of jewellery making and beading, as it adds a touch of sparkle and glamour to any design.
Serinity hotfix flat back crystals are available in three types of cut: 2000 with 8 facets (SS3 and SS4); 2038 with 14 facets which optimises the light reflection of smaller sized crystals (SS5 to SS10); and 2078 with 16 facets and a unique star cut design which provides the ultimate brilliance (SS12 to SS48).