Princess Brush n' Grow Ponies were printed in Year 7, between 1988 and 1989. They were the second and last set of Brush n' Grow Ponies, and the third set of Princess Ponies (following the original Princess Pony set from Year 5 and the second set from Year 6). Only one more set of Princess Ponies would be released, in Year 9.
Like the first set of Brush n' Grow Ponies, the Princess Brush n' Grow Ponies have long, full manes, and long tails which can be retracted into their bodies by a mechanism in their necks, operated by turning their heads back and forth. They have three colors in their hair, unlike the earlier Brush n' Grow Ponies, who had four.
Like both of the previous Princess Pony sets, the Princess Brush n' Grow Ponies have colored metallic tinsel in their manes; however, they do not have any tinsel in their tails. Unlike the earlier Princess Ponies, they do not have medallion symbols. Instead each princess has a colored jewel on her forehead. Their symbols all consist of a pair of flat shapes, striped in two colors. Each pony came with a long brush, a long comb, two "I Luv You" barrettes, and a ribbon.
Star Gleamer is a dark blue adult earth pony with pink eyes. Her hair is striped yellow, dark pink, and pink, and she has dark pink metallic tinsel in her mane. Her symbol is two stars striped yellow and dark pink, and on her forehead she has a dark pink heart-shaped jewel. She is in the Posey Pose. Star Gleamer came with a pink long brush, a lavender-blue long comb, two "I Luv You" barrettes (one mint green, one pink), and a ribbon.
Brilliant Bloom is a pale lavender-pink adult pegasus pony with aqua eyes. Her hair is striped aqua, light pink, and lavender, and she has dark purple metallic tinsel in her mane. Her symbol is two flowers striped aqua and orange, and on her forehead she has an aqua jewel shaped like an inverted teardrop. She is in the Lofty Pose. Brilliant Bloom came with a yellow long brush, an aqua long comb, two "I Luv You" barrettes (one lavender, one peach), and a ribbon.
Skylark is an aqua-green adult earth pony with dark purple eyes. Her hair is striped pink, lavender, and dark purple, and she has dark pink metallic tinsel in her mane. Her symbol is two birds striped pink and purple, and on her forehead she has a purple heart-shaped jewel. She is in the Quackers Pose. Skylark came with a mint green long brush, a purple long comb, two "I Luv You" barrettes (one yellow, one pink), and a ribbon.
Glittering Gem is a pink adult pegasus pony with maroon eyes. Her hair is striped white, yellow, and dark pink, and she has metallic tinsel in her mane. Her symbol is two hearts striped yellow and dark pink, and on her forehead she has a dark pink jewel shaped like an inverted teardrop. She is in the Surprise Pose. Glittering Gem came with a purple long brush, a yellow long comb, two "I Luv You" barrettes (one blue, one light pink), and a ribbon.