Rule out the usual hiding places first. If the piece really is gone, check the set piece by piece
and leave with the element ID LEGO asks for, or a link to buy the part.
908 pieces in 254 part and color combinations, plus 9 minifigures.
LEGO counts 943 pieces. This inventory comes from a separate parts catalog and lists 946, including the 38 parts inside the minifigures; the two do not always count the same elements, so their totals differ. Spare parts are counted in neither figure.
Before you call it missing
Builders who report a missing piece often find it in one of these places. Tick each one off as you look.
Look-alike colors in this set
These parts appear in this set in two colors that are easy to confuse. If you are one short in one color,
check whether it went in where the other color belongs. Each color has its own element ID in the parts list
at the back of the instructions.
Plate Round 1 x 1 with Solid StudWhite ×2Trans-Clear ×3Trans-Clear is see-through: hold the piece up to a light.
Brick 1 x 10Black ×3Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate 1 x 4Black ×1Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Plate 1 x 6Black ×3Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Plate 2 x 12Black ×2Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Plate 2 x 6Black ×1Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
3 more look-alike pairs
Plate 6 x 16Black ×1Dark Bluish Gray ×5Black is darker than Dark Bluish Gray.
Plate 8 x 8Black ×2Dark Bluish Gray ×2Black is darker than Dark Bluish Gray.
Plate Round 1 x 1 with Solid StudBlack ×16Dark Bluish Gray ×1Black is darker than Dark Bluish Gray.
Rock 1 x 1 Jewel / Gem 24 FacetTrans-Light BluePart 30153Element 6513972 or 6247792×1
Wave / Lightning Angular, Double with Marbled Trans-Purple PatternTrans-Light BluePart 59233pat0001Element 6514339 or 6450487×1
Bright Pink
1 piece
Cone 1 x 1 [Top Groove]Bright PinkPart 59900Element 6381793 or 6329300×1
Dark Purple
1 piece
Cone 2 x 2 x 2, Open StudDark PurplePart 3942cElement 6596908 or 6064621×1
Metallic Gold
1 piece
Equipment Dish / Plate / Bowl 3 x 3 [Plain]Metallic GoldPart 6256Element 6051528 or 4287800×1
Trans-Dark Pink
1 piece
Equipment Cup / Mug [Plain]Trans-Dark PinkPart 3899Element 6514012 or 6167767×1
Trans-Green
1 piece
Equipment Goblet LargeTrans-GreenPart 33061Element 4184851 or 4112845×1
Trans-Red
1 piece
Cone 1 x 1 [No Top Groove]Trans-RedPart 4589Element 618841×1
Trans-Yellow
1 piece
Cone 1 x 1 [No Top Groove]Trans-YellowPart 4589Element 618844×1
[No Color/Any Color]
1 piece
Sticker Sheet for Set 5378-1[No Color/Any Color]Part 60167Element 4508655×1
Minifigures
9 figures
Rubeus Hagrid, Reddish Brown OvercoatMinifigure, checked as a whole figure×1
Ron Weasley, Gryffindor SweaterMinifigure, checked as a whole figure×1
Albus Dumbledore, Sand Blue Outfit with Braid ClaspsMinifigure, checked as a whole figure×1
Professor Severus Snape, Dark Purple Vest, CapeMinifigure, checked as a whole figure×1
Professor Dolores Umbridge, Dark Pink OutfitMinifigure, checked as a whole figure×1
Death Eater, Black Hood and CapeMinifigure, checked as a whole figure×1
Draco Malfoy, Slytherin SweaterMinifigure, checked as a whole figure×1
Harry Potter, Gryffindor Sweater, High Arms on GlassesMinifigure, checked as a whole figure×1
Hermione Granger, Gryffindor Sweater, Mid-Length Hair with BraidMinifigure, checked as a whole figure×1
Tick each piece as you find it, or mark it missing.
When a piece really is missing
Ask LEGO
LEGO takes requests for pieces missing from a new set through its customer service site. The form asks for
the set number and each piece's element ID, the number printed beside the piece in the parts list at the back
of the instructions. This checker lists both.
Mark a piece missing and your list links it to an eBay search for that part, which also covers pieces from
older or second-hand sets.
Keep a record
Copy or download your missing list (the CSV opens in any spreadsheet), or print the whole checklist and tick
pieces off on paper. Your marks stay in this browser, so you can check a big set over several sittings.