diff --git a/src/data/items.h b/src/data/items.h
index 2b560ad9d5..fc32e03042 100644
--- a/src/data/items.h
+++ b/src/data/items.h
@@ -13490,6 +13490,8 @@ const struct Item gItemsInfo[] =
     {
         .name = _("Adamant Crystal"),
         .price = 0,
+        .holdEffect = HOLD_EFFECT_ADAMANT_ORB,
+        .holdEffectParam = 20,
         .description = COMPOUND_STRING(
             "A large, glowing gem\n"
             "that lets Dialga\n"
@@ -13506,6 +13508,8 @@ const struct Item gItemsInfo[] =
     {
         .name = _("Griseous Core"),
         .price = 0,
+        .holdEffect = HOLD_EFFECT_GRISEOUS_ORB,
+        .holdEffectParam = 20,
         .description = COMPOUND_STRING(
             "A large, glowing gem\n"
             "that lets Giratina\n"
@@ -13522,6 +13526,8 @@ const struct Item gItemsInfo[] =
     {
         .name = _("Lustrous Globe"),
         .price = 0,
+        .holdEffect = HOLD_EFFECT_LUSTROUS_ORB,
+        .holdEffectParam = 20,
         .description = COMPOUND_STRING(
             "A large, glowing gem\n"
             "that lets Palkia\n"