Только в 2 запроса.
1) https://dev.1c-bitrix.ru/api_help/iblock/classes/ciblockpropertyenum/getlist.php
[CODE]$property_enums = CIBlockPropertyEnum::GetList(Array("DEF"=>"DESC", "SORT"=>"ASC"), Array("IBLOCK_ID"=>$IBLOCK_ID, "XML_ID"=>"COLORS"));
if($enum_fields = $property_enums->GetNext())
[/CODE]
2) https://dev.1c-bitrix.ru/api_help/iblock/classes/ciblockelement/getlist.php
[CODE]$res = CIBlockElement::GetList(Array(), array("IBLOCK_ID"=>$IBLOCK_ID, "=PROPERTY_LIST"=>$enum_fields["ID"]), false, false, array("ID", "NAME"));[/CODE]