necklace
珞 centers on a necklace, specifically a string of beads or gems worn around the neck.
珞 combines 王 (jade/jewel) with 各, which likely contributes a phonetic element. The character specifically refers to a necklace or string of beads.
The left side 王 represents a jewel or precious stone, and the right side 各 looks like a person with a mouth, perhaps stringing beads together. Imagine a jeweler carefully threading gems to create a beautiful necklace.
For ラク, picture a lucky necklace made of rare gems: luck -> ラク, and the necklace brings good fortune.
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