Related Clues:

• Gem on a necklace
• It's felt beneath the princess to go to rugby league with precious stone
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• Tone similar to eggshell
• "The Good Earth" novelist Buck
• Sea gem
• It's a gem of a conference, perhaps with fifty in attendance
• Fine example
• "Cultured" gem
• Oyster's offering
• It looks as though the frost has got this bulb
• Lustrous structure in an oyster-shell
• Diving find
• Nugget of wisdom
• Lustrous structure in a mollusc shell