Joycelyn gave a diamond necklace to her granddaughter Emma. Joycelyn had purchased the necklace in 1980 for $20,000. The FMV of the necklace at the time of the gift was $50,000. After deducting the annual exclusion, the amount of the gift was $35,000. Gift taxes of $10,000 were paid. What is Emma's adjusted basis in the necklace?