Lot 154. Colombian Emerald of 13.61 carats and diamond ring. Estimate CHF 380,000 - CHF 480,000 (USD 380,000  - USD 480,000). Price realised CHF 579,000. © Christie's Images Ltd 2019.

Square-shaped emerald of 13.61 carats, triangular-shaped and baguette-cut diamonds, platinum, ring size 7½.

Gübelin, 2019, report no. 19080111: 13.61 carats, Colombia, insignificant clarity enhancement, Appendix letter
SSEF, 2019, report no. 109509: 13.614 carats, Colombia, minor oil, Appendix letter.

Christie's. Magnificent Jewels, Geneva, 12 November 2019