An 18 Karat White Gold, Jade and Diamond Ring, containing one navette shape cabochon cut jadeite jade measuring approximately 24.95 x 7.93 x 3.14 mm and 28 round single cut diamonds weighing approximately 0.30 carat total.Stamp: 18K (obscured maker's mark).Accompanied by a Mason Kay jade identification certificate number 180501-650, dated May 1, 2018, stating Conclusion: Natural Jadeite Jade, Enhancement: No dye or polymer detected, "A" Jade. 4.20 dwts.