2.98ctw Laboratory-Grown Blue Alexandrite Bolo Bracelet in Rhodium-Plated SilverKings Auctions Inc4.4(129)$70Jul 19, 2026
1.60ctw Laboratory-Created White Opal Ring in Rhodium-Plated Sterling SilverKings Auctions Inc4.4(129)$50Jul 19, 2026
Antique E. Leitz Wetzlar Brass Laboratory Microscope No. 132288Sphere Auctions LLC4.3(127)$10(1 bid)Jul 06, 2026