1) 10K white gold ring featuring a marquise pink synthetic stone with 10 round diamonds on the shoulders, sz 8.25, 2) 10K yellow gold ring featuring an oval faceted alexandrite accented by 2 diamonds, sz 6.75, and 3) 10K yellow gold ring highlighting an oval pink sapphire adorned with 6 diamonds, sz 7.75, 8.2 grams tw