Sapphire shops jewelry set

Product Name: Sapphire shops jewelry set
Beautiful sapphire jewelry set! All in very nice pre-owned condition. The metals have NOT been tested but the sapphires do test as real on my presidium tester! I believe the 'diamonds' test somewhere between the spinel and diamond/moissanite area. I don't know if it's not reading in the diamond/moissanite area because they may need to be cleaned or I possibly need to recalibrate my tester. Either way, they are real 'somethings'. Lol The stones on all 3 (4) pieces test real. I don't believe that these items are an actual matching set but they are all very similar and go beautifully together. All pieces are marked 925 and some with symptoms. I've included a photo of marks (I hope they are visible to you). I did lightly clean everything but highly recommend a much better or professional cleaning/polishing. The ring is a size 7 and the chain shops is approximately 18 inches. Reasonable offers are considered.