Over the last 90 days, the tracked price per unit for Martha Stewart 5 Carat Oval Shape Ruby, Emerald and Lab Grown Diamond Three Stone Plus Ring In Sterling Silver ranged from $149.99 to $149.99 (average $149.99), across 1 captured data point since 2026-09-11. Dealophant records the real cost per unit — not the sticker price — so you can tell whether a "deal" is actually cheap per ounce, sheet, load, or count.
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