0.85 ct Diamond Cut Midnight Twilight Loose Blue Sapphire GemstoneWeatherham Estate Treasures4(233)$5004 days Left
17.95 ct Fantasy Carved Flower Loose Swiss Blue Topaz GemstoneWeatherham Estate Treasures4(233)$1204 days Left
Vista Blue Color Tourmaline Gemstone: Natural October Birthstone, Africa (2.08 CT)Chairish Auctions4.5(10.4k)$150
Blue Lagoon Tourmaline Gemstone: Natural October Birthstone, Afghanistan (6.25 CT)Chairish Auctions4.5(10.4k)$7,500
Seafoam Blue Tourmaline Gemstone: Natural October Birthstone, Afghanistan (4.67 CT)Chairish Auctions4.5(10.4k)$1,600
Blue Green Tourmaline Gemstone: Natural October Birthstone, Africa (2.36 CT)Chairish Auctions4.5(10.4k)$100
Cyan Blue Tourmaline Gemstone: Natural October Birthstone, Africa (2.73 CT)Chairish Auctions4.5(10.4k)$160
Lgoon Blue Tourmaline Gemstone: Natural October Birthstone, Africa (1.84 CT)Chairish Auctions4.5(10.4k)$170
Blue Green Tourmaline Gemstone: Natural October Birthstone, Africa (2.54 CT)Chairish Auctions4.5(10.4k)$150
Natural Violet Blue Iolite 0.84 Ct. Peas Shape 7.5 x 5.6 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(226)$1Apr 19, 2026
Blue Green Tourmaline Gemstone: Emerald Cut, October Birthstone (1.16 CT)Chairish Auctions4.5(10.4k)$75
Diamond and Emerald Studs in 18K White Gold with 0.84 Ct DiamondsDiamond Depot4.3(11)$1,9504 days Left
