Save2026Natural Aquamarine Cabochon: Mariner Blue Gemstone, March Birthstone (10.10 Carats)Chairish Auctions4.5(10.4k)Est. $150-$200Buy Now for $120.00
Save4 days LeftNatural Blue Sapphire 5.01 Ct. Pear Cabochon Shape 10.6 x 8.8 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)Est. $42-$66$1
Save4 days LeftNatural Blue Sapphire 6.15 Ct. Oval Cabochon Shape 10.1 x 8.6 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)Est. $70-$110$1
Save4 days LeftNatural Blue Sapphire 4.07 Ct. Oval Cabochon Shape 10.7 x 8 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)Est. $35-$55$1
Save4 days LeftNatural Blue Sapphire 10.91 Ct. Oval Cabochon Shape 13.5 x 10.4 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)Est. $42-$66$1
Save4 days LeftNatural Blue Sapphire 3.39 Ct. Oval Cabochon Shape 10 x 7.4 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)Est. $42-$66$1
Save2 days Left11.16 Carats Sky Blue Arizona Turquoise Cabochon Parcel - Natural Loose Gemstones, 18XPThousandPlanet4.5(245)Est. $40-$80$5
Save4 days LeftNatural Blue Sapphire 3.87 Ct. Round Cabochon Shape 8.5 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)Est. $66-$104$1
SaveBuy NowNatural Blue Sapphire 11.36 Ct. Pear Cabochon Shape 17.1 x 10.9 Mm. Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)$14
Save2 days Left2.45Ct 6 Rays Blue Star Sapphire - Polished Cabochon , 981EKsmith Heritage Auctioneers4.3(46)Est. $30-$60$10
Save4 days LeftNatural Blue Star Sapphire 1.56 Ct. Round Cabochon Shape 6.2 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)Est. $28-$45$1
Save2 days Left11.82 Carats Sleeping Beauty Blue Arizona Turquoise Cabochon Parcel - Natural Loose Gemstones, 17XPThousandPlanet4.5(245)Est. $40-$80$5
SaveBuy NowNatural Blue Sapphire 4.37 Ct. Pear Cabochon Shape 11 x 8.2 Mm. Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)$14(1 bid)
SaveApr 10, 2026Natural Multi Color Blue Labradorite Doublet 9.74 Ct. Baguette Cabochon Shape 16 x 12 Mm. GemstoneTreasure of Gems & Jewelry4.4(225)Est. $118-$186$1
SaveApr 10, 2026Natural Gray Blue Star Sapphire 9.17 Ct. Oval Cabochon Shape 12.6 x 11 Mm Gemstone From ThailandTreasure of Gems & Jewelry4.4(225)Est. $122-$192$1
Save2 days Left17.81 Carats Deep Blue and Brown Matrix Boulder Opal Cabochon - Natural Australian Stone, 41XMThousandPlanet4.5(245)Est. $80-$160$5
Save2 days Left107.88 Carats Midnight Blue Goldstone Oval Cabochon Parcel - 1.8-2.3cm, 77ZJThousandPlanet4.5(245)Est. $40-$80$5(1 bid)
Save2 days Left11.48 Carats Sky Blue Arizona Turquoise Cabochon Parcel - Natural Loose Gemstones, 15XPThousandPlanet4.5(245)Est. $40-$80$5
Save2 days Left5.82 Carats Soft Blue and Iridescent Green Boulder Opal Cabochon - Natural Australian Stone, 46XMThousandPlanet4.5(245)Est. $80-$160$5
SaveApr 10, 2026Natural Blue Sapphire 4.89 Ct. Oval Cabochon Shape 9 x 8.6 Mm. Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)Est. $81-$127$1
SaveApr 10, 2026Natural Multi Color Blue Labradorite Doublet 8.97 Ct. Baguette Cabochon Shape 16 x 11.8 Mm GemstoneTreasure of Gems & Jewelry4.4(225)Est. $118-$186$1
Save2 days Left2.44Ct 6 Rays Blue Star Sapphire - Polished Cabochon , 975EKsmith Heritage Auctioneers4.3(46)Est. $30-$60$10
SaveBuy NowNatural Blue Sapphire 3.59 Ct. Oval Cabochon Shape 9.3 x 7.9 Mm Gemstone From MadagascarTreasure of Gems & Jewelry4.4(225)$18
Save2 days Left6.05 Carats Blue Sheen Moonstone Cabochon Parcel - Natural Indian Stones, 100XNThousandPlanet4.5(245)Est. $20-$40$5(1 bid)