Save2026Natural Mariner Blue Aquamarine Cabochon: March Birthstone, Pakistan (35.65 Carats)Chairish Auctions4.5(10.3k)Est. $500-$600Buy Now for $430.00
SaveMar 19, 202616ct NATURAL TURQUOISE OVAL CABOCHON 21.5"x15.6" ROBIN EGG BLUEModern Jewelry4.5(204)Est. $833-$1,026$670
SaveMar 05, 2026LOOSE NATURAL BLUE SAPPHIRE CABOCHON Sale is for 1 round cabochon natural blue sapphire SapphiresModern Jewelry4.5(204)Est. $73-$90$58
Save15 hrs Left18.67 Carats Deep Blue Sapphire Cabochon - Natural Sri Lankan Stone, 15.3x12.9x8.6mm, 5XKThousandPlanet4.4(230)Est. $40-$80$5(1 bid)
SaveFeb 18, 202617.0ct Round Pale Powder Blue Aquamarine Cabochon StoneWeatherham Estate Treasures4(213)Est. $230-$270$180
SaveMar 05, 2026LOOSE NATURAL BLUE SAPPHIRE CABOCHON Sale is for 1 round cabochon natural blue sapphire SapphiresModern Jewelry4.5(204)Est. $79-$97$62
SaveMar 05, 2026LOOSE NATURAL BLUE SAPPHIRE CABOCHON Sale is for 1 round cabochon natural blue sapphire SapphiresModern Jewelry4.5(204)Est. $73-$90$58
SaveFeb 20, 2026Vintage Sterling Silver Multi-Strand Cable Bracelet with Blue Cabochons – 40gSphere Auctions LLC4.4(69)Est. $10-$400$10
SaveMar 01, 20264mm HEART SHAPE CABOCHON NATURAL BLUE SAPPHIRE - RAREModern Jewelry4.5(204)Est. $618-$756$90
SaveFeb 27, 202610.24 ct Natural Light Blue Larimar, Oval Cabochon, Translucent, Dominican RepublicWeatherham Estate Treasures4(213)Est. $350-$450$200
SaveFeb 25, 202623.7ct Oval Cabochon Black with Blue Sparkle Nuummite GemstoneWeatherham Estate Treasures4(213)Est. $250-$350$165
SaveFeb 27, 202621.94 ct Natural Violet Blue Chalcedony, Pear Cabochon, Opaque, BrazilWeatherham Estate Treasures4(213)Est. $200-$300$100
SaveMar 01, 20263.2mm ROUND MATCHING PAIR CABOCHON NATURAL BLUE SAPPHIREModern Jewelry4.5(204)Est. $220-$271$175
SaveMar 01, 20265x3mm MATCHING PAIR OVAL CABOCHON NATURAL BLUE SAPPHIREModern Jewelry4.5(204)Est. $687-$825$110
SaveMar 01, 20263.5mm ROUND CABOCHON NATURAL UNTREATED BLUE SAPPHIREModern Jewelry4.5(204)Est. $618-$756$90
Save5 days Left1.05ct LOOSE NATURAL CABOCHON BLUE AQUAMARINE OVAL CUT 8x6mmModern Jewelry4.5(204)Est. $58-$72$46
SaveFeb 27, 202613.45 ct Natural Light Blue Chalcedony, Pear Cabochon, Opaque, BrazilWeatherham Estate Treasures4(213)Est. $150-$250$90
SaveMar 02, 2026Black Nuummite Oval Cabochon Gemstone with Blue SparkleWeatherham Estate Treasures4(213)Est. $250-$350$160
SaveMar 01, 20262.8mm ROUND MATCHING PAIR CABOCHON NATURAL BLUE SAPPHIREModern Jewelry4.5(204)Est. $133-$164$105
SaveMar 02, 20263.94 ct Natural Deep Navy Blue Star Sapphire, Pear Cabochon, Opaque, ThailandWeatherham Estate Treasures4(213)Est. $350-$450$220
SaveMar 01, 20263.2mm ROUND PAIR CABOCHON NATURAL LOOSE BLUE SAPPHIREModern Jewelry4.5(204)Est. $618-$825$150
SaveFeb 25, 202610.9ct Oval Cabochon Blue Sparkle Black Nuummite GemstoneWeatherham Estate Treasures4(213)Est. $200-$300$94
SaveMar 02, 20261.90 ct Light Blue Green Apatite, Oval Cabochon, Transparent, MadagascarWeatherham Estate Treasures4(213)Est. $250-$350$110