All of our certified natural and lab fine gemstone jewelry in stock. All of these gemstones have been officially graded by experts in globally recognized labs. Each item comes with its own official certificate from the specific lab that it came from, such as GIA, IGI, GUB, and GRC. At Jewel House St John, we can also custom make any piece, such as an engagement ring, with a sourced GIA certified gemstone.
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Alexandrite and Diamond Drop Earrings - GUB Certified Natural -
Alexandrite and Diamond Infinity Ring - GIA Certified Natural -
Alexandrite Floral Diamond Halo Split Shank Ring - GIA Certified Natural -
Alexandrite Marquise Ring with Diamond Halo and Band - GIA Certified Natural -
Alexandrite Oval Ring with Diamond Halo - GIA Certified Natural -
Alexandrite Oval Ring with Diamond Halo - IGI Certified Natural -
Alexandrite Oval Seven Stone Ring - GIA Certified Natural -
Alexandrite Pear Shaped Ring with Diamond Accents - IGI Certified Natural -
Alexandrite Trillion Cut Ring with Diamond Halo and Band - IGI Certified Natural -
Bypass Ring - 2ct Lab Diamond - IGI Certified -
Bypass Ring - 3ct Lab Grown Diamond - IGI Certified -
Double Drop Diamond Earrings - IGI Certified Lab Grown Diamonds -
Emerald and Trapezoid Accent Lab Grown Diamond Ring - IGI Certified - PREORDER -
Fancy Vivid Green Lab Grown Diamond Trio Ring - 2ct IGI Lab -
GIA Certified Natural Paraíba Tourmaline & Diamond Stud Earrings -
Green Sapphire and Diamond Ring GIA Certified Natural Unheated Sapphire -
IGI Certified Emerald Cut Trio Lab Grown Diamond Ring with Round Brilliant Halo -
Marquise and Pavé band Diamond Ring - IGI Certified Lab Grown Diamond -
Orange Sapphire and Diamond Pendant GIA Certified Natural Unheated Sapphire -
Orange Sapphire and Diamond Sunburst Ring - GIA Certified Natural -
Orange Sapphire Pear and Diamond Halo Ring with Split Shank - GIA Certified Natural -
Oval Diamond Pendant Necklace with Halo - IGI Certified Lab Diamonds -
Oval Trio Ring - 7.18 cts - IGI Certified Lab Grown Diamonds -
Oval Trio Ring - IGI Certified Lab Diamonds - 14kt White Gold
