Certified Gemstone Jewelry 

CERTIFIED COLLECTION Every Stone. Every Certificate

Every piece in this collection features a center stone or multiple stones independently certified by one of the world's leading gemological laboratories. GIA, GRS, Gübelin, SSEF, AGL, or equivalent. No exceptions. 

GIA
AGL
GRS
SSEF
EGL
Gübelin

CERTIFIED RINGS

3 SHOWN · 282 TOTAL
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EGL Certified 2.15 Carat Princess Cut Diamond in 14K White Gold Engagement Ring – Assay Jewelers
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GIA 1.25 Carat Burma Ruby & Pave Diamond 18K White Gold Ring – Assay Jewelers
GIA Certified 4 Carat Colombian Minor Oil Emerald & Diamond Engagement Ring – Assay Jewelers

CERTIFIED NECKLACES

3 SHOWN · 43 TOTAL
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GIA Certified Type A Fei Cui Jadeite Jade Pierced Carving Yellow Gold Pendant – Assay Jewelers
GRS Certified 17.85 Carat Emerald & Diamond Filigree 14K Yellow Gold Necklace – Assay Jewelers
GRS Certified 4.13 Carat Heart Sapphire Diamond 18K White Gold Pendant Necklace – Assay Jewelers

CERTIFIED EARRINGS

3 SHOWN · 31 TOTAL
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18K Gold Natural Colombian Emerald and Diamond Detachable Drop Earrings – Assay Jewelers
Mouawad Signed Vivid Cabochon Emeralds & Baguette Diamond Halo Clip On Earrings – Assay Jewelers
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Vintage Art Deco AGL Cert. 10 Carat Colombian Emerald Pear Drop Platinum Earrings – Assay Jewelers
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CERTIFIED BRACELETS

3 SHOWN · 8 TOTAL
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GIA Cert. 2.65 Carat Yellow Diamond Center 18K Tennis Bracelet – Assay Jewelers
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GIA Certified GUMP Signed Lavender Jadeite Jade 14K Gold Link Bracelet – Assay Jewelers
Save 20%
Vintage EGL Certified 2.01ct Brilliant Cut Diamond Bezel 18K Yellow Gold Bangle – Assay Jewelers
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4.17 Carat Colombian Emerald & Diamond Unisex 14K White Gold Ring – Assay Jewelers
Certified
GRS Certified 5.04 Carat Sri Lanka Vivid Blue Sapphire & Diamond 18K White Ring – Assay Jewelers
GRS Certified 2.47 Carat No Heat Royal Blue Sapphire Diamond 18K Art Deco Ring – Assay Jewelers
GRS Certified 6.03 Carat No Heat Burma Royal Blue Star Sapphire & Diamond Ring – Assay Jewelers
14.36 Carat Colombian Emerald AGL/GRS Certified & Diamond 18K Gold Cocktail Ring – Assay Jewelers
GIA Certified Type A Fei Cui Jadeite Jade Pierced Carving Yellow Gold Pendant – Assay Jewelers
GRS Certified 17.85 Carat Emerald & Diamond Filigree 14K Yellow Gold Necklace – Assay Jewelers
GRS Certified 4.13 Carat Heart Sapphire Diamond 18K White Gold Pendant Necklace – Assay Jewelers
GIA Certified 5.3 Carat Fancy Pink Orange & White Diamond 18K Drop Earrings – Assay Jewelers
GIA Certified 8.69 Carat Cabochon Black Opal & Diamond in Platinum Cocktail Ring – Assay Jewelers
GIA Certified 0.45 Carat Heart Pink Diamond Platinum 18K Rose Gold Stud Earrings – Assay Jewelers
GIA Certified 2.19 Carat Emerald Cut Diamond Channel 18K White Gold Wedding Band – Assay Jewelers
GIA Certified Large Carved Jadeite Jade Fei Cui Boy Turtle Yellow Gold Pendant – Assay Jewelers
GIA Certified 1.11 Carat Fancy Brown Emerald Cut Diamond Drop Pendant Necklace – Assay Jewelers
GIA Certified 3.93 Carat Pear Cut &Diamond Halo Drop Earrings in 18K White Gold – Assay Jewelers
GIA Certified 3.5 Carat Heart Blue Sri Lanka Sapphire Diamond 18K Drop Pendant – Assay Jewelers
GIA Certified Type A Jadeite Jade & Old Cut Diamond 18K Gold Halo Starburst Ring – Assay Jewelers
GIA Certified 1.55 Carat G/VS1 Marquise Diamond Halo 18K Engagement Ring – Assay Jewelers
GIA Certified Fancy Light Pink Diamond Elongated Halo Cluster Ring – Assay Jewelers
IGI Certified Fancy Deep Yellow & Greenish Yellow Diamond 18K Two Tone Gold Ring – Assay Jewelers
GIA Certified 0.30 Carat Fancy Deep Pink Diamond 18K White Gold Halo Ring – Assay Jewelers
GIA Certified 9.46 Carat Green Cats Eye Chrysoberyl 14K Gold Art Deco Ring – Assay Jewelers
GIA Certified 5.11 Carat Cushion Blue Sapphire 14K Yellow Gold Solitaire Ring – Assay Jewelers
GIA Certified 13.03 Carat Flawless Radiant Fancy Yellow Diamond Ring – Assay Jewelers
GIA Certified 8.53 Carat Spessartine Garnet & Triangle Diamond Pendant Necklace – Assay Jewelers
GIA Certified 2.3 Carat Oval Ruby & Round Diamond Halo 18K Stud Earrings – Assay Jewelers
GIA Certified Burma Ruby Diamond Halo 18K Two Tone Gold Necklace & Earring Set – Assay Jewelers
GIA Certified 1.47 Carat Ruby & Diamond Halo Floating Pendant Necklace – Assay Jewelers
GRS Certified 48 Carat Star Ruby Cabochon & Diamond in 18K Rose Gold Halo Ring – Assay Jewelers
GIA Certified 1.22 Carat Fancy Intense Orange-Yellow Diamond Floral Halo Ring – Assay Jewelers
Chaumet Paris GIA Certified Cushion Cut Diamond 18K White Gold Tension Set Ring – Assay Jewelers
GIA Certified 1.38 Carat Fancy Orangy Brown Diamond Enamel 18K Gold Dome Ring – Assay Jewelers
GIA Certified 1.07 Carat Fancy Light Purplish Pink Diamond Halo Cocktail Ring – Assay Jewelers
GIA Certified 13.14 Carat Fancy Intense Yellow Diamond VVS1 Halo 18K Ring – Assay Jewelers
GIA Certified Type A Fei Cui Jadeite Jade Diamond Halo Platinum Split Shank Ring – Assay Jewelers
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GIA Certified 1.94 Carat Old Euro Cut Diamond I/VS1 White Gold Solitaire Ring – Assay Jewelers
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GIA Certified 3.01 Carat E/VS1 Diamond Platinum Three Stone Engagement Ring – Assay Jewelers
GIA Certified 4.65 Carat Fancy Deep Yellow Diamond Solitaire Bezel Set Mens Ring – Assay Jewelers
GIA Certified 4.12 Carat Fancy Yellow Radiant Cut Diamond Solitaire Unisex Ring – Assay Jewelers
GIA Certified 4.12 Carat Fancy Yellow Radiant Cut Diamond Halo Engagement Ring – Assay Jewelers
GIA Certified 4.12 Carat Fancy Yellow VS1 Radiant Diamond Halo Engagement Ring – Assay Jewelers
Save 19%
GIA Certified 3.07 Carat Colombian Emerald & Diamond Platinum Ballerina Ring – Assay Jewelers
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GIA Certified 2.53 Carat Pear Cut Brown Diamond Halo Pave Engagement Ring – Assay Jewelers
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GIA Certified 2.68 Carat Old Euro Cut Diamond Stud Earrings – Assay Jewelers
GIA Certified 3.01 Carat E/VS1 Cushion Cut Diamond Mens Solitaire Bezel Ring – Assay Jewelers
8.23 Carat Colombian Emerald & Diamond 18K Gold Mens Ring | GRS Certified – Assay Jewelers
Save 16%
GIA Certified High Jewelry Sapphire and Diamond Eye Motif Pendant-Brooch – Assay Jewelers
Save 12%
GIA Certified 2.42 Carat Purplish Pink Sapphire & Diamond Three Stone Ring – Assay Jewelers
Save 12%

We carry certified diamonds, rubies sapphires, and emeralds, alongside rare fancy color diamonds and collector-grade colored stones. Every piece comes set in fine gold or platinum.

Browse by category — certified rings, necklaces, earrings, and bracelets — or use the filters above to narrow by gemstone, price, or style. If you're new to gemstone grading, our Collector's Corner blog covers what certifications mean and what to look for in a lab report.

For significant purchases, we share the full certificate before you commit. Contact us with the piece you're interested in and we'll send it directly.

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