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
Save 12%
Vintage Art Deco AGL Cert. 10 Carat Colombian Emerald Pear Drop Platinum Earrings – Assay Jewelers
Save 12%

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 19%
Vintage EGL Certified 2.01ct Brilliant Cut Diamond Bezel 18K Yellow Gold Bangle – Assay Jewelers
Certified
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Vintage GIA Certified Black Opal Mixed Cut Diamond Halo 14K Cocktail Ring – Assay Jewelers
Certified
GIA Certified 6.01 Carat Sapphire & Diamond in Halo Engagement Ring – Assay Jewelers
Certified
GIA Certified 8.02 Carat TW Natural Round Cut Diamond Stud Earrings – Assay Jewelers
Certified
GIA Certified 10.47 Carat Green Oval Cut Tourmaline & Diamond in Platinum Cocktail Ring – Assay Jewelers
Certified
GIA Certified 5.13 Carat Princess Cut M/SI2 Diamond Solitaire Engagement Ring – Assay Jewelers
Certified
GIA Certified 2 Carat Diamond in 14K Gold Solitaire Men's Ring – Assay Jewelers
Certified
AGL Certified 3.5 Carat No Heat Blue Sapphire Platinum Mens Ring – Assay Jewelers
Certified
Certified 5.80 Carat Natural Jadeite Jade and Baguette Diamond Platinum Ring – Assay Jewelers
Certified
Certified 30 Carat Untreated Jadeite Jade & Diamond Platinum Ring – Assay Jewelers
Certified
Certified 5.11 Carat Jadeite Jade and Diamond Platinum Pendant Necklace – Assay Jewelers
Certified
Certified 4.17 Carat Untreated Jadeite Jade and Baguette Diamond Platinum Ring – Assay Jewelers
Certified
Certified 15 Carat Jadeite Jade A Fei Cui and Diamond Split Platinum Ring – Assay Jewelers
Certified
Certified Untreated 8.14 Carat Jadeite Jade A Fei Cui Platinum Ring – Assay Jewelers
Certified
GIA Certified 6.06 Carat Fancy Intense Yellow Pear Cut Diamond 18K Ring – Assay Jewelers
Certified
EGL Certified 1.03ct Round Diamond Platinum Solitaire Ring – Assay Jewelers
Certified
GIA Certified Natural Pink Saltwater Conch Pearl Vintage Necklace – Assay Jewelers
Certified
1.65 Carat Round and Princess Cut Diamond Platinum Engagement Ring – Assay Jewelers
Certified
EGL Certified 1.01 Carat Round F-G/SI3 Diamond Platinum Bypass Engagement Ring – Assay Jewelers
Certified
GIA Certified 1.5 Carat H/I2 Diamond 2 Piece Engagement & Wedding Ring Set – Assay Jewelers
Certified
3.06ct Heart Cut K/VS2 GIA Certified Platinum Engagement Ring – Assay Jewelers
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AGL Certified 3.52ct Cushion Colombian Emerald Half Moon Diamond Ring – Assay Jewelers
GIA Certified 1.63ct Padparadscha Sapphire & Diamond Ring – Assay Jewelers
Certified
GIA Certified 9 Carat Jadeite Jade Type A and Diamond Halo Ring – Assay Jewelers
Save 16%
GIA Certified 16.70 Carat Aquamarine and Diamond Vintage Cocktail Ring – Assay Jewelers
Certified
GIA Certified 6.75 Carat Oval Blue Sapphire and Diamond Ballerina Ring – Assay Jewelers
Certified
GIA Certified 6.40 Carat Blue Indicolite Tourmaline Vintage Retro Platinum Ring – Assay Jewelers
Certified
Certified 2.69 Carat Oval Bright Green Untreated A Jadeite Jade Platinum Ring – Assay Jewelers
Certified
AGL Certified 3.04ct Pigeon Blood Ruby with Diamond Halo Ring – Assay Jewelers
Antique GIA Certified 6ct Cabochon Sapphire & Diamond Brooch – Assay Jewelers
Certified
4.73ct GRS Certified Oval Blue Sapphire with Double Diamond Halo Ring – Assay Jewelers
Certified
GRS Certified 2.33ct Pink Sapphire Diamond Ring 18KWhite Gold – Assay Jewelers
Certified
9 Carat Untreated Jadeite Jade Fei Cui and Diamond Platinum Ring HK Certified – Assay Jewelers
Certified
1.85 Carat Untreated Jadeite Jade and Diamond Platinum Ring HK Certified – Assay Jewelers
Certified
GIA Certified 15.07 Carat Emerald Cut Pink Tourmaline and Diamond Ring – Assay Jewelers
Certified
GIA Certified 3.55ct Pear Cut Tsavorite Diamond Cocktail Ring – Assay Jewelers
Save 12%
AGL Certified 10.88ct Burma Star Ruby Vintage Platinum Ring – Assay Jewelers
GIA Certified Fancy Orangy Pink Diamond Double Halo 18K Gold Ring – Assay Jewelers
Certified
AGL Certified 10.73 Carat Cabochon Sapphire and Diamond Ring in 18K White Gold – Assay Jewelers
Certified
Vintage EGL Certified 2.01ct Brilliant Cut Diamond Bezel 18K Yellow Gold Bangle – Assay Jewelers
Certified
Vintage GIA Certified 5 Carat Heart Blue Sapphire, Diamond & Pearl Necklace – Assay Jewelers
Certified
GIA Certified 2.69ct Fancy Orangy Pink Diamond Halo Ring – Assay Jewelers
Certified
GIA Certified 3.25 Carat Yellow Diamond Interlocking Heart Shank Engagement Ring – Assay Jewelers
Certified
GIA Certified 3.2 Carat No Heat Pink Sapphire Oval and Diamond 3 Stone Ring – Assay Jewelers
Certified
AGL Certified 10.10 Ct No Heat Ceylon Cornflower Blue Sapphire Diamond Ring – Assay Jewelers
Certified
AGL Certified 4.49ct Burma Blue Sapphire Diamond 3-Stone Ring – Assay Jewelers
Save 12%
GIA Certified 3.96 Carat Round Fancy Brown To Yellow Diamond Drop Earrings – Assay Jewelers
Certified
GIA Certified 5.38 Carat Black Opal and Diamond Ballerina Vintage Platinum Ring – Assay Jewelers
Certified
GIA Certified 11.22 Carat Green Tourmaline and Diamond Platinum Filigree Ring – Assay Jewelers
Certified

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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