What makes Assay’s sapphire jewelry high-end?

Assay offers rare, natural sapphires—many certified by GIA or AGL. These gems are set in luxurious materials like 18K gold and platinum, often featuring unique designs or vintage styles.

Are the sapphires in this collection natural and untreated?

Many sapphires in this collection are natural and untreated, including no-heat sapphires from Sri Lanka and Burma. These rare gems come with certification from trusted labs like GIA and AGL.

Can I view a sapphire piece in person before buying?

Yes, Assay offers private viewings by appointment. You can contact them to schedule a personal consultation and see your desired piece up close.

How is my sapphire jewelry shipped and protected?

Your order is shipped via insured carriers in discreet, secure packaging with a direct signature required. Tracking information is provided, and Assay ensures the safety and authenticity of your purchase.

Superior Sapphires

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18K Solid White Gold Channel Set Baguette Cut Blue Sapphire Band Ring – Assay Jewelers

18K Solid White Gold Channel Set Baguette Cut Blue Sapphire Band Ring – Assay Jewelers

18K Solid White Gold Channel Set Baguette Cut Blue Sapphire Band Ring

£3,759.00 GBP

GRS Certified 2.33ct Pink Sapphire Diamond Ring 18KWhite Gold – Assay Jewelers

GRS Certified 2.33ct Pink Sapphire Diamond Ring 18KWhite Gold – Assay Jewelers

Certified

GRS Certified 2.33ct Pink Sapphire Diamond Ring 18KWhite Gold

£7,580.00 GBP ~~£9,475.00 GBP~~

GIA Certified 6.03 Carat Oval Ceylon Sri Lanka Sapphire & Diamond Platinum Ring – Assay Jewelers

GIA Certified 6.03 Carat Oval Ceylon Sri Lanka Sapphire & Diamond Platinum Ring – Assay Jewelers

Save 19%

GIA Certified 6.03 Carat Oval Ceylon Sri Lanka Sapphire & Diamond Platinum Ring

£20,046.00 GBP ~~£25,057.00 GBP~~

GIA Certified 4.15 Carat Oval Thai Sapphire & Diamond in Platinum Vintage Ring – Assay Jewelers

GIA Certified 4.15 Carat Oval Thai Sapphire & Diamond in Platinum Vintage Ring – Assay Jewelers

Save 19%

GIA Certified 4.15 Carat Oval Thai Sapphire & Diamond in Platinum Vintage Ring

£10,650.00 GBP ~~£13,312.00 GBP~~

Wendy Yue Opal & Sapphire Dragonfly 18K White Gold Dome Ring – Assay Jewelers

Wendy Yue Opal & Sapphire Dragonfly 18K White Gold Dome Ring – Assay Jewelers

Save 20%

Wendy Yue Opal & Sapphire Dragonfly 18K White Gold Dome Ring

£13,907.00 GBP ~~£17,384.00 GBP~~

Cartier Paris Art Deco Royal Blue 2.3 Carat No Heat Sapphire and Diamond Ring – Assay Jewelers

Cartier Love Band 18K White Gold 6mm Men's Band Size 12.5 Ring – Assay Jewelers

Cartier Paris Art Deco Royal Blue 2.3 Carat No Heat Sapphire and Diamond Ring – Assay Jewelers

Cartier Paris Art Deco Royal Blue 2.3 Carat No Heat Sapphire and Diamond Ring

£21,534.00 GBP

Multicolor Sapphire Pear Marquise Mix & Diamond Cluster 18K White Gold Dome Ring – Assay Jewelers

Multicolor Sapphire Pear Marquise Mix & Diamond Cluster 18K White Gold Dome Ring – Assay Jewelers

Multicolor Sapphire Pear Marquise Mix & Diamond Cluster 18K White Gold Dome Ring

£6,805.00 GBP

4.02 Carat No Heat Ceylon Sapphire In Platinum Art Deco Ring – Assay Jewelers

4.02 Carat No Heat Ceylon Sapphire In Platinum Art Deco Ring – Assay Jewelers

4.02 Carat No Heat Ceylon Sapphire In Platinum Art Deco Ring

£37,194.00 GBP

15.63 Carat Multi Color Sapphire & Diamond Bracelet in 18K White Gold Station – Assay Jewelers

15.63 Carat Multi Color Sapphire & Diamond Bracelet in 18K White Gold Station – Assay Jewelers

Save 19%

15.63 Carat Multi Color Sapphire & Diamond Bracelet in 18K White Gold Station

£9,397.00 GBP ~~£11,746.00 GBP~~

AGL Cert. 5 Carat Ceylon Blue Sapphire Art Deco Era Platinum Diamond Ring – Assay Jewelers

AGL Cert. 5 Carat Ceylon Blue Sapphire Art Deco Era Platinum Diamond Ring – Assay Jewelers

Save 16%

AGL Cert. 5 Carat Ceylon Blue Sapphire Art Deco Era Platinum Diamond Ring

£26,060.00 GBP ~~£31,322.00 GBP~~

GIA Certified High Jewelry Sapphire and Diamond Eye Motif Pendant-Brooch – Assay Jewelers

GIA Certified High Jewelry Sapphire and Diamond Eye Motif Pendant-Brooch – Assay Jewelers

Save 19%

GIA Certified High Jewelry Sapphire and Diamond Eye Motif Pendant-Brooch

£32,896.00 GBP ~~£41,117.00 GBP~~

GIA Certified 2.42 Carat Purplish Pink Sapphire & Diamond Three Stone Ring – Assay Jewelers

GIA Certified 2.42 Carat Purplish Pink Sapphire & Diamond Three Stone Ring – Assay Jewelers

Save 20%

GIA Certified 2.42 Carat Purplish Pink Sapphire & Diamond Three Stone Ring

£7,095.00 GBP ~~£8,872.00 GBP~~

7.7 Carat No-Heat Blue Sapphire and Diamond Ring Convertible to Pendant – Assay Jewelers

7.7 Carat No-Heat Blue Sapphire and Diamond Ring Convertible to Pendant – Assay Jewelers

7.7 Carat No-Heat Blue Sapphire and Diamond Ring Convertible to Pendant

£96,313.00 GBP

AGL Certified 5.75 Carat Burma No Heat Cushion Blue Sapphire and Diamond Ring – Assay Jewelers

AGL Certified 5.75 Carat Burma No Heat Cushion Blue Sapphire and Diamond Ring – Assay Jewelers

AGL Certified 5.75 Carat Burma No Heat Cushion Blue Sapphire and Diamond Ring

£135,801.00 GBP

GIA Certified 6.82 Carat Pear Cut No Heat Blue Sapphire Drop Pendant Necklace – Assay Jewelers

GIA Certified 6.82 Carat Pear Cut No Heat Blue Sapphire Drop Pendant Necklace – Assay Jewelers

GIA Certified 6.82 Carat Pear Cut No Heat Blue Sapphire Drop Pendant Necklace

£140,484.00 GBP

GIA Certified 5.35 Carat Cushion Cut Burma Sapphire Vintage Ring – Assay Jewelers

GIA Certified 5.35 Carat Cushion Cut Burma Sapphire Vintage Ring – Assay Jewelers

GIA Certified 5.35 Carat Cushion Cut Burma Sapphire Vintage Ring

£117,064.00 GBP

AGL Certified No Heat Ceylon Pink Sapphire and Diamond Platinum Floral Brooch – Assay Jewelers

AGL Certified No Heat Ceylon Pink Sapphire and Diamond Platinum Floral Brooch – Assay Jewelers

Save 20%

AGL Certified No Heat Ceylon Pink Sapphire and Diamond Platinum Floral Brooch

£41,149.00 GBP ~~£51,438.00 GBP~~

45 Carat Star Sapphire Ceylon No Heat Blue Art Deco Pendant – Assay Jewelers

45 Carat Star Sapphire Ceylon No Heat Blue Art Deco Pendant – Assay Jewelers

45 Carat Star Sapphire Ceylon No Heat Blue Art Deco Pendant

£119,882.00 GBP

GRS Certified 7.15 Carat Vivid Blue Sapphire & Diamond 18K Ring – Assay Jewelers

GRS Certified 7.15 Carat Vivid Blue Sapphire & Diamond 18K Ring – Assay Jewelers

Save 19%

GRS Certified 7.15 Carat Vivid Blue Sapphire & Diamond 18K Ring

£48,173.00 GBP ~~£60,216.00 GBP~~

GIA Cert. 14.56 Carat Purple Star Sapphire No Heat Sri Lanka Sunburst Ring – Assay Jewelers

GIA Cert. 14.56 Carat Purple Star Sapphire No Heat Sri Lanka Sunburst Ring – Assay Jewelers

Save 12%

GIA Cert. 14.56 Carat Purple Star Sapphire No Heat Sri Lanka Sunburst Ring

£39,755.00 GBP ~~£45,385.00 GBP~~

15.15 Carat Blue Star Sapphire 18K & 22K Bar Link Chain Retro Pendant Necklace – Assay Jewelers

15.15 Carat Blue Star Sapphire 18K & 22K Bar Link Chain Retro Pendant Necklace – Assay Jewelers

15.15 Carat Blue Star Sapphire 18K & 22K Bar Link Chain Retro Pendant Necklace

£28,973.00 GBP

10.36 Carat No Heat Sri Lanka Oval Blue Sapphire and Diamond Ring – Assay Jewelers

10.36 Carat No Heat Sri Lanka Oval Blue Sapphire and Diamond Ring – Assay Jewelers

Save 12%

10.36 Carat No Heat Sri Lanka Oval Blue Sapphire and Diamond Ring

£80,786.00 GBP ~~£92,299.00 GBP~~

54.31 Carat No Heat Burma Star Blue Sapphire and Diamond Ring AGL Certified – Assay Jewelers

54.31 Carat No Heat Burma Star Blue Sapphire and Diamond Ring AGL Certified – Assay Jewelers

54.31 Carat No Heat Burma Star Blue Sapphire and Diamond Ring AGL Certified

£381,164.00 GBP

7.77 Carat Royal Blue Sapphire Ceylon No Heat Cushion Cut and Diamond Ring – Assay Jewelers

7.77 Carat Royal Blue Sapphire Ceylon No Heat Cushion Cut and Diamond Ring – Assay Jewelers

7.77 Carat Royal Blue Sapphire Ceylon No Heat Cushion Cut and Diamond Ring

£341,832.00 GBP

10.35 Carat Purple Sapphire No Heat Ceylon and Diamond Cluster Ring – Assay Jewelers

10.35 Carat Purple Sapphire No Heat Ceylon and Diamond Cluster Ring – Assay Jewelers

10.35 Carat Purple Sapphire No Heat Ceylon and Diamond Cluster Ring

£103,024.00 GBP

47.10 Carat No-Heat Yellow Sapphire & Old Euro Diamond Vintage Ring – Assay Jewelers

47.10 Carat No-Heat Yellow Sapphire & Old Euro Diamond Vintage Ring – Assay Jewelers

47.10 Carat No-Heat Yellow Sapphire & Old Euro Diamond Vintage Ring

£131,119.00 GBP

20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring – Assay Jewelers

20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring – Assay Jewelers

20 Carat Royal Blue No Heat Burma Sapphire & Diamond Ring

£306,236.00 GBP

AGL Certified 3.5 Carat No Heat Blue Sapphire Platinum Mens Ring – Assay Jewelers

AGL Certified 3.5 Carat No Heat Blue Sapphire Platinum Mens Ring – Assay Jewelers

Certified

AGL Certified 3.5 Carat No Heat Blue Sapphire Platinum Mens Ring

£8,653.00 GBP ~~£10,814.00 GBP~~

25ct Pink Sapphire & Diamond 18K Rose Gold Multi-Row Bangle – Assay Jewelers

25ct Pink Sapphire & Diamond 18K Rose Gold Multi-Row Bangle – Assay Jewelers

25ct Pink Sapphire & Diamond 18K Rose Gold Multi-Row Bangle

£38,917.00 GBP

GIA Certified 1.63ct Padparadscha Sapphire & Diamond Ring – Assay Jewelers

GIA Certified 1.63ct Padparadscha Sapphire & Diamond Ring – Assay Jewelers

Certified

GIA Certified 1.63ct Padparadscha Sapphire & Diamond Ring

£7,416.00 GBP ~~£9,272.00 GBP~~

Sapphire and Diamond 18K Gold Leopard Motif Choker Necklace – Assay Jewelers

Sapphire and Diamond 18K Gold Leopard Motif Choker Necklace – Assay Jewelers

Sapphire and Diamond 18K Gold Leopard Motif Choker Necklace

£24,118.00 GBP

6.28ct Royal Ceylon Blue Sapphire Diamond Halo Stud Earrings – Assay Jewelers

6.28ct Royal Ceylon Blue Sapphire Diamond Halo Stud Earrings – Assay Jewelers

Save 12%

6.28ct Royal Ceylon Blue Sapphire Diamond Halo Stud Earrings

£24,274.00 GBP ~~£27,720.00 GBP~~

5.83ct Oval No-Heat Blue Sapphire Diamond Halo Platinum Necklace – Assay Jewelers

5.83ct Oval No-Heat Blue Sapphire Diamond Halo Platinum Necklace – Assay Jewelers

Save 12%

5.83ct Oval No-Heat Blue Sapphire Diamond Halo Platinum Necklace

£48,541.00 GBP ~~£55,502.00 GBP~~

4.22ct Vivid Blue Oval Cut Sapphire & Diamond 3 Stone Ring – Assay Jewelers

4.22ct Vivid Blue Oval Cut Sapphire & Diamond 3 Stone Ring – Assay Jewelers

Save 12%

4.22ct Vivid Blue Oval Cut Sapphire & Diamond 3 Stone Ring

£20,242.00 GBP ~~£23,116.00 GBP~~

Antique GIA Certified 6ct Cabochon Sapphire & Diamond Brooch – Assay Jewelers

Antique GIA Certified 6ct Cabochon Sapphire & Diamond Brooch – Assay Jewelers

Certified

Antique GIA Certified 6ct Cabochon Sapphire & Diamond Brooch

£17,807.00 GBP ~~£22,254.00 GBP~~

4.73ct GRS Certified Oval Blue Sapphire with Double Diamond Halo Ring – Assay Jewelers

4.73ct GRS Certified Oval Blue Sapphire with Double Diamond Halo Ring – Assay Jewelers

Certified

4.73ct GRS Certified Oval Blue Sapphire with Double Diamond Halo Ring

£15,551.00 GBP ~~£19,435.00 GBP~~

AGL Certified 10.73 Carat Cabochon Sapphire and Diamond Ring in 18K White Gold – Assay Jewelers

AGL Certified 10.73 Carat Cabochon Sapphire and Diamond Ring in 18K White Gold – Assay Jewelers

Certified

AGL Certified 10.73 Carat Cabochon Sapphire and Diamond Ring in 18K White Gold

Price Upon Request

4.71ct Oval Cut No Heat Sri Lanka Blue Sapphire Ring – Assay Jewelers

4.71ct Oval Cut No Heat Sri Lanka Blue Sapphire Ring – Assay Jewelers

Save 12%

4.71ct Oval Cut No Heat Sri Lanka Blue Sapphire Ring

£40,068.00 GBP ~~£45,765.00 GBP~~

AGL Certified 10.10 Ct No Heat Ceylon Cornflower Blue Sapphire Diamond Ring – Assay Jewelers

AGL Certified 10.10 Ct No Heat Ceylon Cornflower Blue Sapphire Diamond Ring – Assay Jewelers

Certified

AGL Certified 10.10 Ct No Heat Ceylon Cornflower Blue Sapphire Diamond Ring

£77,239.00 GBP ~~£88,246.00 GBP~~

AGL Certified 4.49ct Burma Blue Sapphire Diamond 3-Stone Ring – Assay Jewelers

AGL Certified 4.49ct Burma Blue Sapphire Diamond 3-Stone Ring – Assay Jewelers

Save 20%

AGL Certified 4.49ct Burma Blue Sapphire Diamond 3-Stone Ring

£34,250.00 GBP ~~£42,817.00 GBP~~

GIA Certified 26 Carat Sapphire Cabochon & Diamond Art Deco Dome 18K Ring – Assay Jewelers

GIA Certified 26 Carat Sapphire Cabochon & Diamond Art Deco Dome 18K Ring – Assay Jewelers

Certified

GIA Certified 26 Carat Sapphire Cabochon & Diamond Art Deco Dome 18K Ring

£49,739.00 GBP ~~£62,173.00 GBP~~

AGL Certified 10.26 Carat Cushion Cut Pink Sapphire, Ruby, & Diamond Necklace – Assay Jewelers

AGL Certified 10.26 Carat Cushion Cut Pink Sapphire, Ruby, & Diamond Necklace – Assay Jewelers

Certified

AGL Certified 10.26 Carat Cushion Cut Pink Sapphire, Ruby, & Diamond Necklace

£47,664.00 GBP ~~£59,581.00 GBP~~

GRS Certified 5.79 Carat Oval Royal Blue Sapphire and Diamond Halo Ring – Assay Jewelers

GRS Certified 5.79 Carat Oval Royal Blue Sapphire and Diamond Halo Ring – Assay Jewelers

Certified

GRS Certified 5.79 Carat Oval Royal Blue Sapphire and Diamond Halo Ring

£50,443.00 GBP ~~£63,050.00 GBP~~

Antique Art Deco Platinum Filigree Blue Sapphire & Diamond Bracelet – Assay Jewelers

Antique Art Deco Platinum Filigree Blue Sapphire & Diamond Bracelet – Assay Jewelers

Save 12%

Antique Art Deco Platinum Filigree Blue Sapphire & Diamond Bracelet

£52,244.00 GBP ~~£59,691.00 GBP~~

AGL Cert. Antique 20 Carat No Heat Ceylon Yellow Sapphire Art Deco Filigree Pendant – Assay Jewelers

AGL Cert. Antique 20 Carat No Heat Ceylon Yellow Sapphire Art Deco Filigree Pendant – Assay Jewelers

Save 12%

AGL Cert. Antique 20 Carat No Heat Ceylon Yellow Sapphire Art Deco Filigree Pendant

£43,294.00 GBP ~~£49,465.00 GBP~~

AGL Certified 9.55 Carat No Heat Burma Pink Sapphire Detachable Ring To Pendant – Assay Jewelers

AGL Certified 9.55 Carat No Heat Burma Pink Sapphire Detachable Ring To Pendant – Assay Jewelers

Certified

AGL Certified 9.55 Carat No Heat Burma Pink Sapphire Detachable Ring To Pendant

£149,841.00 GBP

AGL Certified 4.07 Carat No Heat Burma Sapphire & Half Moon Diamond Ring – Assay Jewelers

AGL Certified 4.07 Carat No Heat Burma Sapphire & Half Moon Diamond Ring – Assay Jewelers

Certified

AGL Certified 4.07 Carat No Heat Burma Sapphire & Half Moon Diamond Ring

£36,443.00 GBP ~~£45,557.00 GBP~~

5.10 Carat No Heat Ceylon Pink Sapphire East West Floating Necklace – Assay Jewelers

5.10 Carat No Heat Ceylon Pink Sapphire East West Floating Necklace – Assay Jewelers

Save 12%

5.10 Carat No Heat Ceylon Pink Sapphire East West Floating Necklace

£33,381.00 GBP ~~£38,133.00 GBP~~

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Frequently Asked Questions

Assay offers rare, natural sapphires—many certified by GIA or AGL. These gems are set in luxurious materials like 18K gold and platinum, often featuring unique designs or vintage styles.
Many sapphires in this collection are natural and untreated, including no-heat sapphires from Sri Lanka and Burma. These rare gems come with certification from trusted labs like GIA and AGL.
Yes, Assay offers private viewings by appointment. You can contact them to schedule a personal consultation and see your desired piece up close.
Your order is shipped via insured carriers in discreet, secure packaging with a direct signature required. Tracking information is provided, and Assay ensures the safety and authenticity of your purchase.

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Superior Sapphires

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Frequently Asked Questions