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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AGL Certified 8 Carat No Heat Kashmir Sapphire, Burma Ruby, & Diamond Stack Ring – Assay Jewelers

AGL Certified 8 Carat No Heat Kashmir Sapphire, Burma Ruby, & Diamond Stack Ring – Assay Jewelers

Certified

AGL Certified 8 Carat No Heat Kashmir Sapphire, Burma Ruby, & Diamond Stack Ring

£502,414.00 GBP

7.19 Carat Color Changing No Heat Ceylon Sapphire and Diamond Ring – Assay Jewelers

7.19 Carat Color Changing No Heat Ceylon Sapphire and Diamond Ring – Assay Jewelers

7.19 Carat Color Changing No Heat Ceylon Sapphire and Diamond Ring

£105,185.00 GBP

GIA Certified 8.46 Carat No Heat Blue Sapphire & Diamond Art Deco Style Ring – Assay Jewelers

GIA Certified 8.46 Carat No Heat Blue Sapphire & Diamond Art Deco Style Ring – Assay Jewelers

Certified

GIA Certified 8.46 Carat No Heat Blue Sapphire & Diamond Art Deco Style Ring

£57,484.00 GBP ~~£65,700.00 GBP~~

Rare 29.51 Carat No Heat Ceylon Blue Sapphire Cabochon Solitaire Mens Ring – Assay Jewelers

Rare 29.51 Carat No Heat Ceylon Blue Sapphire Cabochon Solitaire Mens Ring – Assay Jewelers

Rare 29.51 Carat No Heat Ceylon Blue Sapphire Cabochon Solitaire Mens Ring

£284,083.00 GBP

AGL Certified 10.88 Carat Cushion Cut Pink Sapphire & Diamond Halo Ring – Assay Jewelers

AGL Certified 10.88 Carat Cushion Cut Pink Sapphire & Diamond Halo Ring – Assay Jewelers

Certified

AGL Certified 10.88 Carat Cushion Cut Pink Sapphire & Diamond Halo Ring

£36,135.00 GBP ~~£41,306.00 GBP~~

No Heat 4.79 Carat Blue Ceylon Sapphire with Diamonds in 18K Gold Ring – Assay Jewelers

No Heat 4.79 Carat Blue Ceylon Sapphire with Diamonds in 18K Gold Ring – Assay Jewelers

No Heat 4.79 Carat Blue Ceylon Sapphire with Diamonds in 18K Gold Ring

£34,156.00 GBP

EGL Certified 5.02 Carat Pear Diamond Pendant and Diamond Halo & Sapphire Detail – Assay Jewelers

EGL Certified 5.02 Carat Pear Diamond Pendant and Diamond Halo & Sapphire Detail – Assay Jewelers

Certified

EGL Certified 5.02 Carat Pear Diamond Pendant and Diamond Halo & Sapphire Detail

£123,904.00 GBP

GRS Certified 50.11 Carat Cushion No Heat Sri Lanka Blue Sapphire Ring – Assay Jewelers

GRS Certified 50.11 Carat Cushion No Heat Sri Lanka Blue Sapphire Ring – Assay Jewelers

Certified

GRS Certified 50.11 Carat Cushion No Heat Sri Lanka Blue Sapphire Ring

£356,863.00 GBP

GRS Certified 18.29 Carat No Heat Sri Lanka Pastel Blue Star Sapphire Ring – Assay Jewelers

GRS Certified 18.29 Carat No Heat Sri Lanka Pastel Blue Star Sapphire Ring – Assay Jewelers

Sold Out

GRS Certified 18.29 Carat No Heat Sri Lanka Pastel Blue Star Sapphire Ring

AGL Certified 13.81 Carat Ceylon No Heat Blue Sapphire Platinum Vintage Ring – Assay Jewelers

AGL Certified 13.81 Carat Ceylon No Heat Blue Sapphire Platinum Vintage Ring – Assay Jewelers

Certified

AGL Certified 13.81 Carat Ceylon No Heat Blue Sapphire Platinum Vintage Ring

£190,268.00 GBP

GIA Certified 3.12 Carat Cushion Cut No Heat Sapphire & Diamond Ring – Assay Jewelers

GIA Certified 3.12 Carat Cushion Cut No Heat Sapphire & Diamond Ring – Assay Jewelers

Certified

GIA Certified 3.12 Carat Cushion Cut No Heat Sapphire & Diamond Ring

£25,150.00 GBP ~~£28,698.00 GBP~~

Vintage Platinum Diamond & Pink Sapphire Bead Bracelet – Assay Jewelers

Vintage Platinum Diamond & Pink Sapphire Bead Bracelet – Assay Jewelers

Save 12%

Vintage Platinum Diamond & Pink Sapphire Bead Bracelet

£11,323.00 GBP ~~£12,893.00 GBP~~

Cabochon Cut Ruby, Sapphire, Jade, and Diamond 18K/Platinum Brooch Pin – Assay Jewelers

Cabochon Cut Ruby, Sapphire, Jade, and Diamond 18K/Platinum Brooch Pin – Assay Jewelers

Cabochon Cut Ruby, Sapphire, Jade, and Diamond 18K/Platinum Brooch Pin

£10,993.00 GBP

~16 Carat Cabochon Cut Burma Sapphire AGL Certified and Diamond 14K Earrings – Assay Jewelers

~16 Carat Cabochon Cut Burma Sapphire AGL Certified and Diamond 14K Earrings – Assay Jewelers

Certified

~16 Carat Cabochon Cut Burma Sapphire AGL Certified and Diamond 14K Earrings

£138,987.00 GBP

AGL Certified 30 Carat No Heat Ceylon Blue Star Sapphire & Diamond Halo Ring – Assay Jewelers

AGL Certified 30 Carat No Heat Ceylon Blue Star Sapphire & Diamond Halo Ring – Assay Jewelers

Certified

AGL Certified 30 Carat No Heat Ceylon Blue Star Sapphire & Diamond Halo Ring

£64,433.00 GBP ~~£73,601.00 GBP~~

Victorian Era 3.82 Carat No Heat Sapphire and Diamond GRS Certified Brooch – Assay Jewelers

Victorian Era 3.82 Carat No Heat Sapphire and Diamond GRS Certified Brooch – Assay Jewelers

Certified

Victorian Era 3.82 Carat No Heat Sapphire and Diamond GRS Certified Brooch

£48,101.00 GBP ~~£54,994.00 GBP~~

8.64 Carat AGL Certified Ceylon Sapphire and Diamond Art Deco Brooch Pin – Assay Jewelers

8.64 Carat AGL Certified Ceylon Sapphire and Diamond Art Deco Brooch Pin – Assay Jewelers

Certified

8.64 Carat AGL Certified Ceylon Sapphire and Diamond Art Deco Brooch Pin

£27,655.00 GBP ~~£31,581.00 GBP~~

Multi Color Sapphire Bead and Diamond Bracelet in Designed 18K Yellow Gold – Assay Jewelers

Multi Color Sapphire Bead and Diamond Bracelet in Designed 18K Yellow Gold – Assay Jewelers

Multi Color Sapphire Bead and Diamond Bracelet in Designed 18K Yellow Gold

£9,187.00 GBP

Natural 1.14 Carat Oval Cut Blue Sapphire with Round & Baguette Cut Diamonds in a Swirled 18K White Gold Ring Setting – Assay Jewelers

Natural 1.14 Carat Oval Cut Blue Sapphire with Round & Baguette Cut Diamonds in a Swirled 18K White Gold Ring Setting – Assay Jewelers

Natural 1.14 Carat Oval Cut Blue Sapphire with Round & Baguette Cut Diamonds in a Swirled 18K White Gold Ring Setting

£8,716.00 GBP

Vintage 12 Carat Blue Sapphire and Diamond Art Deco Open Bracelet in Platinum – Assay Jewelers

Vintage 12 Carat Blue Sapphire and Diamond Art Deco Open Bracelet in Platinum – Assay Jewelers

Save 12%

Vintage 12 Carat Blue Sapphire and Diamond Art Deco Open Bracelet in Platinum

£35,821.00 GBP ~~£40,917.00 GBP~~

GRS Certified 41.17 CTTW Sri Lanka No Heat Blue Sapphire Bracelet with Diamond & Ruby in 18K White Gold – Assay Jewelers

GRS Certified 41.17 CTTW Sri Lanka No Heat Blue Sapphire Bracelet with Diamond & Ruby in 18K White Gold – Assay Jewelers

Certified

GRS Certified 41.17 CTTW Sri Lanka No Heat Blue Sapphire Bracelet with Diamond & Ruby in 18K White Gold

£71,532.00 GBP

6.34 Carat No Heat Oval Cut Blue Sapphire and Diamond Halo 18K Ring GRS Certified – Assay Jewelers

6.34 Carat No Heat Oval Cut Blue Sapphire and Diamond Halo 18K Ring GRS Certified – Assay Jewelers

Certified

6.34 Carat No Heat Oval Cut Blue Sapphire and Diamond Halo 18K Ring GRS Certified

£43,108.00 GBP

36.40 Carat Ceylon Star Cabochon Sapphire and Diamond GRS Certified 18K Ring – Assay Jewelers

36.40 Carat Ceylon Star Cabochon Sapphire and Diamond GRS Certified 18K Ring – Assay Jewelers

Certified

36.40 Carat Ceylon Star Cabochon Sapphire and Diamond GRS Certified 18K Ring

£46,798.00 GBP

AGL Certified 7.76 Carat No Heat Burma Oval Blue Sapphire Vintage Edwardian Ring in Platinum – Assay Jewelers

AGL Certified 7.76 Carat No Heat Burma Oval Blue Sapphire Vintage Edwardian Ring in Platinum – Assay Jewelers

Certified

AGL Certified 7.76 Carat No Heat Burma Oval Blue Sapphire Vintage Edwardian Ring in Platinum

£114,325.00 GBP

GRS Certified 6.35 Carat Oval Cut Royal Blue Sapphire with Diamonds in Platinum Ring – Assay Jewelers

GRS Certified 6.35 Carat Oval Cut Royal Blue Sapphire with Diamonds in Platinum Ring – Assay Jewelers

Certified

GRS Certified 6.35 Carat Oval Cut Royal Blue Sapphire with Diamonds in Platinum Ring

£26,846.00 GBP ~~£30,694.00 GBP~~

Pink Sapphire and Diamond Flower Motif Open Toi Et Moi Ring in 18K White Gold – Assay Jewelers

Pink Sapphire and Diamond Flower Motif Open Toi Et Moi Ring in 18K White Gold – Assay Jewelers

Pink Sapphire and Diamond Flower Motif Open Toi Et Moi Ring in 18K White Gold

£3,926.00 GBP

GRS Certified 18.16 Carat No Heat Mogok Burma Oval Cut Blue Sapphire and Diamond Ring – Assay Jewelers

GRS Certified 18.16 Carat No Heat Mogok Burma Oval Cut Blue Sapphire and Diamond Ring – Assay Jewelers

Certified

GRS Certified 18.16 Carat No Heat Mogok Burma Oval Cut Blue Sapphire and Diamond Ring

£232,896.00 GBP

Antique Art Deco Evening Bag In 14k Gold, Platinum, Diamonds and Sapphires With Compact Mirror – Assay Jewelers

Antique Art Deco Evening Bag In 14k Gold, Platinum, Diamonds and Sapphires With Compact Mirror – Assay Jewelers

Save 12%

Antique Art Deco Evening Bag In 14k Gold, Platinum, Diamonds and Sapphires With Compact Mirror

£13,019.00 GBP ~~£14,903.00 GBP~~

10.82 Carat No Heat Ceylon Blue Sapphire and Diamond Vintage Art Deco Platinum Ring | AGL & GIA Certified – Assay Jewelers

10.82 Carat No Heat Ceylon Blue Sapphire and Diamond Vintage Art Deco Platinum Ring | AGL & GIA Certified – Assay Jewelers

Certified

10.82 Carat No Heat Ceylon Blue Sapphire and Diamond Vintage Art Deco Platinum Ring | AGL & GIA Certified

£118,408.00 GBP

10.36 Carat Oval Cut No Heat Sri Lanka Blue Sapphire Drop Pendant Necklace – Assay Jewelers

10.36 Carat Oval Cut No Heat Sri Lanka Blue Sapphire Drop Pendant Necklace – Assay Jewelers

Save 12%

10.36 Carat Oval Cut No Heat Sri Lanka Blue Sapphire Drop Pendant Necklace

£37,917.00 GBP ~~£43,291.00 GBP~~

GRS Certified 7.25 Carat No Heat Oval Cut Blue Sapphire Ring With Pink Diamond Sides – Assay Jewelers

GRS Certified 7.25 Carat No Heat Oval Cut Blue Sapphire Ring With Pink Diamond Sides – Assay Jewelers

Certified

GRS Certified 7.25 Carat No Heat Oval Cut Blue Sapphire Ring With Pink Diamond Sides

£78,261.00 GBP ~~£89,402.00 GBP~~

AGL Certified 16.68 Carat Cabochon Cut Ceylon Blue Sapphire Ring with Diamond Halo and Filigree Set 18K White Gold – Assay Jewelers

AGL Certified 16.68 Carat Cabochon Cut Ceylon Blue Sapphire Ring with Diamond Halo and Filigree Set 18K White Gold – Assay Jewelers

Certified

AGL Certified 16.68 Carat Cabochon Cut Ceylon Blue Sapphire Ring with Diamond Halo and Filigree Set 18K White Gold

£47,191.00 GBP

14K Gold Textured Ribbon Motif Natural Pearl, Diamond and Sapphire Stud Earrings – Assay Jewelers

14K Gold Textured Ribbon Motif Natural Pearl, Diamond and Sapphire Stud Earrings – Assay Jewelers

Save 16%

14K Gold Textured Ribbon Motif Natural Pearl, Diamond and Sapphire Stud Earrings

£2,254.00 GBP ~~£2,694.00 GBP~~

5.50 Carat Vintage Art Deco Platinum Bracelet With Diamonds and Princess-Cut Blue Sapphires – Assay Jewelers

5.50 Carat Vintage Art Deco Platinum Bracelet With Diamonds and Princess-Cut Blue Sapphires – Assay Jewelers

Save 12%

5.50 Carat Vintage Art Deco Platinum Bracelet With Diamonds and Princess-Cut Blue Sapphires

£21,750.00 GBP ~~£24,813.00 GBP~~

16.30 Carat No Heat Lavender Blue Star-Sapphire in Platinum and 18K Ring – Assay Jewelers

16.30 Carat No Heat Lavender Blue Star-Sapphire in Platinum and 18K Ring – Assay Jewelers

16.30 Carat No Heat Lavender Blue Star-Sapphire in Platinum and 18K Ring

£23,164.00 GBP

Antique Old Mine 11.3 Carat No Heat Burma Blue Sapphire & Diamond Halo Ring in Platinum – Assay Jewelers

Antique Old Mine 11.3 Carat No Heat Burma Blue Sapphire & Diamond Halo Ring in Platinum – Assay Jewelers

Save 12%

Antique Old Mine 11.3 Carat No Heat Burma Blue Sapphire & Diamond Halo Ring in Platinum

£34,934.00 GBP ~~£39,904.00 GBP~~

Platinum Set Color Changing Natural Pink Padparadscha Sapphire Dangle Earrings – Assay Jewelers

Platinum Set Color Changing Natural Pink Padparadscha Sapphire Dangle Earrings – Assay Jewelers

Save 12%

Platinum Set Color Changing Natural Pink Padparadscha Sapphire Dangle Earrings

£38,082.00 GBP ~~£43,539.00 GBP~~

10.38 Carat Blue Sapphire and Diamond 18K White Gold Drop Earrings – Assay Jewelers

10.38 Carat Blue Sapphire and Diamond 18K White Gold Drop Earrings – Assay Jewelers

Sold Out

10.38 Carat Blue Sapphire and Diamond 18K White Gold Drop Earrings

19th Century Victorian-Era 15 Carat Burma Oval-Cut Sapphire and Diamond Ring – Assay Jewelers

19th Century Victorian-Era 15 Carat Burma Oval-Cut Sapphire and Diamond Ring – Assay Jewelers

19th Century Victorian-Era 15 Carat Burma Oval-Cut Sapphire and Diamond Ring

£187,826.00 GBP

GIA Certified 6 Carat Emerald Cut No Heat Burma Blue Sapphire & Diamond Ring – Assay Jewelers

GIA Certified 6 Carat Emerald Cut No Heat Burma Blue Sapphire & Diamond Ring – Assay Jewelers

Certified

GIA Certified 6 Carat Emerald Cut No Heat Burma Blue Sapphire & Diamond Ring

£74,138.00 GBP ~~£84,716.00 GBP~~

Vintage AGL Certified No Heat Blue Sapphire and Old Euro Cut Diamond Ring in Platinum – Assay Jewelers

Vintage AGL Certified No Heat Blue Sapphire and Old Euro Cut Diamond Ring in Platinum – Assay Jewelers

Certified

Vintage AGL Certified No Heat Blue Sapphire and Old Euro Cut Diamond Ring in Platinum

£13,019.00 GBP ~~£14,864.00 GBP~~

Vintage 4.57 Carat Blue Sapphire & Baguette Diamond Mens Matte Finish Gold Ring – Assay Jewelers

Vintage 4.57 Carat Blue Sapphire & Baguette Diamond Mens Matte Finish Gold Ring – Assay Jewelers

Save 12%

Vintage 4.57 Carat Blue Sapphire & Baguette Diamond Mens Matte Finish Gold Ring

£23,776.00 GBP ~~£27,184.00 GBP~~

9.10 Carat Ceylon No Heat Padparadscha Pinkish Orange Sapphire and Diamond Ring – Assay Jewelers

9.10 Carat Ceylon No Heat Padparadscha Pinkish Orange Sapphire and Diamond Ring – Assay Jewelers

9.10 Carat Ceylon No Heat Padparadscha Pinkish Orange Sapphire and Diamond Ring

Price Upon Request

GIA Certified Vintage No Heat 17 Carat Cushion Yellow Sapphire & Diamond Halo Floral Filigree Cocktail Ring – Assay Jewelers

GIA Certified Vintage No Heat 17 Carat Cushion Yellow Sapphire & Diamond Halo Floral Filigree Cocktail Ring – Assay Jewelers

Certified

GIA Certified Vintage No Heat 17 Carat Cushion Yellow Sapphire & Diamond Halo Floral Filigree Cocktail Ring

£38,161.00 GBP ~~£43,595.00 GBP~~

Vintage AGL Certified 6.80 Carat No Heat Blue Sapphire and Diamond Platinum Ring – Assay Jewelers

Vintage AGL Certified 6.80 Carat No Heat Blue Sapphire and Diamond Platinum Ring – Assay Jewelers

Certified

Vintage AGL Certified 6.80 Carat No Heat Blue Sapphire and Diamond Platinum Ring

£34,934.00 GBP ~~£39,912.00 GBP~~

21 Carat Art Deco Blue Sapphire and Diamond Bracelet in Platinum – Assay Jewelers

21 Carat Art Deco Blue Sapphire and Diamond Bracelet in Platinum – Assay Jewelers

Save 12%

21 Carat Art Deco Blue Sapphire and Diamond Bracelet in Platinum

£19,410.00 GBP ~~£22,159.00 GBP~~

7.15 Carat Oval Cut Blue Sapphire & Diamond Halo Ring in 14K Yellow Gold – Assay Jewelers

7.15 Carat Oval Cut Blue Sapphire & Diamond Halo Ring in 14K Yellow Gold – Assay Jewelers

Save 12%

7.15 Carat Oval Cut Blue Sapphire & Diamond Halo Ring in 14K Yellow Gold

£43,822.00 GBP ~~£50,068.00 GBP~~

9 Carat No Heat Ceylon Blue Sapphire and Old Euro Cut Diamond Ring in 14K – Assay Jewelers

9 Carat No Heat Ceylon Blue Sapphire and Old Euro Cut Diamond Ring in 14K – Assay Jewelers

Save 12%

9 Carat No Heat Ceylon Blue Sapphire and Old Euro Cut Diamond Ring in 14K

£31,455.00 GBP ~~£35,977.00 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