Thomas Cooper Jewelry: Where every piece makes you smile!

Introducing our Sterling Dog Collection! Dog jewelry for humans!

Unleash a world of elegance and charm with our Sterling Dog Collection, where each piece embodies the timeless beauty and loyalty of one’s best friend.

Crafted with meticulous attention and lifelike detail, our sterling silver designs blend sophistication with whimsy, making them the perfect addition to any dog lovers’ jewelry collection!

Shop now and discover the perfect pieces to celebrate your love for dogs in style.

craftsman at jewelry bench

Purchasing fine jewelry shouldn’t cost you a fortune!

Thomas Cooper Jewelry bypasses wholesalers and retail stores, saving you money, and delivering high quality fine jewelry straight from our workshop to your doorstep. Shop Online

Proudly Made in the U.S.A.

The Diamond District in New York City is renowned for producing the highest quality jewelry in the world. Generations of skilled jewelers have come to earn a living and craft exquisite fine jewelry with pride. Shop Made in America

About Thomas Cooper

Thomas Cooper creates timeless fine jewelry handcrafted in platinum and high karat gold. His jewelry collections showcase ethically sourced diamonds, pearls, gemstones, and birthstones... Read More

Reviews

Responsive seller, easy to work with. Ruby is as listed and looks even better than a photo can show. Delivery was swift and received before Christmas. Highly recommended shop. Thank you.
5 out of 5 stars

Richard

My wife LOVED these earrings and hasn’t taken them out since she received them weeks ago. I was also very impressed with the way they were shipped and the great care that went into it. It felt like I was receiving a package from a friend; not a stranger I bought something from on the internet. Thanks so much. These earrings are cherished and they really are well made.

5 out of 5 stars

elliscollado

Great, great, great! Extremely responsive seller sent exactly what I hoped for very quickly. Is there a 6 star review?
5 out of 5 stars

bradfordkessler1957

Sweet Spinel Earrings, beautiful!!! Awesome seller, A+++++

304strawberryman

Quality craftsmanship, exact description, fast ship, AAA+professionalism/rapport

lokoher

Emerald stud earrings are beautiful! Awesome seller, A+++++. My 3rd purchase!

304strawberryman

Beautiful stones and as described! Thanks! :)

kentandjosh

Love this Red Spinel stud! More beautiful in person. Thank you Thomas!
5 out of 5 stars

Steve

Beautiful earrings! Very happy with this purchase. Awesome seller, A+++++

304strawberryman
birthstone image collection

What's Your Birthstone?

Birthstones captivate gemstone and jewelry enthusiasts worldwide, providing an educational and engaging introduction into the world of gemstones and fine jewelry!

Click to find your birthstone and learn why it's so precious!

  • Aquamarine & Diamond Ring

  • Aquamarine and diamond ring handcrafted in white gold

  • Sapphire & Diamonds

  • Ceylon Sapphire and Diamond ring handcrafted in 18k white gold

  • Spinel & Diamond Rings

  • Spinel and diamond rings handcrafted in 18k white gold

  • Ruby & Diamonds

  • Burma ruby and diamond halo ring handcrafted in 18K white gold

  • Sapphire & Diamonds

  • Ceylon Sapphire and Diamond ring handcrafted in 18K white gold

  • Diamonds

  • Classic diamond ring handcrafted in platinum

Aquamarine & Diamond Ring

Aquamarine and diamond ring handcrafted in white gold

Sapphire & Diamonds

Ceylon Sapphire and Diamond ring handcrafted in 18k white gold

Spinel & Diamond Rings

Spinel and diamond rings handcrafted in 18k white gold

Ruby & Diamonds

Burma ruby and diamond halo ring handcrafted in 18K white gold

Sapphire & Diamonds

Ceylon Sapphire and Diamond ring handcrafted in 18K white gold

Diamonds

Classic diamond ring handcrafted in platinum
GIA anatomy of a diamond

Learn the Diamond 4Cs

1. Color: The amount of a diamond's color, on a scale of D-to-Z

2. Clarity: The relative absence of inclusions and blemishes

3. Cut: Can affect diamonds’ brilliance, fire, scintillation

4. Carat Weight: Diamonds are sold by weight

Learn more about the Diamond 4Cs

Gemstones

  • $365.00
    $365.00
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  • $173.00
    $173.00
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  • $178.00
    $178.00
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  • $280.00
    $280.00
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Ethically Sourced Diamond & Gemstone Fine Jewelry

Handcrafted in New York City


Our diamonds, gemstones, and precious metals are sourced
in a responsible and sustainable manner. Gemstones are sourced directly from small independent mines and gemstone dealers in gem regions around the world. Wherever possible, we utilize raw materials and alloys that have been recycled.

“Buying diamonds and gemstones directly from the source guarantees my clientele peace of mind, quality, and value” —Thomas Cooper

Sourcing Statement

Reviews

Beautiful! Great communication and fantastic packaging and fast shipping. I Highly recommend Thomas Cooper Jewelry.

Ayanita

Thomas Cooper does it once again, beautiful stones!

tb92

Stunning Quality!! Gorgeous Color!! Amazing Cut! Great Store, Thank You!!

Harry K

Wonderful colored stone and excellent seller!

tstrike31

Shipped quickly and the stones are just as pictured. Very very happy!

Squibblywibbly

professional packaging, well described, and exactly as purchased.

bcherps

Beautiful gems. I recommend this seller to everyone looking for great business and honest service.

Zap5

Beautiful looking stones. Quality looks first class. Really happy to have got them. Thanks.

stringer57mcfc

Gorgeous stone! Extremely happy! Would definitely recommend this seller!

dmasters1992