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Exquisite Loose Diamonds for Sale

Discover Hand-Selected Diamonds - Ready to Dazzle!

Welcome to our online diamond boutique, where exceptional quality meets unmatched brilliance.

Our collection of loose diamonds is meticulously curated for those who seek only the finest gems.

30 Day Free Return

Sustainable

Free, Insured Shipping

Ethically Sourced

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View 282 items
 

1 Carat Emerald Cut Diamond - G VS1 - 1.03ct - 224449

$5,768.00
 

1 Carat Princess Cut Diamond - G I1 - 1.25ct - 225354

$3,375.00
1 Carat Radiant Cut Diamond - I SI2 - 1.25ct - 212773 - Diamonds By Rothschild
 

1 Carat Radiant Cut Diamond - I SI2 - 1.25ct - 212773

$4,350.00
3/4 Carat Round Cut Diamond - K SI1 - 0.71ct - 217366 - Diamonds By Rothschild
 

3/4 Carat Round Cut Diamond - K SI1 - 0.71ct - 217366

$1,689.80
1/2 Carat Round Cut Diamond - L I1 - 0.69ct - 219269 - Diamonds By Rothschild
 

1/2 Carat Round Cut Diamond - L I1 - 0.69ct - 219269

$690.00
1 Carat Heart Shape Cut Diamond - H SI2 - 1.38ct - 211185 - Diamonds By Rothschild
 

1 Carat Heart Shape Cut Diamond - H SI2 - 1.38ct - 211185

$5,740.80
1 Carat Marquise Cut Diamond - L SI1 - 0.90ct - 210834 - Diamonds By Rothschild
 

1 Carat Marquise Cut Diamond - L SI1 - 0.90ct - 210834

$1,316.70
3/4 Carat Round Cut Diamond - H VS1 - 0.74ct - 222136 - Diamonds By Rothschild
 

3/4 Carat Round Cut Diamond - H VS1 - 0.74ct - 222136

$2,220.00
3/4 Carat Princess Cut Diamond - D SI2 - 0.80ct - 222775 - Diamonds By Rothschild
 

3/4 Carat Princess Cut Diamond - D SI2 - 0.80ct - 222775

$2,000.00
1 Carat Princess Cut Diamond - I I1 - 1.02ct - 222890 - Diamonds By Rothschild
 

1 Carat Princess Cut Diamond - I I1 - 1.02ct - 222890

$2,346.00
1/2 Carat Marquise Cut Diamond - D VS2 - 0.65ct - 222888 - Diamonds By Rothschild
 

1/2 Carat Marquise Cut Diamond - D VS2 - 0.65ct - 222888

$1,560.00
1.5 Carat Emerald Cut Diamond - I VS1 - 1.50ct - 221945 - Diamonds By Rothschild
 

1.5 Carat Emerald Cut Diamond - I VS1 - 1.50ct - 221945

$10,200.00
1 Carat Princess Cut Diamond - K I1 - 1.07ct - 222774 - Diamonds By Rothschild
 

1 Carat Princess Cut Diamond - K I1 - 1.07ct - 222774

$1,926.00
3/4 Carat Round Cut Diamond - G I1 - 0.81ct - 217380 - Diamonds By Rothschild
 

3/4 Carat Round Cut Diamond - G I1 - 0.81ct - 217380

$1,620.00
3/4 Carat Oval Cut Diamond - G SI2 - 0.75ct - 217365 - Diamonds By Rothschild
 

3/4 Carat Oval Cut Diamond - G SI2 - 0.75ct - 217365

$1,731.95
3/4 Carat Oval Cut Diamond - G I2 - 0.81ct - 217012 - Diamonds By Rothschild
 

3/4 Carat Oval Cut Diamond - G I2 - 0.81ct - 217012

$1,134.00
3/4 Carat Triangle Cut Diamond - H I2 - 0.70ct - 222634 - Diamonds By Rothschild
 

3/4 Carat Triangle Cut Diamond - H I2 - 0.70ct - 222634

$910.00
3/4 Carat Round Cut Diamond - K I1 - 0.82ct - 222588 - Diamonds By Rothschild
 

3/4 Carat Round Cut Diamond - K I1 - 0.82ct - 222588

$1,653.12

Ethically-Sourced

We are committed to ethical and sustainable practices.

Our Ethical Process

Jewelry Makers

Your imagination and our craftmanship captures the magic of each diamond.

Let's Co-Create

Recut for brilliance, defined by light

Refined Diamonds

Refined diamonds are the most sustainable diamond option. They are also made from the most crisp material.

We believe diamonds deserve more than one life.

Hand-selected from fine jewelry, these natural diamonds are carefully removed from their original settings and expertly recut to unlock their fullest potential.

Through precision craftsmanship, our master cutters reveal each stone’s sparkle, and light performance—transforming pre-loved gems into masterpieces of modern brilliance.

Use this text to share information about your brand with your customers. Describe a product, share announcements, or welcome customers to your store.

As a result, you can be assured that our diamonds will always be:

Hand-Selected

Every refined diamond in our collection is meticulously hand-selected, ensuring only the finest make the cut.

This careful curation guarantees unmatched quality and brilliance for your jewelry.

100% Natural

We proudly offer only natural diamonds, sourced responsibly and crafted to perfection.

Each gem reflects timeless beauty and authenticity you can trust.

Light Optimized

Our diamonds are expertly recut to maximize their brilliance, showcasing unparalleled sparkle.

With optimal light performance, your jewelry will captivate from every angle.

By refining each gem’s natural brilliance, Refined Diamonds honor both the artistry of man and the mysteries of the earth.

A perfect blend of timeless elegance and modern craftsmanship, these diamonds offer unparalleled radiance to last for generations.

More than just gemstones, they are symbols of renewal and the enduring brilliance of nature.

Any Questions?

Browse our Refined Loose Diamonds

Browse through our selection of exceptional ethically sourced, sustainable diamonds.

You can be assured of exceptional quality loose natural diamonds.

  • Radiant Cut Diamonds

  • 3 Carat Diamond

  • Asscher Cut Diamonds

  • 2 Carat Diamonds

  • Old European Cut

Radiant Cut Diamond - Diamonds By Rothschild
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1 Carat Radiant Cut Diamond - I SI2 - 1.25ct - 212773 - Diamonds By Rothschild
 

1 Carat Radiant Cut Diamond - I SI2 - 1.25ct - 212773

$4,350.00
2 Carat Radiant Cut Diamond - G SI2 - 2.17ct - 2082 - Diamonds By Rothschild
 

2 Carat Radiant Cut Diamond - G SI2 - 2.17ct - 2082

$15,676.08
3/4 Carat Radiant Cut Diamond - K VS2 - 0.85ct - 215521 - Diamonds By Rothschild
 

3/4 Carat Radiant Cut Diamond - K VS2 - 0.85ct - 215521

$1,477.98
1 Carat Radiant Cut Diamond - G VVS2 - 1.00ct - 183547 - Diamonds By Rothschild
 

1 Carat Radiant Cut Diamond - G VVS2 - 1.00ct - 183547

$4,872.00
1 Carat Radiant Cut Diamond - F SI1 - 1.00ct - 191236 - Diamonds By Rothschild
 

1 Carat Radiant Cut Diamond - F SI1 - 1.00ct - 191236

$3,732.40
1 Carat Radiant Cut Diamond - J VVS1 - 1.11ct - 217358 - Diamonds By Rothschild
 

1 Carat Radiant Cut Diamond - J VVS1 - 1.11ct - 217358

$4,226.88
3 Carat Diamond and Up - Diamonds By Rothschild
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>3 Carat Oval Cut Diamond - J IF - 3.31ct - 207927

$43,430.00
>3 Carat Emerald Cut Diamond - I SI1 - 3.02ct - 206521 - Diamonds By Rothschild
 

>3 Carat Emerald Cut Diamond - I SI1 - 3.02ct - 206521

$34,500.48
>3 Carat Pear Shape Cut Diamond - K VS1 - 2.95ct - 180989 - Diamonds By Rothschild
 

>3 Carat Pear Shape Cut Diamond - K VS1 - 2.95ct - 180989

$20,850.60
>3 Carat Round Cut Diamond - F VS1 - 6.37ct - 168197 - Diamonds By Rothschild
 

>3 Carat Round Cut Diamond - F VS1 - 6.37ct - 168197

$268,304.40
Asscher Cut Diamond - Diamonds By Rothschild
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1/2 Carat Asscher Cut Diamond - H VS2 - 0.69ct - 225676

$1,311.00
1 Carat Asscher Cut Diamond - H SI1 - 1.04ct - 215618 - Diamonds By Rothschild
 

1 Carat Asscher Cut Diamond - H SI1 - 1.04ct - 215618

$3,340.06
3/4 Carat Asscher Cut Diamond - D VS2 - 0.82ct - 214286 - Diamonds By Rothschild
 

3/4 Carat Asscher Cut Diamond - D VS2 - 0.82ct - 214286

$3,174.22
1 Carat Asscher Cut Diamond - G VVS2 - 1.02ct - 216813 - Diamonds By Rothschild
 

1 Carat Asscher Cut Diamond - G VVS2 - 1.02ct - 216813

$4,883.76
3/4 Carat Asscher Cut Diamond - G VS1 - 0.77ct - 173027 - Diamonds By Rothschild
 

3/4 Carat Asscher Cut Diamond - G VS1 - 0.77ct - 173027

$1,828.29
2 Carat Diamond - Diamonds By Rothschild
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2 Carat Round Cut Diamond - Q - R SI2 - 2.08ct - 157848 - Diamonds By Rothschild
 

2 Carat Round Cut Diamond - Q-R SI2 - 2.08ct - 157848

$8,775.00
2 Carat Round Cut Diamond - I IF - 1.82ct - 76236 - Diamonds By Rothschild
 

2 Carat Round Cut Diamond - I IF - 1.82ct - 76236

$16,380.00
2 Carat Round Cut Diamond - K VS1 - 1.86ct - 206515 - Diamonds By Rothschild
 

2 Carat Round Cut Diamond - K VS1 - 1.86ct - 206515

$8,486.25
2 Carat Round Cut Diamond - E SI1 - 2.25ct - 154651 - Diamonds By Rothschild
 

2 Carat Round Cut Diamond - E SI1 - 2.25ct - 154651

$25,660.80
2 Carat Radiant Cut Diamond - G SI2 - 2.17ct - 2082 - Diamonds By Rothschild
 

2 Carat Radiant Cut Diamond - G SI2 - 2.17ct - 2082

$15,676.08
2 Carat Round Cut Diamond - G SI1 - 2.01ct - 216427 - Diamonds By Rothschild
 

2 Carat Round Cut Diamond - G SI1 - 2.01ct - 216427

$22,962.24
Old European Diamond Cut - Diamonds By Rothschild
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1 Carat Old European Cut Diamond - H SI1 - 1.03ct - 214196 - Diamonds By Rothschild
 

1 Carat Old European Cut Diamond - H SI1 - 1.03ct - 214196

$4,744.18
1 Carat Old European Cut Diamond - H SI2 - 1.03ct - 218100 - Diamonds By Rothschild
 

1 Carat Old European Cut Diamond - H SI2 - 1.03ct - 218100

$4,152.96
1 Carat Old European Cut Diamond - H VS2 - 1.00ct - 214053 - Diamonds By Rothschild
 

1 Carat Old European Cut Diamond - H VS2 - 1.00ct - 214053

$5,967.00
1 Carat Old European Cut Diamond - I SI1 - 1.28ct - 218134 - Diamonds By Rothschild
 

1 Carat Old European Cut Diamond - I SI1 - 1.28ct - 218134

$5,940.48
1 Carat Old European Cut Diamond - J SI1 - 0.96ct - 218099 - Diamonds By Rothschild
 

1 Carat Old European Cut Diamond - J SI1 - 0.96ct - 218099

$3,311.62
1 Carat Old European Cut Diamond - J VS2 - 1.39ct - 216442 - Diamonds By Rothschild
 

1 Carat Old European Cut Diamond - J VS2 - 1.39ct - 216442

$5,854.68

More loose diamonds for sale...

Browse our large selection of ethically sourced, natural diamonds

half carat diamond
1/2 Carat Diamond
3/4 carat diamond
3/4 Carat Diamond
1 carat diamond
1 Carat Diamond
1.5 carat diamond
1.5 Carat Diamond
2 carat diamond
2 Carat Diamond
2.5 Carat Diamond - Diamonds By Rothschild
2.5 Carat Diamond
Circular Brilliant Cut Diamond
Circular Brilliant Cut
Cushion Cut Diamond
Cushion Cut Diamond
Emerald Cut Diamond
Emerald Cut Diamond
Old Mine Cut Diamond
Old Mine Cut Diamond
Oval Cut Diamond
Oval Cut Diamond
Pear Shape Diamond
Pear Shape Diamond

  • Princess Cut Diamond

  • Round Cut Diamonds

Princess Cut Diamond
View products
 

1 Carat Princess Cut Diamond - G I1 - 1.25ct - 225354

$3,375.00
 

1 Carat Princess Cut Diamond - I SI2 - 1.03ct - 224448

$2,987.00
1 Carat Princess Cut Diamond - I I1 - 1.02ct - 222890 - Diamonds By Rothschild
 

1 Carat Princess Cut Diamond - I I1 - 1.02ct - 222890

$2,346.00
3/4 Carat Princess Cut Diamond - D SI2 - 0.80ct - 222775 - Diamonds By Rothschild
 

3/4 Carat Princess Cut Diamond - D SI2 - 0.80ct - 222775

$2,000.00
1 Carat Princess Cut Diamond - K I1 - 1.07ct - 222774 - Diamonds By Rothschild
 

1 Carat Princess Cut Diamond - K I1 - 1.07ct - 222774

$1,926.00
1 Carat Princess Cut Diamond - K VS1 - 1.26ct - 214572 - Diamonds By Rothschild
 

1 Carat Princess Cut Diamond - K VS1 - 1.26ct - 214572

$4,092.48
Round Cut Diamonds
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3/4 Carat Round Cut Diamond - H I1 - 0.89ct - 225677

$1,691.00
 

1 Carat Round Cut Diamond - H VVS2 - 1.28ct - 219282

$7,815.00
 

1 Carat Round Cut Diamond - I VVS1 - 1.02ct - 218985

$5,105.00
 

1.5 Carat Round Cut Diamond - F VS2 - 1.61ct - 223532

$16,320.00
 

3/4 Carat Round Cut Diamond - I VS1 - 0.70ct - 225608

$1,820.00
 

1 Carat Round Cut Diamond - I SI2 - 1.05ct - 225356

$3,780.00

Online Diamond Retailer

Buy Loose Diamonds

Just because we are online doesn't mean our service isn't personal.

Contact one of our diamond experts for exceptional diamond advice.

You can also schedule an obligation free consultation, either virtually or at our Pittsburgh jewelry store.

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