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Natural Diamonds · Pittsburgh

Natural Diamonds in Pittsburgh

Two paths to a natural diamond at Diamonds by Rothschild: our exclusive American Diamonds - Refined in stock at our showroom, or newly mined diamonds ordered to your specifications.

Both are GIA-graded and 100% natural.

Two Inventories

Two Ways to Find your Diamond

Browse our exclusive Refined American Diamonds in stock, or order a newly mined diamond to your exact specifications.

American Diamonds - Refined

Pre-loved natural diamonds sourced within the United States, returned to the market through a vertically integrated supply chain, and expertly re-cut for modern light performance.

  • Sustainable, with no new extraction
  • US-sourced, traceable from the moment they re-entered the market
  • GIA-regraded after expert re-cutting
  • In stock at our Pittsburgh showroom

Newly Mined Diamonds

Natural diamonds from current mining operations are available in various combinations of cut, color, clarity, and carat weight.

Browse online with prices, then order to your exact specifications and view in person before you commit.

  • Each stone is GIA-graded
  • Priced individually online
  • Typically available to view within a few business days
Close up of a diamond on a loupe

Exclusive Rothschild

The Diamond with a Second Life

American Diamonds - Refined are our answer to a real question: the world already contains an abundance of beautiful natural diamonds. Why insist on new mining when stones with their own histories can be returned to the market, expertly re-cut to today's standards, and worn for the next century?

Each American Diamond - Refined is sourced from within the United States through a vertically integrated supply chain, re-cut to optimize light performance and proportions, and GIA-regraded to reflect its current quality. Sustainable, traceable, and beautifully made.

How to Choose

The Four C's of Diamonds

Every diamond is graded against four characteristics: cut, color, clarity, and carat weight.

Together, they determine how a diamond performs visually and what it costs.

Cut

How well a diamond's facets reflect light. The biggest single influence on sparkle.

Color

Graded D (colorless) through Z (yellow tint). Most engagement diamonds fall in the D–H range.

Clarity

How free a diamond is of internal inclusions and surface blemishes, viewed at 10x magnification.

Carat

The weight of a diamond. One carat equals 0.2 grams. Affects size, but cut affects perceived size more.

In Pittsburgh

See our Diamonds in Person, in Downtown Pittsburgh

Our American Diamonds - Refined are kept in stock at our showroom on the second floor of the historic Clark Building at 717 Liberty Avenue.

Stones are best viewed in person under proper showroom lighting, where their cut and light performance can be evaluated honestly.

While our showroom is in Pittsburgh and we serve the surrounding region, virtual consultations are available for clients anywhere in the United States.


Before You Choose a Diamond

What is the difference between American Diamonds - Refined and newly mined diamonds?

American Diamonds - Refined are pre-loved natural diamonds sourced within the United States, returned to the market through a vertically integrated supply chain, expertly re-cut for modern light performance, and GIA-regraded. They are sustainable, traceable, and require no new extraction.

Newly mined diamonds are natural diamonds extracted from current mining operations and brought to market through conventional supply chains.

Both categories are 100% natural and GIA-graded.

Diamonds by Rothschild stocks American Diamonds - Refined on premises and orders newly mined diamonds based on client specifications.

Are all the diamonds at Diamonds by Rothschild GIA-graded?

Yes. Every diamond sold by Diamonds by Rothschild comes with a GIA grading report, the industry's most respected diamond grading standard.

American Diamonds - Refined are regraded by the GIA after re-cutting to reflect their improved proportions and quality.

Newly mined diamonds arrive with their original GIA grading reports.

Can I see natural diamonds in person in Pittsburgh?

Yes. American Diamonds - Refined are kept in stock at our Pittsburgh showroom on the second floor of the Clark Building at 717 Liberty Avenue.

Stones can be viewed under proper showroom lighting at any visit.

For specific carat weights, cuts, or qualities, calling ahead allows us to prepare a curated selection.

Newly mined diamonds are ordered based on client specifications and can typically be viewed within a few business days.

Can I have a custom piece designed around a diamond I purchase from you?

Yes. Any diamond purchased from Diamonds by Rothschild can be set in a custom-designed piece, paired with one of our settings, or set in a piece you select from our showroom.

The custom design process includes a free consultation, 3D CAD rendering, and hand-finished crafting, with most projects completed in 3 to 4 weeks

Begin

Find Your Diamond. It Starts With a Conversation.

Schedule a free consultation in our Pittsburgh showroom or by video.

We'll walk you through the four C's, show you what's in stock, and source what isn't.