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Common inquiry types

The most useful first conversation is specific. Send the desired diamond size, color target, timeline, whether the request is for a finished gem or rough material, and whether you need a one-off project or a production route.

Custom lab grown diamond projects
Rough CVD diamond for cutting
Single crystal growth on seed plates
White, yellow, brown, or blue growth concepts
Founder, engagement, or commemorative projects
Gem production reactor discussions
Training and recipe transfer discussions
Technical single crystal plates

Growth-driven, not just resale

The important distinction is that Carat's gem work is tied to actual plasma CVD diamond growth capability. That matters when the project requires custom growth, provenance, unusual size or color goals, or a production system discussion rather than a retail inventory search.

For finished jewelry purchasing, use the gem inquiry path. For technical single crystal material, use the technical diamond products path. For production equipment, start with the deposition systems page.

What to send

  • Target finished stone size or rough size
  • Desired color range and clarity objective
  • Timeline and budget range
  • Need for rough only, cut stone, or finished jewelry
  • Whether the request is one-off, pilot, or production

Send gem specifications

Gem videos and pink diamond examples

Rotating gem videos and pink diamond examples show prior gem growth, color, and cutting work.

Rotating single crystal diamond gem example.

Pear-cut CVD diamond gem example.

1.5 to 2.5 ct pink CVD diamond gems

1.5-2.5ct gems.

White brilliant-cut CVD diamond example.

Gems grown at Carat Systems.

Private personal diamond commissions

Humanite™: a diamond that carries origin, not just meaning

Carat Systems is developing Humanite™, a new form of personal CVD diamond. The concept is simple: a small amount of meaningful carbon-bearing material from a person, object, or moment can be prepared and incorporated during diamond growth.

The result is not only symbolic. It is physical. The diamond contains material connected to the story behind it, while still being grown through a controlled CVD diamond process.

Humanite™ is separate from memorial ash diamonds and HPHT conversion concepts. The focus is positive life events, commitments, achievements, and meaningful objects translated into individually grown CVD diamond.

A diamond. Your story. Forever.

Examples of source material

  • A letter or written note
  • A lock of hair
  • Fabric from a defining moment
  • Other material reviewed privately for suitability

Process

  • Private consultation
  • Material selection and preparation
  • Controlled CVD diamond growth
  • Cutting and setting by top-tier artisans

Humanite™ is offered by referral only, with a limited number of commissions each year.

Request private inquiry

For gem customers

If your goal is a custom grown stone, the useful question is not only carat weight. The growth plan must account for seed size, target shape, color objective, cut plan, yield loss, and post-growth processing. A short technical review avoids unrealistic assumptions.

Go to Purchase Gems

For technical buyers

If your interest is single crystal diamond as a material rather than a jewelry product, Carat can review plate dimensions, thickness, polishing, optical or electronic requirements, and whether CVD diamond growth or material supply is the best route.

View technical diamond products

Have a custom single crystal diamond requirement?