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Lab-Grown Collection

Bigger, Brighter,
Smarter Value​​

Get 40–60% more diamond for your budget. Same brilliance, same beauty — priced by data, guided by experts, optimized for you.

lab diamond on marble table
Lab-Grown Collection

Bigger, Brighter,
Smarter Value​​

Get 40–60% more diamond for your budget. Same brilliance, same beauty — priced by data, guided by experts, optimized for you.

lab diamond on marble table
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Gemologist Reviewed

Every stone personally evaluated

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Decision Tools

Compare, score, and analyze

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Expert Guidance

Talk to a gemologist anytime

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Concierge Sourcing

We find your perfect stone

Why Lab Diamonds

More Diamond, More Brilliance, Less Spent​​

The smart choice isn't a compromise — it's an upgrade.

01

2.1ct
AVG. SIZE AT $5k​ BUDGET
Larger Size for Your Budget
Lab diamonds cost 40–60% less per carat. A 2ct lab diamond often costs less than a 1ct natural — with identical visual impact.​​
02

100%
OPTICALLY IDENTICAL
Identical Visual Appearance

Same crystal structure, same refractive index, same fire. Even gemologists need specialized equipment to tell them apart.

03

3,847
DIAMONDS ANALYZED DAILY
Smarter Buying

Our value scoring system analyzes thousands of diamonds so you never overpay. Every recommendation is data-backed.

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Select Diamonds Only

FLASH SALE

Enjoy 45% off select lab-grown diamonds with code FLASH45.

Shop the event

Your Decision Toolkit

Tools That Do the Work for You​​

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Compare Diamonds

Place any two diamonds side by side. See how cut, color, clarity, and carat weight actually affect beauty and value.

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Price Intelligence

Our algorithm tracks pricing across the market so you know exactly where your diamond sits — above, below, or at fair value.

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Free Order Preview

No pressure, no surprises. Preview your qualifying order of $1,500+

Diamond Concierge

Your Personal
Diamond Optimizer

Our concierge team doesn't just help you shop — they help you win. Tell us your budget and priorities, and we'll surface the absolute best options.

01

Efficient

Average response time under 2 hours

02

Deal-Focused

We negotiate pricing on your behalf

03

Optimization Support

Trade-off analysis for every scenario

Ring Builder

Build the Perfect Ring Around
Your Diamond​​

You've optimized your diamond — now design the ring around it. Choose a setting, customize your design, or build it yourself in minutes.

Choose a Setting

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Quickly pair your diamond with a handcrafted setting designed to fit perfectly.

  • Classic and modern styles
  • Ready-to-set options
  • Designed for maximum impact
Shop Settings

Customize Your Ring

Customize Your Ring

Work with our team to refine your design and create something unique — without the complexity.

  • Simple customization process
  • Expert recommendations
  • Fast turnaround
Start a Custom Design

Design It Yourself

Design It Yourself

Use Ring Studio to build your ring in minutes and see it come together in real time.

  • Select your diamond
  • Choose your setting
  • Instantly visualize your ring
Start a Custom Design

Already have a diamond? Use it to design your ring.

Education

Lab vs Natural Diamonds:
The Full Picture​​

An honest, side-by-side comparison so you can decide with confidence.

PROPERTY
LAB-GROWN
NATURAL
Chemical Composition
Carbon (C)
Carbon (C)
Crystal Structure
Cubic
Cubic
Hardness (Mohs)
10
10
Refractive Index
2.42
2.42
Avg. Price (1ct, VS1, E)
$1,320
$5,840
Environmental Impact
Lower
Higher
Time to Create
2-4 weeks
1–3 billion years
Resale Value
Limited
Moderate

Collection

Browse Lab Grown Diamonds

Sorted by best value — the strongest combination of cut quality, beauty, and fair pricing.

Free Order Preview

See it in person, before you decide.​

Try on your engagement ring or examine your loose diamond with a Diamond Pro at a private office near you. Available on orders $1,500 and above.

01

Choose at checkout

Select "Free Preview with a Diamond Pro" as your delivery option and pick a nearby location.

02

Authorize, don't pay

A temporary hold is placed on your card — no charges, just like a hotel reservation.

03

Meet your Pro

Within 48 hours of shipping, a Diamond Pro contacts you to schedule your private preview.

04

Love it or leave it

Keep it and the payment processes. Walk away and the hold is released. No fees, no pressure.

Jewelers Mutual Insurance Logo
a ladies index finger is being shown against a window next to a white curtain. it is a a 4 prong elongated cushion diamond set in a yellow gold solitare engagement ring.
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Care for Every Piece

Protect your Ritani jewelry today so youcan wear it worry-free tomorrow.

Get a quote today
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A Smart Add-On for a Special Purchase

You’ve chosen the perfect piece—now choosethe protection plan that helps protect it.

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Talk to a Gemologist — Before You Decide​​

Not sure which diamond is right? Our gemologists will walk you through the tradeoffs, source stones to your spec, and help you decide with confidence — no commission, no pressure.

RITANI REWARDS

Every Purchase, Rewarded​​

Now you can always save! Earn free money simply by joining, engaging, and shopping—every purchase earns you cash back.

JOIN

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Join our community and start earning

EARN

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Get points every time you shop, share, and more

REDEEM

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Redeem points for exclusive rewards

Shop with more
clarity.

Everything you need to choose well, all in one place.

Common Questions

Frequently Asked Questions

  • Are lab-grown diamonds real diamonds?
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    Yes, lab-grown diamonds, often called lab-created diamonds, synthetic diamonds, or man-made diamonds have the same chemical composition, crystal structure, and physical properties as natural diamonds. They are graded using the same independent laboratories using the same standards. The only difference is their origin.

  • How do lab-grown diamonds compare to natural diamonds in terms of quality?
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    Quality is determined by the 4Cs: cut, color, clarity, and carat, regardless of whether a diamond is lab-grown or mined. A well-cut lab-grown diamond will outshine a poorly cut natural diamond every time. At Ritani, our gemologists review every stone.

  • Are lab-grown diamonds less expensive than natural diamonds?
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    Significantly. Lab-grown diamonds are typically 70% or more below the price of comparable natural stones. That price gap makes it possible to choose a larger, higher-quality diamonds than your budget would allow with a mined stone, without compromising on certificate or brilliance.

  • Do lab grown diamonds hold their value?
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    Lab-grown diamonds have lower resale value than natural diamonds, largely because they can be produced rather than mined. If long-term resale value is a priority, a natural diamond is the stronger investment. If you're focused on getting the most beautiful stone for your budget today, a lab-grown diamond is hard to beat.

  • Can lab-grown diamonds be detected by diamond testers?
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    Most standard diamond testers cannot distinguish between synthetic and natural diamonds. However, specialized equipment, such as spectroscopy machines, can identify the origin of a diamond.