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

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

Every stone personally evaluated
Compare, score, and analyze
Talk to a gemologist anytime
We find your perfect stone
Diamond Shapes
The shape defines the look. The details define the value.
Created with precision.
Why Lab Diamonds
The smart choice isn't a compromise — it's an upgrade.
Same crystal structure, same refractive index, same fire. Even gemologists need specialized equipment to tell them apart.
Our value scoring system analyzes thousands of diamonds so you never overpay. Every recommendation is data-backed.

Select Diamonds Only
Enjoy 45% off select lab-grown diamonds with code FLASH45.
Your Decision Toolkit
Place any two diamonds side by side. See how cut, color, clarity, and carat weight actually affect beauty and value.
Our algorithm tracks pricing across the market so you know exactly where your diamond sits — above, below, or at fair value.
No pressure, no surprises. Preview your qualifying order of $1,500+
Diamond Concierge
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.
Average response time under 2 hours
We negotiate pricing on your behalf
Trade-off analysis for every scenario
Ring Builder
You've optimized your diamond — now design the ring around it. Choose a setting, customize your design, or build it yourself in minutes.
Quickly pair your diamond with a handcrafted setting designed to fit perfectly.
Work with our team to refine your design and create something unique — without the complexity.
Use Ring Studio to build your ring in minutes and see it come together in real time.
Education
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
Sorted by best value — the strongest combination of cut quality, beauty, and fair pricing.
Free Order Preview
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.
Select "Free Preview with a Diamond Pro" as your delivery option and pick a nearby location.
A temporary hold is placed on your card — no charges, just like a hotel reservation.
Within 48 hours of shipping, a Diamond Pro contacts you to schedule your private preview.
Keep it and the payment processes. Walk away and the hold is released. No fees, no pressure.

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

You’ve chosen the perfect piece—now choosethe protection plan that helps protect it.
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.
Shop
Discover diamonds valued for their rarity, character, and lasting sustainability.
Learn
The more you understand a natural diamond, the more meaningful the decision becomes.
GUIDE
Understand how lab grown diamonds are formed and what sets them apart
COMPARISON
Compare origin, value, and long-term considerations
EDUCATION
Cut, clarity, color, and carat — what actually matters
TUTORIAL
How to read GIA reports and evaluate quality
RITANI REWARDS
Now you can always save! Earn free money simply by joining, engaging, and shopping—every purchase earns you cash back.
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Get points every time you shop, share, and more
Redeem points for exclusive rewards
Everything you need to choose well, all in one place.
Common Questions
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.
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.
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.
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.
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.