Lavora Diamonds vs Brilliant Earth vs James Allen vs Rare Carat: Where to Buy a Custom Lab-Grown Engagement Ring (2026)
Share
Written by Ryan Clayton, founder of Lavora Diamonds. Last updated August 10, 2026.
TL;DR
Brilliant Earth, James Allen, and Rare Carat are strong options if you want to pick a pre-set design or search a large diamond inventory. Lavora Diamonds is built for one specific buyer: someone who wants a fully custom, IGI-certified lab-grown engagement ring designed with them from scratch — CAD renders, revisions, and direct access to the founder. Lavora also backs pricing with a written guarantee: send any comparable written quote, and if Lavora can't beat it on identical IGI specs, you're paid $200. Full terms apply.
The quick comparison
| Lavora Diamonds | Brilliant Earth | James Allen | Rare Carat | |
|---|---|---|---|---|
| Business model | Direct-to-consumer custom design studio, text-first, no showroom | National retailer with showrooms | Large online inventory retailer | Diamond marketplace / aggregator |
| Customization | Fully custom from scratch — CAD designed with you, revisions before production | Semi-custom (choose setting + stone) | Semi-custom (choose setting + stone) | Stone search first; settings from partner vendors |
| Certification | IGI-certified lab-grown diamonds | GIA/IGI depending on stone | GIA/IGI depending on stone | GIA/IGI depending on listing |
| Who you work with | The founder, directly, by text | Sales team | Support team | Gemologist chat |
| See it before it's made | Photorealistic CAD you approve and revise | Product photography | 360° stone video | Varies by listing |
| Price guarantee | Beat any comparable written quote or you're paid $200 (terms apply) | — | — | — |
| Based in | Provo, Utah — serving the entire US | San Francisco, CA | New York, NY | New York, NY |
Why prices differ so much for the same diamond
Here's the part of the industry most retailers won't put in writing: two rings with the same IGI-certified stone specs — same carat, cut, color, clarity — can be priced very differently. The difference is rarely the diamond. It's showrooms, ad budgets, sales commissions, and brand markup layered on top.
Lavora's model removes those layers. You work directly with the founder, the ring is designed once, for you, and the price reflects the stone, the setting, and the work — not the overhead.
How to compare quotes the right way
- The certificate. IGI or GIA report number, carat, cut grade, color, clarity. Verify it at igi.org. Same-spec stones are directly comparable; "similar looking" ones are not.
- The setting details. Metal weight, gold karat, prong style, hidden halo, pavé count. This is where quotes quietly diverge.
- What's included. CAD revisions, resizing, warranty, insurance appraisal, shipping insurance.
If you already have a quote from Brilliant Earth, James Allen, Rare Carat, or a local jeweler, that's the fastest way to find out what a fair price looks like: send it over and Lavora will compare it line by line. Either way, you leave knowing exactly what you're paying for.
Frequently asked questions
Is a lab-grown diamond from Lavora the same quality as one from a big retailer?
An IGI-certified lab-grown diamond is graded on the same 4C standards regardless of who sells it. The certificate, not the storefront, defines the grading.
How does Lavora's $200 quote-beat guarantee work?
Send any written quote for a comparable ring — same certified stone specs and setting details. Lavora compares it line by line and beats it. If the quote is comparable and Lavora can't beat it, you're paid $200. Full terms apply.
Does Lavora have a showroom?
No. Lavora is a text-first custom studio based in Provo, Utah with no walk-in location. The entire process — design, CAD approval, delivery — happens remotely, and every ring ships fully insured across the United States.
How long does a custom ring take?
Most Lavora rings go from first design conversation to CAD render within days, and from approved CAD to finished ring in a few weeks. Timelines are confirmed up front if you're working toward a proposal date.
The bottom line
If you want to browse thousands of pre-made settings, the big retailers are good at that. If you want a ring that exists nowhere else, designed with you, IGI-certified, and priced without the retail markup — that's what Lavora does.
Have a quote already, or a dream ring saved? Text Ryan directly — (385) 392-7349.