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Best Places to Buy Lab-Grown Diamond Jewelry Online in the USA
The best places to buy lab-grown diamond jewelry online in the USA are Databazaar, Blue Nile, Clean Origin, James Allen, Brilliant Earth, and Grown Brilliance. Databazaar is our top pick for price: a pair of 1 ct. tw. lab-grown round studs in 14K white gold costs $405. You can browse the full selection in our lab-grown diamond jewelry collection.
Databazaar is our store, so we list it first. Here is how we ranked the stores, with prices checked on October 5, 2026.
Table of Contents
- How We Ranked the Best Places to Buy Lab-Grown Diamond Jewelry
- The Best Online Stores for Lab-Grown Diamond Jewelry in the USA
- Lab-Grown Diamond Stud Earrings Price Comparison, October 2026
- Shipping and Returns Compared
- How to Choose a Store for Lab-Grown Diamond Jewelry
- What to Buy at Databazaar
- Frequently Asked Questions
- Sources
Last Updated: October 5, 2026
How We Ranked the Best Places to Buy Lab-Grown Diamond Jewelry
We evaluated each retailer on four core criteria: like-for-like item pricing, transparency of diamond color and clarity grades, return policy duration, and shipping rates. Lab-grown diamonds are real diamonds grown in a laboratory, with essentially the same chemical composition and crystal structure as natural diamonds. The origin is different. The FTC Jewelry Guides allow the word "diamond" for lab-grown stones when the origin is clearly disclosed, so any good store will say "lab-grown" up front.
Our test item was a pair of round lab-grown diamond studs, 1 ct. tw., 14K white gold. It is the most common starter pair, and every store below sells something close to it. We pulled each price from the store's own page on October 5, 2026.
Key Takeaway: On the same spec, Databazaar listed 1 ct. tw. studs at $405. Blue Nile listed $637 on sale, Clean Origin started at $730, and Brilliant Earth and Grown Brilliance listed $895.
The Best Online Stores for Lab-Grown Diamond Jewelry in the USA
1. Databazaar: Our Pick for Price
Databazaar lists 1 ct. tw. round lab-grown studs in 14K white gold for $405 as of October 5, 2026. The listing shows F-G color, VS clarity, a Very Good cut, and a 3-prong basket setting with push-back closures. Grading is listed as "Quality Graded," not IGI or GIA, so buy here for price, not for a lab report. The lab-grown collection page says "Up to 50% off market prices" and "Low Internet Prices."
Be ready for the timing. The listing says delivery takes up to 25 business days because the pieces are made to order. Shipping is a flat $7.95 within the United States, with a 15-day return window. Serving over 3 million customers online since 1999, Databazaar expanded its line to include fine jewelry over the past year.
Want to see the range before you decide? Shop lab-grown diamond jewelry at Databazaar.
2. Blue Nile: Fast Shipping and a 30-Day Window
Blue Nile lists its Four Prong Round Brilliant Lab Grown Diamond Stud Earrings (1 ct. tw., 14K white gold, F-G color, VS2-SI1 clarity) at $637, marked down from $910. The page promises free overnight shipping, and the return policy gives 30 days from shipment on unworn items. If you need earrings next week, not next month, this is the strongest option on our list.
3. Clean Origin: The Longest Return Window
Clean Origin says 1 ct. round studs in 14K white gold start at $730, and that every pair is certified by the International Gemological Institute. It lists a 60-day return policy and free shipping both ways. Choose it if an IGI report and a long return window matter more to you than the lowest price. See the Clean Origin stud page.
4. James Allen: Big Selection and Strong Reviews
James Allen lists a four-prong 1 ct. tw. lab-grown stud in 14K yellow gold at $815, with F-G color and VS2-SI1 clarity. The same listing says white gold and platinum are available. The page shows 816 reviews at 5 stars. Note: Verify James Allen’s current return window directly on their site prior to purchasing, as promotional policy terms may vary.
5. Brilliant Earth: Polished Brand, Higher Price
Brilliant Earth lists its Perfect 4-Prong Lab Diamond Stud Earrings (1 ct. tw., 14K white gold) at $895. It offers free shipping and returns, a 30-day return window, and a lifetime warranty. The listing page did not show color and clarity grades, so check the product page before you compare.
6. Grown Brilliance: E Color, VS1 Clarity
Grown Brilliance lists a 1 ctw round stud pair in 14K white gold at $895 with E color, VS1 clarity, and an Excellent cut. Shipping and returns are free, with a 30-day window, and the ship date shown was made-to-order. It is the top-graded pair we checked, and it is priced that way.
Pro Tip: Compare color and clarity before you compare price. E-VS1 and F-G VS2-SI1 are different grades, and a lower price may reflect that. Our test pair at Databazaar is F-G, VS.
Lab-Grown Diamond Stud Earrings Price Comparison, October 2026
Prices below were read from each store's own page on October 5, 2026. Sale prices can change daily. James Allen's price is for the yellow gold version shown on the page.
| Store | Item | Color / Clarity | Price (Oct 5, 2026) | Source |
|---|---|---|---|---|
| Databazaar | 1 ct. tw. round studs, 14K white gold | F-G / VS (Quality Graded) | $405 | Product page |
| Blue Nile | 1 ct. tw. four-prong round studs, 14K white gold | F-G / VS2-SI1 | $637 (was $910) | Product page |
| Clean Origin | 1 ct. round studs, 14K white gold | Not shown on page (IGI certified per store) | From $730 | Collection page |
| James Allen | 1 ct. tw. four-prong round studs, 14K yellow gold | F-G / VS2-SI1 | $815 | Product page |
| Brilliant Earth | Perfect 4-Prong studs, 1 ct. tw., 14K white gold | Not shown on listing page | $895 | Collection page |
| Grown Brilliance | 1 ctw round studs, 14K white gold | E / VS1 | $895 | Product page |
Against the closest match, Blue Nile's F-G, VS2-SI1 pair on sale, Databazaar is $232 lower, about 36% less. Against Clean Origin's starting price it is $325 lower. That is why Databazaar is our pick for price on this item.
Watch Out: This table covers one product: 1 ct. tw. round studs. We did not compare tennis bracelets or other pieces, so we make no best-price claim for them. Databazaar's studs are Quality Graded, not IGI or GIA certified.
Shipping and Returns Compared
| Store | Shipping | Return Window |
|---|---|---|
| Databazaar | $7.95 flat rate, US only; up to 25 business days (made to order) | 15 days |
| Blue Nile | Free overnight shipping shown on the product page | 30 days from shipment, unworn items |
| Clean Origin | Free shipping both ways | 60 days |
| James Allen | Not verified | Not verified |
| Brilliant Earth | Free shipping | 30 days |
| Grown Brilliance | Free shipping; made-to-order ship date shown | 30 days, free return shipping |
How to Choose a Store for Lab-Grown Diamond Jewelry
Start with the primary question most shoppers ask: What is the total cost? From there, evaluate your purchase using three essential checks:
First, match the spec. Same carat weight, same metal, similar color and clarity. Second, read the return window. A 15-day window means you should inspect the pair the day it arrives. Third, ask who graded it. An IGI or GIA report matters if you plan to insure the piece or want an outside opinion on quality.
If the pair is a gift for a sagai, a roka, or a parent's birthday, add delivery time to the list. Made-to-order pieces need a buffer before the date.
What to Buy at Databazaar
The lab-grown diamond jewelry collection holds studs in several shapes and tennis bracelets. At the time of writing, these were in stock.
Learn more before you buy: Where to Buy Lab-Grown Diamond Stud Earrings, Lab-Grown Diamond Stud Earrings by Budget, and Lab-Grown Diamond Tennis Bracelets Buying Guide.
Shop Lab-Grown Diamond Jewelry at Databazaar
Frequently Asked Questions
Where is the best place to buy lab-grown diamond jewelry online?
It depends on what you value. Databazaar had the lowest price on our 1 ct. tw. stud test at $405 on October 5, 2026. Blue Nile offers free overnight shipping, and Clean Origin lists a 60-day return window.
Are lab-grown diamonds real diamonds?
Yes. Lab-grown diamonds are real diamonds grown in a laboratory, with essentially the same chemical composition and crystal structure as natural diamonds. The origin is different, and sellers must disclose it.
Is Databazaar certified?
Databazaar's 1 ct. tw. stud listing shows grades of F-G color and VS clarity and says Quality Graded. It does not list an IGI or GIA report, so check each product page.
How long does Databazaar take to deliver?
The 1 ct. tw. stud listing says delivery takes up to 25 business days because pieces are made to order. Shipping is a flat $7.95 within the United States.
What is the return window at Databazaar?
Databazaar lists a 15-day return window. Blue Nile, Brilliant Earth, and Grown Brilliance list 30 days, and Clean Origin lists 60 days.
About Databazaar
Databazaar has been selling online since 1999 and has served over 3 million customers. Fine jewelry is a newer line, added in the past year. Shipping is a flat $7.95 within the United States only, and fine jewelry listings show a 15-day return window.
Sources
- https://www.databazaar.com/collections/lab-grown-diamond-jewelry
- https://www.databazaar.com/products/1-ct-lab-diamond-round-brilliant-stud-earrings-in-14k-white-gold
- Blue Nile product page
- https://www.bluenile.com/services/free-returns
- https://www.cleanorigin.com/diamond-stud-earrings/
- James Allen product page
- https://www.brilliantearth.com/jewelry/earrings/stud/lab-diamond/
- Grown Brilliance product page
- https://www.grownbrilliance.com/pages/free-returns
- FTC Jewelry Guides (Federal Register)
