Independent deals guide
Compare current lab-grown diamond sales, promo codes and gifts from our recommended jewelers, with ratings and advice on finding a genuinely good price.
A sale can lower the cost of a ring, earrings or a necklace, but the biggest discount does not always mean the best price. Some jewelers start with lower diamond prices; others offer designs or a shopping experience worth paying more for.
We bring the available offers together below, followed by our jeweler ratings and buying advice. Start with the quick comparison, then open the full list to see the other offers from each seller.
Some retailer links may be affiliate links, and LabGrownCarats may earn a commission if you buy through them. Source links may be untracked. Compensation does not determine our verdicts, test results, or the evidence we report.
Compare these offers from our recommended jewelers. The final price, diamond quality, and return policy matter more than the size of the discount. One highlighted offer per jeweler; the full list includes the others.
30% Off Sitewide*
Code: LD2026 · Ends Sep 8, 2026, 11:59 PM ETUp to 50% Off the James Allen Collection
Ends Sep 15, 2026, 12:59 AM ETReceive Diamond Stud Earrings with Purchase Over $1,000.
Code: DIAMOND · Purchase over $1,000 · Ends Sep 10, 2026, 2:59 AM ETFree 1 ctw Round Lab Grown Diamond Stud Earrings in Sterling Silver with Purchase of $2,000 or More
Purchase of $2,000 or moreWELCOME Discount Code
New subscribers or first orders — check terms · Code: WELCOME · Purchase of $1,000 or moreThe useful saving is the difference between complete prices for comparable jewelry. A percentage off an expensive setting may save less than choosing a lower-priced diamond elsewhere. A free gift is a bonus when your planned purchase already qualifies, not a reason to increase your budget.
For loose stones, compare the shape, carat weight, color, clarity and grading report. Our diamond price guides help you judge the starting price. For finished jewelry, also compare the metal, dimensions and total diamond weight.
Check which pieces qualify and whether the code combines with a sale price. Include the setting, chain or other parts you need, then compare the amount due at checkout. An “up to” discount describes the largest reduction in a selection, not every item in it.
Our top-rated jewelers
4.7/5★★★★★
Best overall value
4.6/5★★★★★
Best all-round experience
4.5/5★★★★★
Best for design and jewelry
4.5/5★★★★★
Best premium showroom option
4.5/5★★★★★
Best ring-builder testOur ratings reflect our editorial reviews. We may earn a commission from some links.
Ritani is our usual starting point for a loose-diamond price comparison. With Clarity is worth considering for a custom engagement ring, while Grown Brilliance offers a strong choice of finished jewelry and distinctive designs. Blue Nile combines jewelry craftsmanship with a well-rounded buying experience. Brilliant Earth is worth a look when its designs and shopping options justify the higher price for you.
The summaries above explain the trade-offs and link to our full reviews. For a broader buying decision, see our recommended jeweler comparison.
It is a useful time to compare offers, but there is no guarantee your chosen piece will be cheapest then. Keep its product details and price if you plan to wait. For a proposal or gift, leave enough time for production, delivery and any resizing.
Our Black Friday guide covers the main November event. The seasonal guides below help with other occasions.
James Allen is now a collection at Blue Nile. Check Blue Nile's current terms for any collection exclusions rather than using an old James Allen code. Lightbox has closed and is no longer a current shopping option.
Our jeweler ratings and recommendations come from the research and purchases described in the linked reviews. Offers are checked separately: we show the spending requirement and end time when available, and link to the seller's full terms. An advertised saving is not proof of a historical low. We do not reuse expired codes or assume future holiday promotions have been announced.