How to Buy Lab Grown Diamonds Online
Buying a diamond online removes the chance to inspect the stone in person, so everything depends on what the retailer is willing to put in writing. These are the checks that separate a sound purchase from an expensive mistake, and they apply to every retailer — including us.
1. Independent certification on every stone
Ask whether every diamond is certified by an independent laboratory such as IGI or GIA, and whether you receive the report number. A retailer grading its own stones is not certification, however professional the document looks. The report number should be checkable on the laboratory's own website.
2. Specific grades, stated in writing
"Premium quality" and "exceptional brilliance" are not grades. Look for stated ranges — for example E-F color and VS1-VS2 clarity. If a retailer will not state the grade before you buy, treat that as the answer.
3. Solid metal, with the karat stated
Check that the setting is solid gold and that the karat is stated: 14K or 18K. Plated or vermeil settings wear through, and a diamond is only as secure as the metal holding it.
4. A returns policy measured in days and dollars
Look for three things: the length of the window, who pays return shipping, and whether there is a restocking fee. A 30-day window with free return shipping is materially different from 14 days at your own cost, particularly on a purchase over a thousand dollars.
5. A warranty that says what it covers
A lifetime manufacturing warranty covers defects in materials and workmanship — flaws in how the piece was made. It is not cover for accidental damage, loss or theft, and normal wear, including prongs worn or bent through everyday use, is usually excluded. Any retailer implying otherwise should be asked to put it in writing.
6. Insured shipping, and a stated dispatch time
Insured shipping means the parcel is covered while in transit. Check the dispatch time separately from the delivery time; a retailer that dispatches in a day is very different from one that makes to order over three weeks.
If you are buying an engagement ring
Most people searching for the best place to buy are buying an engagement ring, and a ring adds four checks of its own.
Center stone certification. The report should cover the center stone specifically, not just the ring as a whole. Ask whether side or accent stones are graded separately, or described only in aggregate.
Ring size and resizing. Ask what happens if the size is wrong. Some designs — eternity bands set with stones all the way round in particular — cannot easily be resized. Find out before buying whether resizing is offered, at what cost, and within what period.
Setting security. The prongs holding the center stone take the most wear of any part of the ring. Ask what metal they are made from. Prong wear from everyday use is rarely covered by a manufacturing warranty, so occasional check-ups are worth planning for.
Returns on made-to-order rings. If the ring is made to your specification, check whether the standard returns policy still applies. Some retailers exclude custom and engraved pieces from their returns window.
At Shop QSE, rings are not resized after purchase. Please use our ring size guide before ordering; if the size turns out to be wrong, we can exchange the ring for the correct size, subject to our exchange policy. Custom and engraved rings are made for you and cannot be returned.
What a fair price looks like
Price is driven by five things: carat weight, color grade, clarity grade, cut quality and the metal. Carat weight has the largest effect — price rises faster than weight, so a 2ct stone costs well over twice a 1ct stone of the same grade.
For reference, across the 3,652 pieces and configurations in the Shop QSE catalog, the median sits at roughly $1,350, and about three-quarters fall between $500 and $2,500. That is a reasonable benchmark for everyday lab grown diamond jewelry; engagement rings and high-carat tennis bracelets sit above it.
Warning signs
Grades given as adjectives rather than letters. Certification from the seller rather than an independent laboratory. A returns window under 14 days, or return shipping at your cost. Environmental or ethical claims with no supporting evidence. Prices dramatically below comparable certified stones elsewhere, which usually means the grades are not what they appear to be.
How Shop QSE answers these checks
Every diamond is IGI certified. Stones are E-F color and VS1-VS2 clarity. Settings are solid 14K or 18K gold. Eligible items can be returned within 30 days with the prepaid label we provide — the conditions are set out in our return policy. Custom, engraved and made-to-order pieces, and anything bought in our Sale and Clearance sections, are final sale. Every piece bought from ShopQSE.com carries a lifetime manufacturing warranty covering defects in materials and workmanship; normal wear, accidental damage, loss and theft are not covered, and repairs or resizing by a third-party jeweler void it. We recommend insuring fine jewelry. Shipping is free and fully insured. Ready-to-ship pieces are dispatched within 24 hours from Austin, Texas; custom and made-to-order pieces take 15 to 18 business days.
We would rather you ask these questions of every retailer you are considering, including us.
Common questions
What should I check before buying a lab grown diamond online?
Independent certification on every stone, grades stated as letters rather than adjectives, solid metal with the karat stated, the returns window and who pays return shipping, what the warranty covers, and whether shipping is insured.
Is it safe to buy diamonds online?
Yes, provided the retailer supplies independent certification with a checkable report number, states specific grades, and offers a clear returns policy with insured shipping.
What is a good returns policy for diamond jewelry?
A 30-day window with free return shipping and no restocking fee. Shorter windows, or policies where the buyer pays return postage, are meaningfully weaker.
How much should lab grown diamond jewelry cost?
Across the Shop QSE catalog the median is roughly $1,350, with about three-quarters of pieces between $500 and $2,500. Price rises faster than carat weight.
Does a lifetime warranty cover accidental damage?
Typically not. A lifetime manufacturing warranty covers defects in materials and workmanship. Accidental damage, loss, theft and normal wear — including worn or bent prongs — are usually excluded, which is why insuring fine jewelry is worth considering.