Brand Comparison

Loose Grown Diamond Alternatives

Loose Grown Diamond describes itself as a manufacturer and supplier of GIA, IGI and GCAL-certified lab-grown diamonds, established in 1984, with its own diamond manufacturing facility in India and an office in New York. This page puts its published policies beside four other jewelers selling lab-grown diamond jewelry: Beyond Carat, Rare Carat, Keyzar and MiaDonna.

Every row below is a policy each company publishes itself: what it sells, who writes the grading report, how long you have to return, what the warranty covers, where you can see a piece in person, and where it ships.

All facts quoted from each company's own pages, read on .

Beyond Carat sells lab-grown diamond jewelry and competes with Loose Grown Diamond and with every other company listed here. Their facts are quoted from their own pages read on 11 September 2026; corrections: hello@beyondcarat.com.

Five Jewelers, Five Published Policies

Loose Grown Diamond, Rare Carat, Keyzar and MiaDonna facts quoted from loosegrowndiamond.com, rarecarat.com, keyzarjewelry.com and miadonna.com, read 11 September 2026.

Jeweler Diamonds sold Grading Return window Warranty Showrooms Ships to
Beyond Carat Lab-grown diamonds only, so every piece we make is the one thing we specialise in. An IGI report travels in the box with every stone, at D, E or F colour, VVS or VS clarity and Excellent cut. 65 days from the ship date, with a prepaid insured UPS label on U.S. orders; high jewelry, special orders and custom pieces refund to store credit. A lifetime manufacturing warranty on materials and workmanship, with no claim fee when you send a piece back. Book a free video or phone consultation and we open your IGI report on screen, from our workshop in the NYC Diamond District. Free U.S. delivery by insured UPS 2nd Day Air with a signature, and international delivery is available.
Loose Grown Diamond Loose, melee and fancy-shaped lab-grown diamonds, plus handcrafted made-to-order jewelry. GIA, IGI and GCAL-certified diamonds, independently graded; GIA-certified gemologists on staff. 30 calendar days from delivery; two returns or exchanges per customer per calendar year. Covers manufacturing defects present on receipt; prong tightening, polishing and rhodium plating within 30 days. Online-first, with an office at 55 W 47th St., Suite #790, New York. Worldwide to most countries, fully insured, signature from someone 21 or over.
Rare Carat Lab-grown and natural diamonds; jewelry handcrafted in New York and New Jersey. GIA, CCAL or IGI certificates, verified by Rare Carat; girdle inscription checked. 30 days from shipment, with a prepaid label; one free resize within the first year. Lifetime manufacturer's warranty on all rings and jewelry sold. Online, with live chat staffed by GIA Graduate Gemologists. All 50 US states and Canada, free insured FedEx or UPS, adult signature.
Keyzar Lab-grown and natural diamonds, plus moissanite. GIA and IGI certificates; search filters colour J to D, clarity SI1 to FL. 30 days from the shipping confirmation date, with a prepaid insured label. Lifetime Warranty covering rhodium dipping, prong tightening, cleaning and repolishing. New York showroom, 1 Rockefeller Plaza, Suite 1110; virtual appointments. Free shipping worldwide, insured for full value, signature required on delivery.
MiaDonna Lab-grown diamonds and lab-created gemstones; B Corp certified since 2019. IGI or GIA report on graded diamonds; solitaire tiers F-VS2, E-VS1 and D-VVS2. 60 days from the original shipment date, with a prepaid FedEx label. Lifetime Manufacturing Warranty on every purchase, whatever the item type or price. Bridgeport Village flagship boutique, Oregon; private appointments of about 60 minutes. Free insured FedEx 2Day in the U.S.; DHL Express to about 50 countries.

Cells other than Beyond Carat's are quoted or summarised from that company's own pages, read 11 September 2026; every page is linked under Sources. Beyond Carat competes with all four and has no commercial tie to any of them. Something changed? Tell us.

What Each Company Publishes

Beyond Carat

Ours · lab-grown only · made to order

Beyond Carat is a women-led, lab-grown-only jeweler making every piece to order in the New York Diamond District. An IGI report is supplied with every stone and travels in the box, so the laboratory that graded your diamond is named on the certificate you keep, and the published band is D, E or F colour, VVS or VS clarity and Excellent cut on every piece, at every carat weight. U.S. orders ship free by insured UPS 2nd Day Air with a signature on delivery, and international delivery is available. Returns run 65 days from the ship date with a prepaid insured UPS label on U.S. orders, so you can live with a ring for two months before deciding; high jewelry, special orders and truly custom pieces refund as store credit. Resizing is free for a year from shipping on U.S. orders, and the lifetime manufacturing warranty on materials and workmanship carries no claim fee, so a repair under it costs you nothing.

Grading: IGI report with every stone Returns: 65 days from the ship date Showrooms: Online; free video or phone consultation Warranty: Lifetime, no claim fee

Loose Grown Diamond

Manufacturer-direct · worldwide shipping

Loose Grown Diamond's about page states that it was established in 1984, manufactures laboratory-grown diamonds in its own facility in India, and supplies GIA, IGI and GCAL-certified lab-grown diamonds alongside custom engagement rings, wedding bands and fine jewelry, with its FAQ adding that diamonds are independently graded by IGI, GIA or GCAL and that GIA-certified gemologists are on staff. Its shipping policy publishes fully insured shipments by FedEx, UPS, Aramex or USPS requiring a signature from someone 21 or over, free in the United States within 2 weeks with a $35 USD fee on orders under $500; its return policy accepts returns within 30 calendar days from delivery, with two returns or exchanges per customer per calendar year, free prepaid insured FedEx returns in the United States and up to $50 USD reimbursed internationally, one complimentary resize within 30 days of delivery, a published Price Match Guarantee, and an office at 55 W 47th St., Suite #790, New York.

Grading: GIA, IGI and GCAL Returns: 30 days from delivery Shipping: Worldwide, insured, signature 21+ Price match: Published guarantee

Rare Carat

Marketplace · US and Canada

Rare Carat's FAQ describes it as an online diamond jewelry retailer working with vetted diamond suppliers and setting manufacturers, with jewelry handcrafted in New York and New Jersey, states that diamonds are certified by GIA, CCAL or IGI and verified by Rare Carat, and publishes a lifetime upgrade program covering all GIA natural diamonds and all lab diamonds, with its diamond search offering colour filters K to D and clarity filters SI2 to FL. Its guarantee page publishes an authenticity inspection of the girdle inscription before shipping, free insured FedEx or UPS delivery to all 50 US states and Canada with adult signature, returns within 30 days of shipment on a prepaid label, one free resize within the first year, and a lifetime manufacturer's warranty on all rings and jewelry sold.

Grading: GIA, CCAL or IGI, verified by Rare Carat Returns: 30 days from shipment, prepaid label Shipping: All 50 states and Canada, insured Warranty: Lifetime manufacturer's warranty

Keyzar

Lab-grown and natural · worldwide shipping

Keyzar's FAQ states that its lab and natural diamonds are certified by GIA and IGI, with a soft or hard copy certificate or both, and its lab diamond search offers colour filters J to D, clarity filters SI1 to FL and cut filters Good, Very Good and Excellent. Its shipping policy publishes free shipping worldwide with every item insured for full value and a signature on delivery, its refund policy accepts returns within thirty days of the shipping confirmation date on a prepaid insured label, and its Lifetime Warranty covers rhodium dipping, prong tightening, cleaning and repolishing with the first resize free in the first year; appointments are offered virtually or at 1 Rockefeller Plaza, Suite 1110, New York.

Grading: GIA and IGI Returns: 30 days from shipping confirmation Shipping: Free worldwide, insured Showroom: New York

MiaDonna

Lab-grown only · 60-day returns

MiaDonna's FAQ states that it has been B Corp certified since 2019 and that all of its graded diamonds come with a complimentary grading report from IGI or GIA, and its Traditional Solitaire Engagement Ring publishes three centre-stone tiers, F-VS2, E-VS1 and D-VVS2. Its returns page publishes 60-day returns and exchanges from the original shipment date on a prepaid FedEx label, shipping is insured by FedEx 2Day in the United States and DHL Express Worldwide to about 50 countries, every purchase carries a Lifetime Manufacturing Warranty, one ring resize is complimentary within 90 days of shipping, and private appointments of about 60 minutes run at its Bridgeport Village boutique in Oregon.

Grading: IGI or GIA report on graded diamonds Returns: 60 days from shipment Showroom: Bridgeport Village, Oregon Warranty: Lifetime Manufacturing Warranty

Which Suits You

If what matters is… Beyond Carat Loose Grown Diamond Rare Carat Keyzar MiaDonna
A named laboratory on the stone An IGI report comes in the box with every stone, so the laboratory that graded it is named on your certificate. GIA, IGI and GCAL. GIA, CCAL or IGI, verified by Rare Carat. GIA and IGI. IGI or GIA on graded diamonds.
A long window to decide You have 65 days from the ship date, with a prepaid insured UPS label on U.S. orders. 30 calendar days from delivery. 30 days from shipment. 30 days from shipping confirmation. 60 days from shipment.
A published grade band Every piece is D, E or F colour, VVS or VS clarity and Excellent cut, at every carat weight. — Search filters colour K to D, clarity SI2 to FL. Search filters colour J to D, clarity SI1 to FL. Ring tiers F-VS2, E-VS1 and D-VVS2.
A warranty that costs nothing to claim Our lifetime manufacturing warranty on materials and workmanship carries no claim fee. Covers manufacturing defects present on receipt. Lifetime manufacturer's warranty on all rings and jewelry. Lifetime Warranty covering rhodium dipping, prong tightening, cleaning and repolishing. Lifetime Manufacturing Warranty on every purchase.
Delivery included in the price U.S. orders ship free by insured UPS 2nd Day Air with a signature, and international delivery is available. Free insured worldwide shipping; $35 fee on U.S. orders under $500. Free insured delivery to 50 US states and Canada. Free insured shipping worldwide. Free insured FedEx 2Day in the U.S.; DHL to about 50 countries.
Free resizing after you buy Resizing is free for a full year from shipping on U.S. orders. One complimentary resize within 30 days of delivery. One free resize within the first year. First resize free within the first year. One complimentary resize within 90 days of shipping.

About Beyond Carat

Beyond Carat is a women-led, lab-grown-only jeweler. Every piece is made to order in the New York Diamond District, and every stone arrives with its IGI report in the box. Our published band is D, E or F colour, VVS or VS clarity and Excellent cut, on every piece, at every carat weight, so you can hold us to the same standard whatever you buy.

U.S. orders ship free by insured UPS 2nd Day Air with a signature on delivery, and international delivery is available. You have 65 days from the ship date to return, with a prepaid insured UPS label on U.S. orders; high jewelry, special orders and truly custom pieces refund as store credit. Resizing is free for a year from shipping on U.S. orders, and a lifetime manufacturing warranty on materials and workmanship carries no claim fee.

If you would like a person to walk you through a stone, book a free video or phone consultation and we will open the report on screen with you.

Frequently Asked Questions

Beyond Carat, Loose Grown Diamond, Rare Carat, Keyzar and MiaDonna. Every fact other than ours is quoted from that company's own published pages, read on 11 September 2026, and every page is linked under Sources.

Beyond Carat supplies an IGI report with every stone, in the box, at every carat weight, so the laboratory that graded your diamond is named on the certificate you keep. Loose Grown Diamond: GIA, IGI and GCAL, with GIA-certified gemologists on staff. Rare Carat: GIA, CCAL or IGI, verified by Rare Carat. Keyzar: GIA and IGI. MiaDonna: IGI or GIA on graded diamonds. All read 11 September 2026.

Beyond Carat gives you 65 days from the ship date, with a prepaid insured UPS label on U.S. orders. Loose Grown Diamond: 30 calendar days from delivery, with two returns or exchanges per customer per calendar year. Rare Carat: 30 days from shipment. Keyzar: 30 days from shipping confirmation. MiaDonna: 60 days from shipment. All read 11 September 2026.

Beyond Carat ships U.S. orders free by insured UPS 2nd Day Air with a signature, and offers international delivery. Loose Grown Diamond: free insured worldwide shipping, with a $35 USD fee on United States orders under $500 and Express at $120. Rare Carat: free insured FedEx or UPS to all 50 US states and Canada. Keyzar: free insured shipping worldwide. MiaDonna: free insured FedEx 2Day in the United States and DHL Express to about 50 countries. All read 11 September 2026.

Beyond Carat offers a lifetime manufacturing warranty on materials and workmanship, with no claim fee, so a repair under it costs you nothing. Loose Grown Diamond: covers manufacturing defects present on receipt, with prong tightening, polishing and rhodium plating within 30 days of delivery. Rare Carat: lifetime manufacturer's warranty on all rings and jewelry sold. Keyzar: Lifetime Warranty covering rhodium dipping, prong tightening, cleaning and repolishing. MiaDonna: Lifetime Manufacturing Warranty on every purchase. All read 11 September 2026.

Read the Policies

Prices are not compared here because both change; compare complete-ring prices at matching certified grades on the day you buy.

See It On a Screen First

A free half-hour by video or telephone, with the IGI report open on both screens.

IGI Certified
Free U.S. Shipping
65-Day Returns
Lifetime Warranty