Best Gemhub Loose Gemstones in 2026

Daisy
Last Updated: Jul 19, 2026

At a Glance: Our Top Picks for Gemhub Loose Gemstones

Letmexc 8 Hearts & Arrows White Moissanite Loose Stone Real D Colorless VVS1 Synthetic Diamond Round Brilliant Cut for Jewery Making with GRA Certificate (0.3)
#TOP1
Letmexc 8 Hearts & Arrows White Moissanite Loose
7.2
PM SCORE
Letmexc Pink Moissanite Loose Gemstone VVS1 Round Brilliant Cut Top Quality Synthetic Diamond Stones for Jewelry Making with GRA Certificate (1.0)
#TOP2
Letmexc Pink Moissanite Loose Gemstone Vvs1 Round Brilliant
5.5
PM SCORE
1.0 Carat Per Pack Small Size from 0.7mm to 3.0mm Loose Moissanite Gemstones D Colorless VVS1 Excellent Round Cut for Custom Diamond Jewely (3.0)
#TOP3
1.0 Carat Per Pack Small Size From 0.7Mm
5.4
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Gemhub Loose Gemstones of 2026

Letmexc 8 Hearts & Arrows White Moissanite Loose Stone Real D Colorless Vvs1 Synthetic Diamond Round Brilliant Cut For Jewery Making With Gra Certificate (0.3)

LETMEXC
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Letmexc Jewelry 6.56

Features

QUALITY GURANTEE: All our moissanite will be tested before shipping , and it reaches real D colorless and the clarity scale reaches the colorless standard of VVS1. Natural Diamond Hardness is 10 and Moissanite Hardness is 9.25. so moissanite stone can not be scuffed easily.

MEASUREMENTS DETAILS: Carat weight and measurements of moissanite is as follows 0.3ct=4.0mm, 0.4ct=4.5mm, 0.5ct=5.0mm, 0.6ct=5.5mm, 0.8ct=6.0mm, 1.0ct=6.5mm, 1.2ct=7.0mm, 1.5ct=7.5mm, 2.0ct=8.0mm, 2.5ct=8.5mm, 3.0ct=9.0mm, 3.5ct=9.5mm, 4.0ct=10.0mm, 4.5ct=10.5mm, 5.0ct=11.0mm, 6.0ct=12.0mm.GREAT CUSTOMER SERVICES: All our moissanite stone arrives with a jewelry box, best for presentation and protection of the stone.

COMES WITH CERTIFICATE: Each moissanite stone has the laser number (a unparalleled GRA report number) on the girdle of the stone and comes with a Certificate of Authenticity which can be searched on the GRA website.

PEFECT FOR JEWELRY MAKING: Moissanite is the best replacement to real diamond and can be 100% passed through a diamond pen, but it’s more sparkling, brighter than the real diamond and the fire is also more stunning. it’s perfect for pendant, stud, engagement ring, wedding ring or promise ring.

NOTICE BEFORE BUYING There is an error of ±0.05mm in dimensioning and manual actual measurement. Industry rules:the weight of the moissanite is indicated as the weight of the diamond. The actual weight of the Moissanite should be the marked weight of the diamond 90%.Example: The actual weight of the moissanite marked as 1 carat is0.88- 0.91 carats.

Letmexc Pink Moissanite Loose Gemstone Vvs1 Round Brilliant Cut Top Quality Synthetic Diamond Stones For Jewelry Making With Gra Certificate (1.0)

LETMEXC
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Letmexc Jewelry 6.50

Features

Diameter and Equivalent Carat Weight: 1.0ct=6.5mm , 2.0ct=8.0mm , 3.0ct=9.0mm

Each Pink Moissanite Stone has a laser code onit , and all information os stone will be show in GRA cartificate, so this pink moissanite will comes with GRA Certificate

Each pink moissanite will be tested by our diamond tester before sending your order.

1.0 Carat Per Pack Small Size From 0.7Mm To 3.0Mm Loose Moissanite Gemstones D Colorless Vvs1 Excellent Round Cut For Custom Diamond Jewely (3.0)

LETMEXC
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Letmexc Jewelry 6.56

Features

1.0 carat per pack white D colorless small size moissanite, the size is from 0.7mm to 3.0mm. Different size has different quantity amount stones per pack , the approximate amount are as follows

0.7mm--625 Pcs, 0.8mm--430 Pcs , 0.9mm--300 Pcs , 1.0mm--220 Pcs 1.1mm--165 Pcs , 1.2mm--132 Pcs, 1.3mm--114  Pcs, 1.4mm--90  Pcs 1.5mm--68 Pcs 1.6mm--56 Pcs , 1.7mm--51 Pcs 1.8mm--44 Pcs 1.9mm--37 Pcs, 2.0mm--32 Pcs, 2.1mm--29 Pcs, 2.2mm--25 Pcs 2.3mm--21 Pcs, 2.4mm--19 Pcs, 2.5mm--16 Pcs, 2.6mm--15 Pcs 2.7mm--14 Pcs, 2.8mm--13 Pcs, 2.9mm--11 Pcs, 3.0mm--10 Pcs

Dear friend, all moissanite stones which under 4.0mm can not print laser number and send without GRA report.

Letmexc Loose Vivi Yellow 8 Hearts & Arrows Moissanite Gemstone Replacement Diamond Vvs1 Excellent Round Brilliant Cut With Gra Report For Custom Jewelry (2.0)

LETMEXC
SB-122
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Letmexc Jewelry 6.56

Features

Diameter and Equivalent Carat Weight: 1.0ct=6.5mm , 2.0ct=8.0mm

Each vivi yellow moissanite stone has a laser code, and all information of stone will showed on GRA cartificate, so this vivi yellow moissanite will comes with GRA Certificate.

Each moissanite will be tested by our diamond tester before sending your order.

Letmexc New Moissanite Loose Stone Lab Diamond Gemstone Vvs1 Positive Passed Presidium Multi Iii Diamond Tester , Without Gra Report (1.0)

LETMEXC
NM-01
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Letmexc Jewelry 6.50

Features

It is a new special Moissanite gemstone that can pass the Presidium Multi Tester III and is therefore very close to natural diamonds in terms of color, clarity, fire, refractive index, etc. This new moissanite color is closer to a natural diamond, if you're interested, check out this tester on Amazon.

Carat weight and measurements of moissanite is as follows : 0.5ct=5.0mm, 1.0ct=6.5mm

Please check our video for more information, this new moissanite is not include GRA certificate

This moissanite passed the Presidium Multi Tester III only , other tester pens are not guaranteed to pass the testing

Letmexc Real D Colorless 8 Hearts & Arrows White Moissanite Loose Stone Lab Diamond Gemstone Vvs1 Clarity With Gra Report For Custom Jewelry (6.0)

LETMEXC
LT01
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Letmexc Jewelry 6.56

Features

MEASUREMENTS DETAILS: Each moissanite gemstone has a Diamond Equivalent Weight. Carat weight and measurements of moissanite is: 4.0ct=10.0mm, 5.0ct=11.0mm , 6.0ct=12.0mm

Natural Diamond Hardness is 10 and Moissanite Hardness is 9.25. so moissanite stone can not be scuffed easily. Diamond & Moissanite maintains its clarity and sparkle throughout a lifetime.

Our round brilliant moissanite reaches D (colorless) and the clarity scale reaches the colorless standard of VVS1 with excellent polish and symmetry. TEST 100% positive with moissanite or diamond tester.

All our moissanite stone arrives with a jewelry box, best for presentation and protection of the stone.If you are not satisfied with our product, please feel free to contact us to make it right for you. full refund or a replacement will be done within 24 hours.We will make it right even if you contact us a few month after the purchase.

Top 10 loose gemstones Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Letmexc 6

Top 10 loose gemstones Brands Pie Chart


We've carried out a comprehensive analysis of 91 reviews on loose gemstones, using our selection criteria to identify the best options in the shoe, jewelry & watch accessories. Our findings reveal that most customers typically select loose gemstones priced around $61.52, with top brands including gemmartusa loose gemstone, generic, kanta incorporation, ximimark, n\c, acxico, comimark, bb beadthoven and jiangyuangems and wixine

Our team of expert editors reviewed these high-quality items and handpicked the top 6 loose gemstones for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the shoe, jewelry & watch accessories category. These include gemmartusa, zhubajie gems, radha govind traders.., the sterling silver, xie qianjin, lejinmaoyi, beadthoven jewelry, wuzhou jiangyuan gems co., ltd and khandelwal gems and liulingwan .

We are dedicated to assisting our users in finding the right gemstones Products based on their needs, saving them considerable time when choosing which loose gemstones to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.