Gem Stone King is a leading online jewelry company. With a family legacy exceeding a century in the diamond industry, we offer fine jewelry directly to consumers. Sourcing gems directly allows us to maintain high quality while offering competitive prices.Our collection includes rings, earrings, bracelets, and pendants with diamonds and semi-precious stones. Everything we sell is of the highest quality and every piece is brand new and mainly manufactured in the United States.
Gem Stone King Jewelry (gemstoneking.com) has 578 customer reviews on Five Star Index, with an average rating of 4.6 out of 5.
Also known as
gemstoneking.com
Website
gemstoneking.com
Category
Jewelry & Watches
Location
New York, New York
Listed on Five Star Index
2026
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Most recent review: April 2026.
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My fiance bought me a beautiful Garnet engagement ring about a year ago through their Amazon store. Last week one of the side stones fell out. I contacted Gem Stone King and, since it was under their lifetime warranty, they replaced the ring at no charge! The process was quick and painless! I'll definitely be shopping with them from now on.
JN
Jessica N.
Purchased a tanzanite and diamond ring…
Purchased a tanzanite and diamond ring online. The ring is AMAZING! I've also purchased a tanzanite bracelet that I love and a diamond heart necklace. All jewelry comes with a lifetime warranty that this company stands by. My 5 year old white gold charm for my necklace tarnished a little bit. I sent it to them and they sent it back looking brand new. I will purchase ALL jewelry from this store going forward.
JA
Jami
My significant other bought me a…
My significant other bought me a beautiful ring for Christmas, but the wrong size. We sent it back before the New Year for a different size all via email, and they had the new size sent back within a week. I love my ring! It is beautiful, well made, and really just stunning! I wear it constantly and have had no issues. Thank you for such a beautiful piece of jewelry!
AV
Amanda Van W.
VERY IMPRESSED!!!
So let me start off with how I came across Gem Stone King. Last year I ordered a customized tennis bracelet with gemstones for my mother for a Christmas present. The company I ordered hers from was by Ross Simons, which was very similar to the tennis bracelet with gemstones I received today, for my birthday. Let me just say that I’m very impressed not only by the gemstones that vibrantly shine, but also the craftsmanship, which is absolutely stunning. Thank you Gem Stone King, I’m very pleased with my birthday present, and will DEFINITELY recommend to family/ friends!!!
JC
Judith C.
First purchase from Gem Stone…
First purchase from Gem Stone King...Received my pendant which was exactly as shown on web-site. I am in my late 80's and I was thrilled to see the remarkable workmanship - including the engraving.
Thank you for the prompt delivery too.
LI
Lizzy
Great company
I frequently purchase from this company on Amazon and am pleased with my purchases 99.99% of the time. I appreciate the fast shipping; I love not having to wait weeks for my lab-grown diamonds. The return process is also easy, with no questions asked if you’re not satisfied, which I really like.
However, I believe there are three areas for improvement. First, the band could be a bit heavier. It feels very lightweight and paper-thin, which makes it seem too delicate and fragile.
Second, when you buy a lab-grown diamond, whether small or large, I would like it to come with a IGI certificate and stone ID # too.
Lastly, the engagement ring heads sit too high. This is particularly noticeable with a 3 or 4-carat stone, making it look oversized and fake. A low-profile, seamless setting would be much more elegant. It wouldn’t catch on everything, and you wouldn’t have to worry about chipping, cracking, or damaging the ring in any way.
A low-profile setting is stunning, especially for larger stones, anywhere from 2 to 4 carats. I hope they make these changes, as a halo setting should look seamless. The gap created by having the stone sit so high is just not appealing; an elegant and safer design is definitely preferable.
DF
Dawn F.
Stunning jewelry and very fast delivery
Stunning jewelry and very fast delivery
DB
Deirdre B.
Very pleased with the necklace!
There was a little hiccup with shipping but the company ensured that they corrected this, and eventually sent the package by expedited FedEx mail. Great customer service and the silver necklace was exactly as pictured. Very pleased with both the service and the product.