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A natural round brilliant loose diamond standing on a gray stone plinth against a deep blue backdrop

MADE IN THE USA. DIRECT FROM THE MANUFACTURER SINCE 2001.

NATURAL LOOSE DIAMONDS

Pick the exact stone first. Every card states carat, color and clarity up front, and any diamond here can be set into any design we make in our own US factory. We make all 1047 EGL-certified natural diamonds, in ten shapes, from round and princess to pear and asscher, between 0.25 and 1.70 carats each one factory-direct, with prices ranging as low as $223.99.

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All Natural Loose Diamonds for Sale by Shape, Carat and Price

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4.9 Loox · 883 verified buyers
Christian Fernandez
Jul 2026

Joel and the team are great. I there guarantee is excellent specially when looking at diamonds. Fathers day is this weekend pass by there were some cool different ideas.

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Eileen JVerified Buyer
Jun 2026

My earrings are gorgeous! I love the look and quality of them. Prime Style has never disappointed us.

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Joe RVerified Buyer
May 2026

Outstanding company. The engagement ring set I purchased was Amazing and beautiful. Very helpful staff and delivery was great. Thank you

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Nikki CVerified Buyer
May 2026

beautiful diamond and appraised for more than what we paid for it

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Alivet Perurena
Apr 2026

Great customer service, quick answers and Emely B was incredible, she even sent us a video of what the ring looked like, and then we customized it how we wanted, highly recommend buying from here

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THE DETAILS

Buying a Loose Diamond, Explained

Straight answers from the people who price and set these stones. Every order includes the PrimeStyle Jewelry Report, our in-house appraisal, with the stone’s grades and its retail replacement value for insurance, ships free in the US, is backed by a 30-day return window from the ship date, and can be financed through Affirm at checkout. Anything not answered here, contact us and we’ll check the exact stone for you.

A loose diamond is a stone sold on its own, not set in a ring or pendant. You choose the exact carat, color, clarity and shape first, then decide what to set it in. Every diamond on this page is a natural stone, never lab-grown.

Because there is no one in the middle. We make our own jewelry and sell it straight from our factory, without the markups a traditional jeweler adds at every step. You pay for the diamond, not a showroom’s rent.

On this page, a 1.00 carat natural diamond runs from $2,145.99 for a K-L color, SI3-I1 clarity stone to $3,055.99 for an I-J color, VS clarity stone. Carat is only one of the 4Cs: at the same weight, color and clarity move the price, which is why two 1 carat stones can be priced far apart.

Yes. A natural diamond’s value comes from its 4Cs: carat, color, clarity and cut. That is why the color and clarity grades are printed on every card here, and why the PrimeStyle Jewelry Report comes with every order. The stones here are EGL certified unless the listing says otherwise. You also have 30 days from the ship date to have the stone checked independently and return it if it is not what you expected.

Shape first, then carat, then balance color and clarity against your budget. Shape sets the look and carat sets the size. On color and clarity, a stone a grade or two down often looks identical to the naked eye and costs a lot less, and that is where most of the savings are. Contact us with the setting you have in mind and your budget, and we’ll point you to the stones we’d pick.

About Our Natural Loose Diamonds

Every stone here is a natural diamond sold on its own, priced on its own, so nothing is buried in the cost of a setting. We’ve made jewelry in our own US factory since 2001 and sell direct, and the stones are priced the same way.

The code on each card is the stone’s grade. The letters are color, from D (colorless) toward Z, and the code after the slash is clarity, from VVS down through VS, SI and I. A range like J-K/VS2-SI1 means the grade sits between those two.

A loose stone usually becomes a ring. Browse our diamond engagement rings for setting ideas, or bring us an idea or a sketch and our jewelers will design a custom piece around the stone you choose here.

PrimeStyle, Luxury You Can Afford
1557 NE 164th Street, Suite P
North Miami Beach, FL 33162
888-532-9440 · Toll Free sales@primestyle.com
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