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β€œRING RING” β€œRING RING”

β€œRING RING”

Forever Is Calling

Shop Engagement Rings
Everyday essentials

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Everyday essentials Everyday essentials

Collections

Close-up of a luxurious oval-cut diamond engagement ring set in polished yellow gold featuring pave-set diamond details on the prongs, displaying brilliant light reflections and sparkles against a dark background.Luxurious oval-cut diamond engagement ring set in polished yellow gold, featuring pave-set prong details and displaying spectacular light reflections and brilliance on a smooth surface.
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Engagement Rings
Brilliant heart-shaped diamond stud earrings set in polished yellow gold, showcasing exceptional sparkle and light reflection on a soft gray surface.Brilliant heart-shaped diamond stud earrings set in polished yellow gold, showcasing exceptional sparkle and light reflection on a soft gray surface.
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Earrings
Stack of luxurious diamond eternity bands featuring mixed cuts including round, emerald, and marquise diamonds set in yellow and white gold, sparkling brilliantly under bright light.Stack of five luxurious diamond eternity bands featuring mixed cutsβ€”round, emerald, and marquise diamonds set in yellow and white gold or platinum, sparkling brilliantly under bright light against a dark blue background.
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Wedding Bands
Stunning stack of four diamond tennis bracelets featuring round bezel-set in yellow gold, classic round prong-set, marquise-cut, and emerald-cut diamonds in white gold or platinum, sparkling brilliantly against a dark blue background.Stunning stack of four diamond tennis bracelets featuring round bezel-set in yellow gold, classic round prong-set, marquise-cut, and emerald-cut diamonds in white gold, sparkling brilliantly against a dark blue background.
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Bracelets

RINGS BY STYLE

Three Stone

Three Stone
Solitaire

Solitaire
Side Stone

Side Stone
Floral Inspired

Floral Inspired
Hidden Halo

Hidden Halo
Three Stone

Three Stone
Solitaire

Solitaire
Side Stone

Side Stone
Floral Inspired

Floral Inspired
Hidden Halo

Hidden Halo

EXPLORE SHAPES

Discover our extraordinary collection of diamonds categorized by shape. Find your ideal cut, from round to oval, to suit your style.
Round

Round

A classic and timeless cut that maximizes brilliance and fire.
Cushion

Cushion

A soft square with rounded corners, the Cushion cut blends the classic charm of an old mine cut with the fire and brilliance of a modern round cut.
Princess

Princess

A square brilliant cut that offers excellent fire and brilliance with a modern, geometric appeal.
Emerald

Emerald

A rectangular step cut with cropped corners that emphasizes clarity and elegance.
Oval

Oval

An elongated round brilliant cut that creates the illusion of greater size and flatters the finger.
Marquise

Marquise

A boat-shaped cut with pointed ends that creates the illusion of greater size and length.
Pear

Pear

A teardrop-shaped cut that combines the brilliance of a round cut with the elegance of a marquise.
Heart

Heart

A romantic cut shaped like a heart that requires exceptional skill to create perfect symmetry.
Radiant

Radiant

A rectangular cut with brilliant facets that combines the elegance of an emerald cut with the sparkle of a round brilliant.
Asscher

Asscher

A square step cut with cropped corners that offers a vintage, art deco appeal.
Round
Cushion
Princess
Emerald
Oval
Marquise
Pear
Heart
Radiant
Asscher
Round Cushion Princess Emerald Oval Marquise Pear Heart Radiant Asscher
A classic and timeless cut that maximizes brilliance and fire.
A soft square with rounded corners, the Cushion cut blends the classic charm of an old mine cut with the fire and brilliance of a modern round cut.
A square brilliant cut that offers excellent fire and brilliance with a modern, geometric appeal.
A rectangular step cut with cropped corners that emphasizes clarity and elegance.
An elongated round brilliant cut that creates the illusion of greater size and flatters the finger.
A boat-shaped cut with pointed ends that creates the illusion of greater size and length.
A teardrop-shaped cut that combines the brilliance of a round cut with the elegance of a marquise.
A romantic cut shaped like a heart that requires exceptional skill to create perfect symmetry.
A rectangular cut with brilliant facets that combines the elegance of an emerald cut with the sparkle of a round brilliant.
A square step cut with cropped corners that offers a vintage, art deco appeal.

Specialty Cuts

Hexagon emerald-cut diamond engagement ring with vintage floral engraved yellow gold band, close-up studio shot on reflective surface
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Hexagon

Moval oval marquise diamond engagement ring with floral vine yellow gold band and scattered round accent diamonds, close-up studio shot on reflective surface
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Moval

Portuguese round brilliant diamond engagement ring in classic yellow gold solitaire setting, close-up studio shot on reflective surface
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portuguese

Vintage Dutch marquise geometric diamond engagement ring in yellow gold with tapered baguette side stones, close-up studio shot on reflective surface
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Dutch Marquise

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An elegant banner image showcasing a collection of gold solitaire engagement rings with different fancy-shaped diamonds, including emerald and oval cuts, on a navy blue background. A vertical photograph showcasing a collection of three gold solitaire engagement rings with different fancy diamond shapes, including an emerald cut and two oval cuts, on a navy blue background.

DIAMOND
EDUCATION

Learn about the β€œ4 C’s” to help you with your online diamond shopping.
Stunning oval solitaire diamond engagement ring set in polished yellow gold worn on a finger against a neutral background, highlighting its minimalist elegance.

OUR VISION

We believe beauty should never come at the cost of integrity. We’re committed to helping you celebrate life’s most meaningful moments with jewelry that reflects both love and conscience.
Elegant oval solitaire diamond engagement ring set in polished yellow gold worn on a hand, featuring a brilliant cut stone and minimalist design.

Let customers speak for us

from 364 reviews
2.9 Carat French Marquise IGI Certified Lab Grown Diamond
J.H.

This is the most beautiful thing I’ve ever seen in my life! Thank you so much for selling brilliantly unique, reasonably priced, and ethically sourced diamonds. I will be sending everyone who will listen to you guys!! πŸ’Ž

2.9 Carat French Marquise IGI Certified Lab Grown Diamond
The Ivora Setting
Spencer

Beautiful ring perfectly tailored to the specifications! My wife loves it!

The Ivora Setting
2.54 Carat Dutch Maqruise IGI Certified Lab Grown Diamond
J.L.

Absolutely beautiful. As true as what is on the site and came in just 3 days after ordering.

2.54 Carat Dutch Maqruise IGI Certified Lab Grown Diamond
Luxe Setting
Dustin

This is a beautiful setting to really make the stone shine

Luxe Setting
3.09 Carat Portuguese cut GIA Certified Lab Grown Diamond
Dustin

Amazing! I really hope she loves it!

3.09 Carat Portuguese cut GIA Certified Lab Grown Diamond
1.08 Carat Radiant GIA Certified Lab Grown Diamond
Ken

Beautiful work

1.08 Carat Radiant GIA Certified Lab Grown Diamond
1.08 Carat Radiant GIA Certified Lab Grown Diamond
Ken

Beautiful work

1.08 Carat Radiant GIA Certified Lab Grown Diamond
3.03 Carat Radiant GIA Certified Lab Grown Diamond
Ken

Beautiful work

3.03 Carat Radiant GIA Certified Lab Grown Diamond
Lab-Grown Diamond Round 4 Prong Stud Earrings
Ken

Beautiful

Lab-Grown Diamond Round 4 Prong Stud Earrings
Channel Set Round Lab Grown Diamond Unisex Band
Ken

Beautiful

Channel Set Round Lab Grown Diamond Unisex Band
Emerald Lab Grown Diamond Stud Earrings
Thomas K
Love them & The packaging

I ordered the 1 carat ones for my wife. They came in a nice box and comes with a nice cleaning cloth and travel case.

Very premium

Emerald Lab Grown Diamond Stud Earrings
Lab-Grown Diamond Heart Earrings in 14k Gold
J.R.

Beautiful, professional packaging. Love this!

Lab-Grown Diamond Heart Earrings in 14k Gold
Emerald Lab Grown Diamond Stud Earrings
G.J.

These are gorgeous!

Emerald Lab Grown Diamond Stud Earrings
Sun Belt Setting
James Anderson
Beautiful stone exceptional fire and

Beautiful stone exceptional fire and color

Sun Belt Setting
2.08 Carat Oval IGI Certified Lab Grown Diamond
James Anderson
Beautiful stone exceptional fire and

Beautiful stone exceptional fire and color

2.08 Carat Oval IGI Certified Lab Grown Diamond

STIENHARDT

STIENHARDT STIENHARDT

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Brilliant marquise-cut diamond solitaire engagement ring set in polished yellow gold featuring cluster accent diamonds on the band, illuminated by soft sunlight.

Our
Certifications

Stienhardt diamonds are graded by the three most reputable laboratories in the industry, IGI, GIA, and GCAL.
Brilliant marquise-cut diamond solitaire engagement ring set in polished yellow gold featuring cluster accent diamonds on the band, illuminated by soft sunlight.
Gemological Institute of America (GIA) Logo
Logo for Gem Certification & Assurance Lab (GCAL), an ISO 17025 accredited forensic laboratory.
International Gemological Institute (IGI) Logo

STIENHARDT

STIENHARDT STIENHARDT

CONTACT US

STIENHARDT

36 W 44th St Suite 10018 New York, NY 10036

FAQ's

Yes. Lab-grown diamonds are genuine diamonds, identical in chemical structure, hardness, and brilliance to mined diamonds. They are graded using IGI or GIA standards.
πŸ‘‰Learn more about lab-grown diamonds

Yes. Stienhardt offers a wide range of engagement rings featuring certified lab-grown diamonds, perfect for modern couples seeking ethical and high-quality options.
πŸ‘‰Design your custom engagement ring

Absolutely. You can choose the diamond, setting, metal, and design to create a one-of-a-kind engagement ring that fits your style.
πŸ‘‰ Start your custom ring design

Yes. Our collection includes elegant lab-grown diamond and classic metal wedding bands for every style.

We offer stud earrings, hoops, and drop earrings featuring certified lab-grown diamonds.

Yes. Loose lab-grown diamonds are available for purchase, ideal for custom jewelry or selecting the perfect diamond cut and size.
πŸ‘‰Explore custom rings

Clean your lab-grown diamond jewelry with warm soapy water and a soft brush. Store separately to prevent scratches and maintain sparkle.

We offer a 30-day return policy. Items may be returned or exchanged within 15 days of delivery, provided they are in new, unworn condition with the original receipt.

Yes. All Stienhardt diamonds are certified by IGI or GIA, ensuring authenticity and verified quality.
πŸ‘‰ Learn more about diamond certification

You can reach our customer care team atΒ care@stienhardt.comΒ or callΒ 917-909-6402. Our representatives are happy to assist with any questions.