Examine Each Diamond In
360-Degree HD View
Pick Your Diamonds Wisely!
Even though certification is vital when buying a diamond, observing it under close proximity will allow you to make a wiser decision when choosing one.
Curate a beautiful engagement ring with the finest loose diamonds.
Explore Diamonds By Shape
Round
Cut with the optimum light refraction and sparkle.
Princess
A contemporary cut, with optimal fire and brilliance.
Cushion
With soft corners, a beautiful alternative to a round or princess cut.
Emerald
This stylish cut creates rectangular facets that beautifully accentuate the stone's clarity.
Oval
Optimises carat, giving the illusion of a larger stone.
Radiant
The most brilliant of the rectangular cut diamonds.
Asscher
This unique shape is a square emerald, with linear facets.
Marquise
Elongate the finger of the wearer maintaining an appearance of great size and grandeur.
Heart
A rare cut that is a true testament of your relationship.
Pear
Combining the brilliance and design of the Round and Marquise cuts.
Design your own Engagement Ring
Select your preferred diamond shape and narrow down your options by factors such as carat, color, clarity, certificate or by budget. We are highly likely to have a wide selection of diamonds matching your specifications. So choose a loose diamond of your choice and match it with a beautiful ring setting in the precious metal of your choice.
Certified DIAMONDS
Every loose diamond on Custom Design by Jacob is conflict-free and certified by one of the top 3 grading laboratories: GIA, AGS or IGI. The diamond certificates are displayed along with the loose diamond on our site.
Shop NowDiamond Education
Each diamond is individually selected and graded against its color, clarity, cut and carat weight, but the Custom Design by Jacob process goes beyond standard diamond grading. Confidently make the right choice by learning how to select your perfect diamond.
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