Diamonsbysize is located at the heart of the Israeli Diamond Exchange, in Ramat-Gan.

It was founded by Asher Eizen Vice President of the Israel Diamond Exchange and Ronen Ben Ami Member of the Israeli Diamond Exchange. Both are from leading, well reputed, diamond manufacturing families with more than 50 years of experience in the diamond industry.

Diamonsbysize was founded to serve jewelers, jewelry manufactures and wholesalers anywhere in the world,
so they can purchase only the diamonds they need in the right size, color, clarity and quantity, directly from the Israeli Diamond Exchange, comfortably and quickly. Directly from the source!

Asher with Samuel and Shay Schnitzer
Asher with Samuel and Shay Schnitzer

Diamonsbysize opens a world of new opportunities for you: It enables you, above all, to buy exactly the number of diamonds you need without the need to buy extra stock.
All the real time availability information you need is available on our site anytime, this enables you to plan your jewelry at your convenience with precision and within your budget.

Asher and Mr. Yoram Honey with the Chief Rabbi of Israel Rabbi Israel Meir Lau Asher and Mr. Yoram Honey with the Chief Rabbi of Israel Rabbi Israel Meir Lau


At Diamonds by Size we believe that providing excellent service to our customers is above all.
Our large range of different sizes, colors and clarities enable you to find exactly what you need.
We take pride in the quality of our diamonds, we'll never ship out any purchase without it going through our rigorous quality control process.

Asher and Martin Rappaprott test a 709-carat diamond Asher and Martin Rappaprott test a 709-carat diamond

We, at Diamonsbysize , want you to feel safe and comfortable with the diamonds you buy from us.

That's why we have a Worldwide free of charge shipping policy and a Full refund return policy.

Asher and Ronen with Mr. Yoram Dvash Asher and Ronen with Mr. Yoram Dvash President of the World Diamond Federation

When buying from Diamonsbysize , we promise you a safe, accurate and reliable transaction.

Our goal at Diamonsbysize is our clients satisfaction, wherever they are in the world, we do so with professionality,
courtesy, integrity, discretion and loyalty.

Buy the exact number of diamonds you need,
from 1 to 100,000!

Get the sizes and clarity you need easily.

Get it delivered to your doorstep in 7 days or
fewer!

Get the best customer service in the industry!