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Carefully sourced diamonds

Eliminates intermediary costs, with everything from sourcing to sales handled in-house.

High-quality diamonds at an affordable price.

GINZA DIAMOND SHIRAISHI established its local subsidiary, Israel SHIRAISHI, at the Israel Diamond Exchange—one of the world’s three major diamond trading hubs—in 1995.

With the philosophy of offering high-quality diamonds at affordable prices, the company continues to operate there today. Instead of purchasing through other diamond exchanges, dedicated local buyers monitor exchange rates in real time and efficiently source first-hand, high-quality diamonds.

As a result, GINZA DIAMOND SHIRAISHI is able to avoid layered markups and provide diamonds at fair, transparent, and reasonable prices directly to customers.

Hearts & Arrows pattern seen through a diamond scope: the hearts view and the arrows view

Attention to diamond sourcing

In 1995, we established Israel SHIRAISHI in one of the world’s major diamond markets.

We directly source high-quality diamonds from global markets without intermediaries, ensuring fair and transparent pricing for customers.

As Israel is part of the KPCS (Kimberley Process Certification Scheme), all diamonds are strictly regulated, ensuring they are safe, conflict-free, and of reliable quality.

Diagram comparing Ginza Diamond Shiraishi's in-house diamond sourcing with the usual supply chain from mine to retail store

Brilliance: natural light emitted by a diamond
Sparkle: brilliance seen when a diamond moves
Fire: spectral rainbow light reflected by a diamond
Symmetry: the balance and distribution of a diamond’s reflected light

Note: Sarine is an Israel-based company and the world’s largest developer and manufacturer of diamond 
grading and measurement technology.

GINZA DIAMOND SHIRAISHI professional diamond buyer

GINZA DIAMOND SHIRAISHI’s diamond buyers have extensive experience in gemological institutions and over 20 years of expertise.

Having evaluated over one million diamonds, they carefully select only the finest stones with a strict focus on quality, brilliance, and value.

View Diamond Buyers for engagement and wedding rings.
Ginza Diamond Shiraishi diamond buyer examining a diamond through a loupe