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About Leiser & Co

Learn more about our Values

Leiser & Co. has earned an outstanding reputation for delivering high quality certified diamonds and other precious and semi-precious stones. From twenty points to over twenty carats, round and fancy shaped diamonds, we cater to the most discerning customers who require their expectations not only be met – but exceeded. With a large inventory at our fingertips, we are able to promptly address our customers needs for specific stones, consistently reliable quality and rapid delivery of orders.

Over the years, our company has worked very closely with its customers to earn and maintain their respect and loyalty. We meet personally with existing and new customers to become well acquainted with their needs to ensure the highest levels of service at all times.

When jewellery professionals turn to Leiser & Co., they place their confidence in the company’s unparalleled reputation for quality, honesty and expertise. We reward their commitment by providing free shipping on all of our stones and above all, exceptional service that knows no limit.

Since inception, we have firmly believed in recognizing our Corporate Social Responsibility and therefore we only sell conflict free diamonds. Additionally, to deliver complete peace of mind, every diamond we offer for sale is evaluated by expert gemologists in order to ensure its quality and is certified by the GIA, IGI or HRD laboratories to ensure authenticity.