Signature Collections
Designed by Kathy, cut by Steve, and made by hand in our own studio.
Every piece we make begins with a stone Steve has hand-selected and a design that is Kathy’s own. These are the collections that carry our name.
The S.L. Bach Position Cut®
Our signature cut, sculpted for exceptional brilliance and fire. Engagement rings, studs and loose stones in natural and laboratory-grown diamonds and fine colored stones.
Discover the Position Cut
Seth & Reid Collection™
Couture pieces designed by Kathy and set with Position Cut sapphires, rubies, fancy yellow diamonds and more.
Explore the collection
Bespoke Commissions
Designed with you from first sketch to finished piece: engagement rings, wedding bands and heirloom redesigns, made in our own studio.
Begin a commission
The Design Library
More than 2,000 designs to begin from. Every one can be customized and set with a Position Cut® center stone.
Browse the Design LibraryFloral collars, designed by Kathy
A series of couture designs from Kathy’s Seth & Reid Collection™, each one composed flower by flower and made to order.
Have something in mind? Let’s design it together.
Request a private appointment