IN 1919, MARCEL TOLKOWSKY CHANGED DIAMONDS FOREVER. The Ideal Cut Diamond was born of academic study. Marcel Tolkowsky wanted to determine the precise proportions of a diamond's cut to maximize its brilliance and dispersion of light. His studies proved that if a diamond was cut too shallow or too deep, light escaped from the bottom and sides, resulting in a loss of fire, sparkle and brilliance from the top. This led to the creation of the Ideal Cut diamond, prized for its ability to bring forth the fire and brilliance hidden in the heart of the diamond. The Ideal Cut remains the benchmark for industry excellence and the name Tolkowsky synonymous with unsurpassed excellence.
All TOLKOWSKY loose diamonds at Jared are guaranteed to score three "VERY HIGH" ratings in the measurements of Brilliance, Fire and Sparkle, as shown here in the blue bands. All TOLKOWSKY Diamond solitaire earrings are guaranteed to score two "VERY HIGH" ratings. The red bands represent the light performance of a conventional cut diamond of comparable quality and weight.Every TOLKOWSKY Diamond is accompanied by a GemEx Certificate as proof of the diamond's superior light performance. All TOLKOWSKY center diamonds are certified Ideal Cut and come with a certificate of authenticity and gemological certificate from an independent diamond grading laboratory.
Create your ring now with Tolkowsky diamonds »
If the woman you love has changed your life forever, maybe it's time to introduce her to the diamond that's changed diamonds forever. At Jared, our expert Jewelry Specialists and Diamontologists will guide you through our selection of TOLKOWSKY diamonds and hundreds of settings -all specifically selected to help you create the one ring she'll adore forever.
Find a Jared Custom Design Studio »
Frequently Asked Questions »
Only one email recipient may be specified.
The information entered on this form will not be used to send unsolicited email and will not be shared with a third party.
Your email has been sent.
At Jared we offer a full line of services - custom design, expert repair and exclusive in-store events.
View all Jared Services
Give the perfect gift that always fits.
Shop Gift Cards
Sign up for email updates to be the first to know when we have special offerings.