Our Diamonds are Natural, Real and Rare.
A diamond forms in extremely high temperatures and pressures about 150km under the earth's surface. It came into existence two billion years ago and was brought to the crust of the earth by volcanic eruptions. Of all the diamonds mined, only 5% are of gem-quality, and an even smaller fraction carry the story of where they came from. Ethically mined Diamonds support about 10 million people across India, the continent of Africa, and other countries around the world. On behalf of those 10 million people, we would like to thank you for considering a Natural Diamond for your purchase and becoming a part of its journey.
A BEACON OF TRUST
Sirius Ice stands as a beacon of trust, guaranteeing the authenticity and integrity of our diamonds. We meticulously ensure that each diamond we offer is natural, conflict-free, and traceable to its origin. Employing cutting-edge blockchain technology, we offer full traceability, enabling authentication of the precise source of our rough diamonds. Using "Diamond Time-Lapse" each diamond comes with it's own full tracability report. From mining to cutting and polishing, we vigilantly track each diamond's journey, ensuring transparency and peace of mind for our valued customers.
CREATED BY A MASTER
Mike Botha is a titan in the world of premium diamond design, cutting, and polishing. He has meticulously crafted some of the world's largest diamonds, including the legendary Premier Rose, weighing a staggering 353.9 carats in its rough state. With over four decades of international acclaim, Mike channels his unparalleled 50 years of industry mastery into his magnum opus, presenting the Sirius Star® - "The World's Brightest Diamond®", the epitome of brilliance and perfection, exclusively available online at siriusice.com.
Make that special moment truly special, with a Sirius Star - The Worlds Brightest Diamond®
MORE ABOUT SIRIUS ICE
FAMOUS DIAMANTIARE
The Revolutionary Sirius Star Diamond Design was created by master diamond cutter Mike Botha in 2012. It is considered by industry insiders as one of the greatest diamond designs ever created.
CELEBRITY DESIGNERS
Sirius Ice carries designer pieces made by high end fashion jewelry manufacturers. Browse our Engagement selection to see some of todays most creative modern artists featured work.
ETHICALLY SOURCED
We strive to ethically source our diamonds and use no chemicals or harmful products in the diamond cutting process. All the gems follow the Kimberly process which follows the diamonds from their country of origin to the final sale.
Martoni & James Ltd.
215 Newbury Street, Suite 206 Peabody, Massachusetts 01960
Mon - Fri, 10:30am - 5pm
Saturday, 11am - 5pm
Blog posts
THE ESPERANZA DIAMOND
In The Workshop
GIVING BACK
Let customers speak for us
Could not be more happy with the engagement ring and personal service. The stone is absolutely brilliant. My fiancé cannot stop looking at it and has received many complements on the rings sparkle.
Simply the most beautiful diamond available. My wife gets nothing but compliments. Jim & Jean at Martoni & James are simply the best! I wouldn't go anywhere else!
Jim is an expert and educated me on exactly why the Sirius Star is so magical!
I suggest Martini & James be your Jeweler! Jim can help you design the perfect piece !
My original engagement ring was a 3 stone GVS1 and I loved it, however once I saw the Sirius diamond in person, it blew my mind! Light reflected from every angle and it was so much brighter than my original ring. I loved the Sirius diamond so much, I bought two...one to pass-on to each of my kids when my time is up. It's an investment you won't regret!
My husband and I purchased the Sirius Star diamond together when we were getting engaged and it was the best decision we made. IMO I have brightest diamond compared to my circle of friends. Needless to say, I am proud of this piece of jewelry and I HIGHLY recommend it for anyone looking for a new engagement ring. You will not be disappointed!
Got to work with Sirius Ice to make a hand crafted beautiful engagement ring. Absolutely stunning diamond in a classically unique setting. Their work is the highest quality. We could not be happier with the final product! We’ve gone back several times since for other pieces. Always fun to work with their company!
