1.70 ct. J/SI1 Heart Diamond
1.70 ct. J/SI1 Heart Diamond
Set it in a ring?
Choose an engagement ring setting for this diamond, or buy the diamond on its own.
Free insured shipping with tracking and signature confirmation is included with your purchase.
Through direct partnerships with leading diamond manufacturers worldwide, we provide access to an extensive inventory across all shapes, sizes, and colors while maintaining disciplined, competitive pricing. Our pricing is structured intentionally from the start rather than built around temporary promotions or inflated list prices. If you find an identical diamond offered at a lower publicly advertised price from a qualified U.S. jeweler, we invite you to share the details for review. See details
Backed by trust
Guaranteed Quality, Value & Service
Mikado Diamonds has an A+ rating by the local Better Business Bureau and member of the Jewelers Board of Trade (JBT) abiding by a strict code of ethics relating to conduct, service, standards and expertise.
We embrace ethically produced jewelry and ensure all of our diamonds are purchased from conflict free sources.
Easy, Secure Payment
Flexible Payment Options
We proudly offer peace of mind through:
♡ Secure checkout with credit/debit card
♡ Financing through Affirm (buy now, pay later)
♡ Layaway: 25% minimum deposit holds the item while you make payments. No credit check. Choose Layaway at checkout. Details
♡ BankWire: Save an additional 1.5% off the price. Your bank may charge a small service fee ($15-$25).
Shop with confidence
100% Worry Free Guarantee
♡ 30 Day Returns: 100% money-back guarantee
♡ Free Insured Shipping: USPS/FedEx Priority mail with signature confirmation
♡ Free Ring Sizing: Contact us for a free sizing tool to check your ring size. Free ring sizing within 6 months of purchase.
Get A Ring Sizer
Thousands of Happy Customers
Our Customers Are Raving
★★★★★
I'm extremely satisfied with the solitaire engagement I purchased. I was able to get a much larger diamond for the money which made her very happy!
Rex Castle
(London, OH) January 15th, 2022
★★★★★
Super customer service! Custom ordered a loose radiant cut diamond then Mike mounted in a beautiful setting. Mikado, where quality & price come together to create happy customers !
Robert N.
(Daphne, AL) 01.18.22
★★★★★
Mikado Diamonds .. they are awesome! The ring came in on time, looks perfect and fits perfectly. Mike was a huge help, walked me through the whole process. I would recommend everyone check out Mikado Diamonds for all your diamond ring needs. I would purchase from them again and again.
Dale Harner
(Luray, VA) January 19th, 2022
★★★★★
This ring is stunning. It was more than I expected and I absolutely love it. Mike was also amazing to work with. He texted me right back and answered all my questions.
Rochelle Gilbert
(Mansfield, TX) 05.16.21
★★★★★
I received my ring April 21st.,2021, it is absolutely beautiful, the quality is amazing and is beyond my expectations, everything about your service was as you said and so professional, I would recommend your company to anyone looking for a beautiful diamond ring, thank you I am beyond satisfied.
William M.
(Alva, FL) 04.23.21
★★★★★
My fiancé was across the country for a month and was coming back to our hometown to pick up me and our son. Mike made sure he got the engagement ring in less than a week, sized and all. The most beautiful ring you could ever imagine as well. Very thoughtful man with a great business!!! We will definitely be going to him for all future jewelry needs!
Kalie Kovacs
(Mt Zion, IL) 04.12.21