Platinum Cushion Purple Sapphire Diamond 3 Stone Ring

Suggested Retail: $16,540.00
Our Price: $15,600.00

Long's Signature Collection · SKU: SDR5713

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  • Platinum
  • Sapphire approx. 4.51ctw., side diamonds approx. 0.46ctw.
  • CDC Certified
  • Sri Lanki (Ceylon)
  • One of a kind

At Long’s, our engagement rings aren’t just exceptional in beauty. They’re responsibly crafted as well. With less than 10% of diamonds delivering on our expectations and accepted into our inventory, we take enormous pride in every step of the process – from sourcing exquisite stones, to cutting and polishing, to guiding you to select or create your dream setting. Whether you’re looking for brands that are driving socio-economic change, recycled stones and precious metals, or traceability from mine to finger, we are committed to building a ring that’s reflective of your values – while also ensuring that the final design meets our unwavering luxury standards.

We offer free shipping and returns on orders $50+ within the continental US. If expedited shipping is required, please contact us directly at websales@longsjewelers.com or 781.262.5854. Orders over $1,000 will require a signature upon delivery.

Most orders should be delivered within 3-7 days.

Store pickup is available on in-stock items, Tuesday - Saturday. For full details, please visit our Shipping or Returns pages.

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Our Promise To You

Superior Quality

Offering the world’s best brands and high quality pieces destined to become heirlooms

Trusted Locally

In business for over 140 years in the Boston area

Outstanding Customer Service

No sales commission means no pressure to buy

Commitment to Excellence

A+ rating by the Better Business Bureau


What Our Customers Are Saying

The only place I’ll ever buy my jewelry. I’ve purchased an engagement ring, 3 watches, wedding bands, and small employee gifts.

- Connor

The place to go when it comes to quality jewelry. Not only do they have excellent standards, but also excellent employees.

- Jessica C.

The service, product knowledge and prices are without compare. If you want a quality product with a quality company, go to Long's!

- Chris A.

Easily my favorite jeweler. I have shopped with Long's for over a year and each time I walk in, I've been welcomed by friendly and knowledgeable staff.

- Andrew

Hands down THE BEST customer service experience I’ve had shopping for jewelry. I wouldn’t go anywhere else.

- Jessica M.

There is never pressure to buy, they truly want the customer to be happy with their choice.

- EmaMay A.