Six-Prong Diamond Engagement Ring with Secret Heart
Created using The Smart Diamond Ring Builder
Our experts handpick diamonds for their quality, value, and ethical sourcing, offering a more focused and personalized experience. You’ll receive only exceptional stones that meet the highest standards.
Handcrafted to withstand the test of time, this Secret Heart engagement ring hides a mystery beneath its centre stone. A delicately sculpted gold heart sits on your finger as a hidden token of love that only the two of you share.
Centre diamond pictured:
0.75 carat approx, VS2+/F+
Setting: Six-Prong setting
Band width: 2 mm approx.
Ecksand’s jewelry is entirely crafted right here in Montreal, which qualifies it for duty-free status under trade agreements between the U.S., Canada, and Mexico.
As a North American client you get to enjoy:
- No import duties—your purchase arrives without hidden fees.
- Seamless delivery—fast, hassle-free delivery under US-Canada-Mexico trade agreements
- Luxury without compromise—high-quality craftsmanship and sustainability, directly from our workshop to your doorstep.
Need it for a specific date?
SUSTAINABLE MATERIALS
Rest assured knowing that all Ecksand diamonds are ethically sourced. Natural and lab-grown diamonds above 0.50 carat are GIA- and IGI-certified respectively. Diamonds below 0.50 carat are either Ecksand-certified in compliance with the GIA grading standards, or they come with a GIA or IGI certificate (depending on the type of diamond selected).
No different than our diamonds, our curated selection of natural gemstones and pearls are ethically sourced, so their colour may vary slightly from one Ecksand piece to another.
Created for lifetime wear in our green atelier, all of our jewelry pieces are crafted with 100% recycled gold or sustainable platinum.
SHIPPING & RETURNS
We're proud to offer complimentary, worldwide, fully-insured shipping. Thanks to the US-Canada-Mexico trade agreement, jewelry shipped to the US arrives at your doorstep without any import duties, ensuring no hidden fees. For Fine Jewelry, your order is shipped within 3-4 weeks. For Engagement and Wedding Rings, your order is shipped within 5-6 weeks. If you need to return your Ecksand order, we've got you covered! Returns are accepted on select items within ten days from the date of availability. Learn more about our return policy in our FAQ.
ECKSAND PACKAGING
Ecksand’s signature packaging is included with this piece. Made from recycled materials, our packaging stays true to our sustainable values while protecting your piece for a lifetime and beyond.
SIZE GUIDE
Find Your Ring Size
Don't know their ring size? No problem! Use our Ring Size Guide to find out.
Ring Size Conversion Chart
| Ring Diameter (In MM) |
Ring Circumference (In MM) |
USA & Canada Size |
| 14.9 | 46.8 | 4 |
| 15.1 | 47.4 | 4.25 |
| 15.3 | 48 | 4.5 |
| 15.5 | 48.7 | 4.75 |
| 15.7 | 49.3 | 5 |
| 15.9 | 50 | 5.25 |
| 16.1 | 50.6 | 5.5 |
| 16.3 | 51.2 | 5.75 |
| 16.5 | 51.8 | 6 |
| 16.7 | 52.5 | 6.25 |
| 16.9 | 53.1 | 6.5 |
| 17.1 | 53.7 | 6.75 |
| 17.3 | 54.3 | 7 |
| 17.5 | 55 | 7.25 |
| 17.7 | 55.6 | 7.5 |
| 18 | 56.5 | 7.75 |
| 18.2 | 57.2 | 8 |
| 18.4 | 57.8 | 8.25 |
| 18.6 | 58.4 | 8.5 |
| 18.8 | 59.1 | 8.75 |
| 19 | 59.7 | 9 |
| 19.8 | 62.2 | 10 |
| 20 | 62.8 | 10.25 |
| 20.2 | 63.5 | 10.5 |
| 20.4 | 64.1 | 10.75 |
| 20.6 | 64.7 | 11 |
| 20.8 | 65.3 | 11.25 |
| 21 | 66 | 11.5 |
| 21.3 | 66.9 | 11.75 |
| 21.5 | 67.5 | 12 |
| 21.7 | 68.2 | 12.25 |
| 21.9 | 68.8 | 12.5 |
| 22.1 | 69.4 | 12.75 |
| 22.3 | 70 | 13 |
Quality-first design, value and care
Choosing an ethically-sourced Ecksand jewel is an eco-friendly purchase that delivers our unique Canadian expertise and craftsmanship, making a world of difference to both your jewel and our planet.
Find Your Perfect Fit
Not sure about their ring size? Discover the easiest way to measure and ensure a comfortable fit. Visit our Ring Size Guide to learn more.
This Piece is Handcrafted in our Green Atelier
All Ecksand jewels are handcrafted in our green atelier - a sanctuary, optimized for innovative positive impact. And a space where recycled gold, platinum, conflict-free diamonds and gemstones make up the noble essence of an Ecksand jewel.
