Custom Diamond and Blue Sapphire Engagement Ring
Item # 1297
Center stone sold separately.
Questions? Talk with a Joseph Jewelry designer
Description
This exquisite engagement ring features a radiant cut diamond prong set in the center, with round diamond and blue sapphire accents split prong set on the split cathedral shank below. It’s a lovely example of the way a few simple design decisions can make a piece unique, and it’s a great inspiration to help guide the development of your own custom piece. Design Your Own Engagement Ring
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Diamond Center
At the top of this ring, a 0.50 carat radiant cut diamond is cradled in four platinum chevron prongs, and these highlight its perfectly square shape nicely. The prongs form out of the outer strands of the split shank, as two rise up from each side of the band. These strands are square as well, keeping the theme consistent and echoing the clean lines of the center diamond. Diamond Engagement Rings
Diamond and Sapphire Accents
Between the two outer strands of the split shank, a third continues along the original curvature of the ring, passing directly beneath the center diamond to meet its counterpart from the other side. This bridge piece is lined with round diamonds and blue sapphires split prong set in an alternating pattern that brings a lovely contrast and intricacy to the design.
The most obvious contrast comes from the rich blue color of the sapphires, of course, but the round shape of both types of accent stones creates a secondary contrast with the shape of the larger diamond above. This is echoed by the perfect arc the middle strand takes across the top of the ring, while the outer, squared strands rise up to meet the square stone at the top. Blue Sapphire Engagement Rings
Customization Options
If you’re interested in customizing this design, our team is ready to help. We can discuss your ideas with you online, or you can stop by our Bellevue, WA showroom to share your inspiration and learn about our custom design process.
There are many approaches you can take to customizing this piece. For example, you could simply use a different color sapphire to alternate with the diamonds on the middle bridge piece. Or you could switch to a different shape for the center stone. Changing to a colored metal like rose or yellow gold is an option as well, and even if you’re not sure exactly how to achieve the look you’re after, our experts will provide you with detailed models and as many example pieces as you’d like to help you create the perfect ring.

Reference specifications
- Item number
- 1297
- US ring size shown
- 5.25
- Details
- Platinum Ring
12 Diamonds - .12 ctw
12 Sapphires - .11 ctw
Clarity: VS2 - Color: F-G
Joseph Jewelry - Center pictured
- 0.50 ct Diamond
- Cut
- Asscher
- Gem
- Diamond
- Style
- Split Shank, Unique
- Setting style
- Split Prong
- Band style
- Cathedral
- Metal shown
- Platinum
- Finish
- Polished
These specifications describe the original design. Stone counts and weights are approximate and may change with size or customization.
Customize
Use this design as a starting point for a custom piece.
Discuss the stones, metal, proportions, setting and finish with a designer, online or in our Seattle and Bellevue showrooms. You can bring reference photographs or your own stone for us to assess.
Design and estimate
The initial design and estimate are free, with no obligation. Your designer discusses the materials, changes and budget with you before you commit.
3D design review
After you accept the estimate and make a down payment, we create a 3D CAD model and rendered views. Revisions within the initial design parameters are included; changes to materials or their amounts are re-estimated.
Physical model
A full-size wax model can be made to review scale, shape and proportions before production. It can be viewed in a showroom or shipped to you.
Approval and production
The design is approved before production begins. Your designer confirms the schedule, and our jewelers make, set and finish the piece.
Quality
Our custom jewelry follows design and construction standards for metal thickness, weight, stone support and setting security.
- Structure and support
- The setting must have enough metal to support the stones and hold its shape through everyday wear. If an area needs more support, we address it before production.
- Diamond and gemstone selection
- We help you choose stones for your custom design, reviewing cut, color, clarity, consistency and fit. Your budget guides these choices; our standards for materials and craftsmanship remain the same.
- Final inspection
- Before completion, we review each custom piece for proportion, comfort, stone security and finish.
Lifetime warranty and care
- Lifetime warrantyYour custom piece is covered against manufacturing defects.
- Inspection every six monthsOur jewelers inspect your piece and provide ongoing care for the custom jewelry we make for you.
- Complimentary cleaningVisit us every six months for a complimentary cleaning.
Coverage conditions
For Joseph Jewelry custom pieces, coverage begins with your signature. To keep it active, Joseph Jewelry must inspect and sign for your piece every six months and perform recommended repairs and maintenance.
Repairs due to normal wear and tear are the owner's responsibility. Damage, abuse or alterations can void coverage. Customers outside Washington pay shipping both ways for inspections or repairs, plus applicable duty or customs fees.