Custom Diamond and Blue Sapphire Engagement Ring
Item # 1387
Center stone sold separately.
Questions? Talk with a Joseph Jewelry designer
Description
This gorgeous engagement ring features a round brilliant cut diamond in a four prong platinum setting, accented with diamonds, blue sapphires, and milgrain beading on the band below. It was created as part of a custom wedding set, and there are many ways you can modify it to make it a better match for your personal style. Design Your Own Engagement Ring
Read the full description
Our custom design process is set up to ensure you come away with exactly the piece you were hoping for, and the skills and knowledge of our artisans and designers is what enables us to provide a complete satisfaction guarantee on all custom pieces. Whether you live locally and want to work with our team in person in our Bellevue, WA showroom, or you prefer to collaborate online, we’ll modify or models until you’re sure every detail is perfect, and only then will we begin actual production of your piece. Blue Sapphire Engagement Rings
Diamond Center
A one carat round brilliant cut diamond sits atop this piece, and the four prong platinum setting holding it in place rises nearly straight up from the base of the cathedral shank below. The shank shoulders come up almost half-way on either side of the stone, but they do not touch it, and this helps to cement the position of the diamond as the centerpiece of the ring.
Diamond and Sapphire Accents
The shank shoulders are channel set with round white diamonds and princess cut blue sapphires in an alternating pattern that includes two sapphires for every one diamond. The lovely contrast between the colors of these gemstones adds a wonderful dynamic to the design, and the cut and placement of these accent stones is mirrored in the design of the companion engagement ring we made to complete the set. Diamond Engagement Rings
Matching Wedding Sets
Whether you’re ready to have both rings in your wedding set made, or you just want to focus on the engagement ring at this point, we’ll guide you smoothly through the custom design process. And even if you’re only working with the engagement ring right now, it’s a good idea to think about the kind of wedding band you’d ultimately like to have go with it, as this can inform some of the design decisions you’ll make concerning the engagement ring.

Reference specifications
- Item number
- 1387
- US ring size shown
- 6.00
- Details
- Platinum Ring
4 Diamonds - .12 ctw
Clarity: VS2 - Color: F-G
8 Sapphires - .ctw
Joseph Jewelry - Center pictured
- 1.00 ct Diamond
- Gem
- Diamond
- Shape
- Round
- Style
- Classic
- Setting style
- Channel
- 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.