Custom Three Stone Diamond Engagement Ring
Item # 103354
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Description
This gorgeous engagement ring features a round brilliant cut diamond in the center, with a marquise diamond on either side to complete the three-stone setting, and additional split prong set diamond accents on the platinum shank below. It was created for a client from Woodinville, WA, who visited our Bellevue, WA showroom personally to begin the custom design process.
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He had a clear idea of the type of ring he wanted for his fiancee-to-be, and so we used the information he gave us to develop a CAD model of the piece we proposed to make. He asked to see what it would look like with a few changes made, and after reviewing the new set of images, he gave approval for us to move his project into production. Design Your Own Engagement Ring
Three-stone Setting
The centerpiece of this ring is a 1.40 carat round brilliant cut diamond. It’s prong set in platinum, and a marquise diamond is set on either side of it to complete the three-stone setting. The two marquise stones total 0.36 carats combined, and they sit inline with the band so that one corner points to the center setting, and the other guides the transition to the narrow shank below.
Our original design had pear shaped side stones, but after seeing those CAD renderings, the client requested a version with marquise diamonds in the side positions instead. Once he saw this configuration, he was sold and decided that this was the design to go with. Three Stone Engagement Rings
Diamond and Filigree Accents
Starting just beyond the end of the marquise diamonds, small round diamonds are split prong set down the shank shoulders. These continue to the mid-point on the band, adding a lovely classical flair to the design as well as some additional sparkle.
The space below the main setting on both ring fronts is filled with elegant filigree designs that incorporate swirling scrolls that transition smoothly into the prongs holding the larger diamonds. This gives the ring an elegance and grace that contributes to its classical style and perfectly complements the stunning stones at the top.

Reference specifications
- Item number
- 103354
- US ring size shown
- 6.00
- Details
- Platinum Ring
2 Marquise Diamonds - .36 ctw
14 Diamonds - .13 ctw
Clarity: VS2 - Color: F-G
Joseph Jewelry
- Center pictured
- 1.40 ct Diamond
- Gem
- Diamond
- Shape
- Round
- Style
- Classic, Three Stone
- Setting style
- Bright Cut
- 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.