Custom Tanzanite and Diamond Engagement Ring
Item # 103149
Center stone sold separately.
Questions? Talk with a Joseph Jewelry designer
Description
This dazzling engagement ring features a radiant cut tanzanite double claw prong set in platinum, with round diamond accents on the band below. It was created for a client from Issaquah, WA, who brought us an existing ring and asked that we use the stones from it in a new setting. Design Your Own Engagement Ring
Read the full description
After removing the stones, we found that some of them were cubic zirconia, and so the client decided to have us source some diamonds for him rather than using the existing stones. We did still use the center tanzanite, however, and we built a beautiful design around it to highlight its wonderful color and exquisite proportions.
Tanzanite Center
The centerpiece of this ring is a 2.67 carat radiant cut tanzanite, and it’s compass set so that two of the corners are inline with the band while the other two occupy the north and south positions relative to it. This positioning is quite striking, and it helps draw attention to the elegant lines of the stone.
The tanzanite is double claw prong set in platinum, with each set of prongs coming up to curl over one corner. The prongs were one of the details that the client and designer spent the most time refining, and we sent several different versions until we’d properly captured the classical elegance of his vision. Unique Engagement Rings Seattle
Diamond Accents
Ten round diamonds are bright cut set down each shank shoulder, and these bring a lovely contrast to the rich blue of the tanzanite at the top. They also help reinforce the classical themes of the piece, while the clean, polished lines of the band hint at some contemporary flair as well.
We supplied these diamonds, as the stones in his original ring that he thought were diamonds turned out not to be. We also adjusted the number of diamonds down a bit to stay within his budget while still capturing the look he was after.

Reference specifications
- Item number
- 103149
- US ring size shown
- 6.25
- Details
- Platinum Ring
20 Diamonds - .09 ctw
Clarity: VS2 - Color: F-G
Joseph Jewelry - Center pictured
- 2.67 ct Tanzanite
- Cut
- Princess Cut
- Style
- Contemporary, Classic, Unique
- Setting style
- Bright Cut, Double Prong
- Band style
- Cathedral
- Feature
- Diamonds
- 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.