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✨ 3D CAD Modeling & Lost-Wax Casting Studios • Portsmouth, NH

Custom Jewelry Designers & 3D CAD Ring Studios in Portsmouth, NH [Oct 2026]

Collaborate directly with bespoke goldsmiths, 3D CAD digital modelers, and lost-wax casting ateliers along 855 Islington St, Point Rd, 63 Market St, 55 Congress Street (covering postal codes 03801) to create one-of-a-kind engagement rings or redesign inherited family heirlooms.

Portsmouth, NH Local Market Overview (Oct 2026)

Commissioning custom jewelry in Portsmouth, New Hampshire allows you to transform a sketch, photo, or inherited family diamond into a precision-crafted 14k/18k gold or platinum piece. Across Portsmouth, 20 verified studios along 855 Islington St, Point Rd, 63 Market St, 55 Congress Street offer in-house 3D CAD rendering, 3D resin/wax try-on prototypes, and hand micro-pavé stone setting.

Leading bespoke design houses in Portsmouth include DA BOX by Whiteboxjewelers.com, Prelude Boutique, Puttin' On the Glitz, backed by 594 local client reviews (4.6★ average).

Oct 2026 Bespoke Production Guide

Custom 3D CAD Jewelry Design Stages & Timelines in Portsmouth

Custom Design Stage What Happens in Studio Typical Timeline
1. Stone Measurement & Sketch Millimeter caliper mapping of heirloom or loose center stones & metal selection Day 1 (In-Store Consultation)
2. 3D CAD Digital Render & Wax Print Photorealistic 360° CAD angles + 3D printed wax model to try on your finger 3 – 7 Business Days
3. Lost-Wax Casting & Master Setting Solid 14k/18k gold or 950 platinum casting, microscope stone setting & polish 10 – 14 Business Days

Quick Comparison: Top ✨ Custom 3D CAD Design Specialists in Portsmouth

Showroom Name Location / Corridor Rating & Reviews Direct Phone
#1 DA BOX by Whiteboxjewelers.com 55 Congress Street, Portsmouth, NH 03801, USA ⭐ 4.8 (51) (603) 427-8055
#2 Prelude Boutique 63 Market St, Portsmouth, NH 03801, USA ⭐ 4.7 (54) (603) 431-0694
#3 Puttin' On the Glitz 40 Market St, Portsmouth, NH 03801, USA ⭐ 4.8 (36) (603) 436-5600
#4 I Am Grateful to You 350 Greenleaf Ave, Portsmouth, NH 03801, USA ⭐ 4.9 (16) (603) 501-9596
#5 Sheva Jewelry 960 Sagamore Ave, Portsmouth, NH 03801, USA ⭐ 4.5 (50) (603) 969-0585
#6 Market Square Jewelers 12 Market Square, Portsmouth, NH 03801, USA ⭐ 4.7 (24) (603) 430-9587
#7 Lia Gormley Fine Jewelry 18 Ladd St, Portsmouth, NH 03801, USA ⭐ 4.5 (47) In-Store
#8 Tiger Mountain 35 Dover St, Portsmouth, NH 03801, USA ⭐ 4.8 (10) (603) 430-7944

Verified Showrooms in Portsmouth, NH

#1 Verified Portsmouth Specialist ⭐ 4.8 (51 reviews)
DA

DA BOX by Whiteboxjewelers.com

📍 55 Congress Street, Portsmouth, NH 03801, USA

DA BOX by Whiteboxjewelers.com is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#2 Verified Portsmouth Specialist ⭐ 4.7 (54 reviews)
PR

Prelude Boutique

📍 63 Market St, Portsmouth, NH 03801, USA

Prelude Boutique is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#3 Verified Portsmouth Specialist ⭐ 4.8 (36 reviews)
PU

Puttin' On the Glitz

📍 40 Market St, Portsmouth, NH 03801, USA

Puttin' On the Glitz is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#4 Verified Portsmouth Specialist ⭐ 4.9 (16 reviews)
I

I Am Grateful to You

📍 350 Greenleaf Ave, Portsmouth, NH 03801, USA

I Am Grateful to You is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#5 Verified Portsmouth Specialist ⭐ 4.5 (50 reviews)
SH

Sheva Jewelry

📍 960 Sagamore Ave, Portsmouth, NH 03801, USA

Sheva Jewelry is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#6 Verified Portsmouth Specialist ⭐ 4.7 (24 reviews)
MA

Market Square Jewelers

📍 12 Market Square, Portsmouth, NH 03801, USA

Market Square Jewelers is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#7 Verified Portsmouth Specialist ⭐ 4.5 (47 reviews)
LI

Lia Gormley Fine Jewelry

📍 18 Ladd St, Portsmouth, NH 03801, USA

Lia Gormley Fine Jewelry is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#8 Verified Portsmouth Specialist ⭐ 4.8 (10 reviews)
TI

Tiger Mountain

📍 35 Dover St, Portsmouth, NH 03801, USA

Tiger Mountain is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#9 Verified Portsmouth Specialist ⭐ 4.5 (46 reviews)
VI

Vieux Port Goldsmith & Jeweler

📍 85 Daniel St, Portsmouth, NH 03801, USA

Vieux Port Goldsmith & Jeweler is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#10 Verified Portsmouth Specialist ⭐ 4.4 (54 reviews)
GE

Gembyr

📍 40 Pleasant St, Portsmouth, NH 03801, USA

Gembyr is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#11 Verified Portsmouth Specialist ⭐ 4.6 (23 reviews)
SP

Springer's Jewelers

📍 100 Market St, Portsmouth, NH 03801, USA

Springer's Jewelers is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#12 Verified Portsmouth Specialist ⭐ 4.7 (10 reviews)
J.

j. schmidt jewelry

📍 855 Islington St, Portsmouth, NH 03801, USA

j. schmidt jewelry is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#14 Verified Portsmouth Specialist ⭐ 4.5 (23 reviews)
D

D H Ostrander Goldsmith Inc

📍 855 Islington St, Portsmouth, NH 03801, USA

D H Ostrander Goldsmith Inc is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#15 Verified Portsmouth Specialist ⭐ 4.6 (4 reviews)
MO

Moisture Detection-Measurement

📍 149 oldorne Point Rd, Portsmouth, NH 03801, USA

Moisture Detection-Measurement is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#16 Verified Portsmouth Specialist ⭐ 4.3 (38 reviews)
PO

Portsmouth Jewelers

📍 801 Islington St, Portsmouth, NH 03801, USA

Portsmouth Jewelers is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#17 Verified Portsmouth Specialist ⭐ 4.5 (8 reviews)
KA

Kaya Jeweler

📍 4 Market Square, Portsmouth, NH 03801, USA

Kaya Jeweler is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#18 Verified Portsmouth Specialist ⭐ 4.2 (27 reviews)
PA

Pam A Miller Goldsmith

📍 149 oldorne Point Rd, Portsmouth, NH 03801, USA

Pam A Miller Goldsmith is an esteemed jewelry showroom and custom design studio in Portsmouth. Offering fine handcrafted jewelry, diamond collections, and master artisan craftsmanship.

Fine JewelryCustom Consultation
#19 Verified Portsmouth Specialist ⭐ 4.7 (15 reviews)
EA

EAM Jewelry

📍 855 Islington St, Portsmouth, NH 03801, USA

Discover EAM Jewelry: Portsmouth's Hidden Gem 💎 Welcome to EAM Jewelry , a luxurious jewelry boutique nestled in the heart of Portsmouth, NH . Located at 855 Islington St, Portsmouth, NH 03801, USA , this exquisite store is a treasure trove for anyone who appreciates the elegance and artistry of fine jewelry. Specializing in one-of-a-kind pieces , EAM Jewelry is dedicated to creating stunning accessories that are not only timeless but also align perfectly with the fashion-forward 2026 looks .

Custom DesignJewelry RepairsAppraisals
#20 Verified Portsmouth Specialist ⭐ 4.5 (37 reviews)
VA

Valerie's Gallery

📍 115 Market St, Portsmouth, NH 03801, USA

Discover Unique Elegance at Valerie's Gallery in Portsmouth, NH Welcome to Valerie's Gallery , your premier destination for exquisite jewelry and art in the heart of Portsmouth, NH . Located at 115 Market St, Portsmouth, NH 03801, USA , this charming gallery and boutique offers a curated selection of handcrafted jewelry, unique gifts, and captivating art pieces that cater to your individual style and taste. At Valerie's Gallery, we pride ourselves on our collection of stunning jewelry, including: Necklaces 💎 Bracelets ✨ Rings 💍 Earrings 🎁 Our pieces are crafted from the finest precious metals and gemstones, featuring the latest 2026 styles that reflect contemporary trends while maintaining an air of timeless elegance.

Custom DesignJewelry RepairsAppraisals

Frequently Asked Questions: ✨ Custom 3D CAD Design in Portsmouth

Can jewelers in Portsmouth melt my old gold or reset family diamonds into a new custom ring?

Yes. Bespoke studios in Portsmouth such as DA BOX by Whiteboxjewelers.com, Prelude Boutique, Puttin' On the Glitz routinely unset heirloom diamonds and gemstones, credit or refine your existing gold, and cast a brand-new 3D CAD mounting tailored to your exact finger size.

How long does custom engagement ring design take in Portsmouth?

Most custom 3D CAD jewelry projects in Portsmouth, New Hampshire take 2 to 3 weeks from initial digital CAD approval and wax prototype try-on to final casting and stone setting.