Penfine Custom Engagement Ring Guide

Custom Engagement Ring Guide

By Penfine | Updated on 11/03/2025

The search for an engagement ring is an intimate journey — one that transcends trends and speaks to the essence of your story. At Penfine, we believe an engagement ring should feel singular, intentional, and quietly extraordinary, crafted to honor the love it represents.

Our curated collection offers a refined range of designs ready to be tailored to your vision — from timeless Solitaire silhouettes and expressive Nature Inspired designs to intricate Celtic Knot motifs, dramatic Gothic styles, and refined Split Shank settings. For those drawn to artistry beyond the traditional, our moss agate, alexandrite, moissanite, and colored gemstone engagement rings offer a modern, distinctive interpretation of elegance.

For couples seeking a piece that exists nowhere else, our bespoke design service invites you into a world of thoughtful craftsmanship and meticulous personalization. In this comprehensive guide, we unveil the Penfine customization process — a journey where your ideas evolve into an heirloom created exclusively for you.

Penfine Custom Engagement Ring Guide
STEP 1
Select a Style
STEP 2
Select Stones
STEP 3
Select a Metal
STEP 4
Select Settings
STEP 5
Contact Us
STEP 6
Place Order
STEP 7
Propose

1. Select A Style

Discover an array of engagement ring styles designed to reflect who you are and what you love. At Penfine, every ring begins with a story — from Nature-Inspired silhouettes to timeless Solitaires, romantic Clusters, symbolic Celtic Knots, dreamy Moon motifs, and bold Gothic designs. Each piece is thoughtfully crafted to capture emotion, meaning, and your unique connection.

If you’re planning a surprise proposal, choosing the right style becomes even more meaningful. Pay attention to your partner’s everyday fashion, accessories, and lifestyle — these subtle details often reveal whether she prefers something classic, modern, minimal, ornate, or nature-inspired. You can also check her Pinterest boards or saved posts; many people quietly bookmark their dream rings without realizing it.

Along with personalizing any of our existing designs, Penfine also welcomes fully custom creations. Whether it’s a small detail or a completely one-of-a-kind concept, we’re here to bring your vision to life.

2. Select Stones (Type)

At Penfine, Moissanite remains one of our most loved gemstones — cherished for its brilliant fire and mesmerizing iridescence. If you’re looking for color, sapphire is a beautiful choice, available in nearly every shade imaginable: classic blues, ocean teals, soft yellows, romantic purples and pinks, and even elegant white. For nature lovers, the deep green glow of emerald offers a rich, organic charm.

If you’re exploring something more distinctive, we also work with a variety of unique stones such as moss agate, alexandrite-style variegated stones, opal, sunstone, and moonstone — perfect for those who want a ring that truly stands apart.

For designs that aren’t solitaires, remember to consider the accent stones as well. The right combination of center and side stones can completely elevate the overall look.

These are just some of our most popular options, but we work with many more gemstone types. If you have a specific stone in mind that isn’t listed here, simply reach out — we’d love to help bring your vision to life.

2. Select Stones (Shapes)

Most importantly, there’s no single “right” gemstone shape — each cut has its own charm and character. Take your time exploring the different silhouettes and notice which one speaks to you. Choose the shape that feels most meaningful, and let it become the heart of your ring.

3. Select a Metal

Select a Metal

Choosing the right metal sets the tone for your entire ring and ensures it lasts beautifully over time. At Penfine, we offer a full range of metals to match every style — including 925 sterling silver, 10K/14K/18K gold, and platinum.

Our gold options come in four distinct colors:

Yellow Gold – warm, classic, and timeless.

Rose Gold – romantic with a soft blush tone.

White Gold – modern, elegant, and versatile.

Black Gold – bold, edgy, and uniquely eye-catching.

Sterling silver is an affordable choice, but it may oxidize or lose plating color with everyday wear. For long-lasting durability, solid gold remains the most popular option, offering strength and enduring beauty in all four shades. If you prefer premium white metals, platinum is naturally bright, hypoallergenic, and incredibly durable.

Choose the metal that best fits your partner’s style and personality — it forms the foundation of a ring they’ll love for a lifetime.

4. Select Settings & Ring Size

Stones falling out of the rings is something we never want to happen, and choosing the right settings for different center stone shapes can greatly reduce the occurrence of such incidents. The round prong setting is our most popular choice because it provides stability without obscuring too much of the stone. As for the petite claw prong, it is a combination of round prongs and claw prongs and can be considered an upgrade. It protects the center stone of the cabochon (especially opals) better than round prongs while not covering as much as claw prongs. If you would like to choose princess cut, shield cut, marquise cut, etc. as the center stone, the cornered prong maintains the sharp look while protecting the corners of the stone.

Prong Settings

In addition to the shape of the prongs, increasing the number of prongs and changing the position can make a difference. We have listed a few common options in the picture for your reference.

RING SIZE GUIDE

Getting the right size is crucial for a perfect fit. Here's how to measure:

  1. Wrap a piece of string or paper around the base of the finger.
  2. Mark the point where it overlaps.
  3. Measure the length with a ruler (in mm) and match to our size chart below.
US Size 5 6 7 8 9
Circumference (mm) 49.3 51.8 54.4 56.9 59.5

Note: If measuring is not possible, we offer free resizing within 30 days of delivery.

5. Contact Us

Once you've finalized your design preferences (style, stones, metal, setting, size), reach out to our custom design team to discuss details.

Our experts will guide you through the process, provide 3D renderings of your design for approval, and answer any questions about materials, craftsmanship, or delivery timelines.

You can contact us via the form below, email (), or live chat on our website. We typically respond within 24 business hours.

Order Process 1
Custom Ring Design & Quote Confirmation
Order Process 2
Production, Quality Check & Shipment Preparation

6. Place Your Order

After finalizing the design and receiving your approval on the 3D rendering, we'll send you a formal quote and order confirmation.

To secure your order, a 50% deposit is required. The remaining balance is due before shipment. We accept all major credit cards, PayPal, and bank transfers.

Order Process Timeline

  1. Deposit payment & order confirmation (1-2 business days)
  2. Gemstone selection & quality inspection (3-5 business days)
  3. Craftsmanship & production (2-4 weeks, depending on complexity)
  4. Quality control & final inspection (1-2 business days)
  5. Balance payment & shipment (1-3 business days)

All custom rings come with a certificate of authenticity, gift box, and a 1-year warranty covering craftsmanship defects.

7. Plan Your Perfect Proposal

Your custom engagement ring is ready — now it's time to create a moment she'll never forget! Here are some tips to make your proposal extra special:

  • Choose a meaningful location: Where you first met, had your first date, or a place she's always wanted to visit.
  • Incorporate personal touches: Write a handwritten letter, play her favorite song, or include loved ones (if she'd appreciate it).
  • Capture the moment: Hire a photographer to secretly document the proposal, or ask a friend to take photos.
  • Relax & be authentic: Speak from the heart — no need for a perfect script. Just tell her why you love her and want to spend forever together.

After she says "yes," don't forget to celebrate! Whether it's a quiet dinner for two or a gathering with friends and family, cherish the moment.

Congratulations on this exciting chapter — we're honored to have been part of your love story!