Men's Onyx and Princess-Cut Diamond Ring in 18K Yellow Gold — Custom Design
Men's Onyx and Princess-Cut Diamond Ring in 18K Yellow Gold — Custom Design
A men's ring being built right now in our Sandy Springs shop — a black onyx centre held in a clean bezel, flanked by two princess-cut diamonds, with hand-detailed scrollwork carried down both shoulders and pierced through the gallery so light passes behind the setting.
You are watching this one get made. Every bespoke piece here goes through the same three stages, and this listing will show all three as they happen.
- The 3D design. We model the ring in CAD and render it in the finished metal — down to the black onyx and the diamonds — so you can turn it over and look at it from any angle before anything physical exists. That is the interactive viewer on this page — press play and spin it.
- The printed model. We print it at high resolution and set the actual centre stone into the print. The photograph in the gallery is that model, with the real onyx already in it and the side seat still open. You put it on your hand, in daylight, and tell us what to change while changing it is still free.
- The finished ring. Only once you have approved the model do we cast it in gold. Photographs of the finished piece will be added here when it comes off the bench.
Details
- Centre stone: black onyx, bezel set
- Side stones: two princess-cut diamonds
- Metal: 18K yellow gold
- Design: pierced gallery with hand-detailed scrollwork on both shoulders
- Status: in production — 3D design and printed model complete, casting to follow
- Made to order in your size, and available in 18K white gold, rose gold, or platinum
Want one like it, or something entirely your own? This is exactly what our 3D Bespoke Method is for — you see it, spin it, wear the model, and approve it before we cast.
Every diamond and gemstone at Farsi Jewelers is evaluated in-house by a GIA Graduate Gemologist. Custom design has been our specialty in Sandy Springs since 1998.
Questions or Custom Requests? Reach Out to Us!
Our team is available Monday through Saturday to assist you with your enquiries. Email us here or text on 770-206-8000.
Lifetime Care, Sustainability & Our No-Surprises 3D Bespoke Promise
Stop by our Sandy Springs showroom for complimentary jewelry cleanings and inspections—handled by our artisan jewelers with a GIA Graduate Gemologist on site. New purchases and custom work include a 90-day complimentary adjustment period for sizing/fit tweaks.
Walk-ins welcome when we’re not at bench capacity.What’s Included
- Complimentary cleanings: steam/ultrasonic (when safe) or gentle hand cleaning; ~10–15 minutes.
- Routine inspections: prongs, tips, channels, clasps/links, and stone security—catch issues early.
- 90-day complimentary adjustments: one sizing or fit tweak on new/custom pieces.
- White gold & rhodium guidance: when to re-plate and how to extend wear.
- Care education: at-home cleaning tips, safe storage, and when to remove jewelry.
How It Works
- Visit our showroom in Sandy Springs. Bring your ring, bracelet, chain, or earrings.
- We inspect & clean on the spot. If we see wear or a loose stone, we’ll show you under magnification.
- Leave with sparkle. If a repair is needed, we’ll quote options and timelines right away.
When Should I Visit?
- Before/after travel, beach, or pool season.
- After a hard knock—or if you hear/feel a rattle.
- Every 3–6 months for daily-wear rings (engagement/wedding).
- White gold looking dull? Time to discuss rhodium.
Helpful Guides
- Diamond Stud Size Guide →
- Lab-Grown vs Natural: Sandy Springs Answer →
- Custom Jewelry Design Process →
Gentle, non-toxic, and effective — Lavish Jewelry Cleaner keeps your jewelry shining safely. Shop online.
Sourcing & Sustainability
Every piece we create is backed by transparent sourcing — documented origin, ethical practices, and (on select pieces) independent sustainability ratings.
- Conflict-free diamonds: sourced only from Kimberley Process-compliant suppliers.
- Certified stones: natural and lab-grown diamonds include third-party grading, with certificates provided.
- Recycled metals available: we can craft pieces in recycled gold or platinum with refinery documentation.
- SCS Sustainability Rated diamonds: select lab-grown diamonds carry an independent SCS Global Services sustainability rating.

Ready for a quick sparkle check?
Visit us in Sandy Springs: 6128 Roswell Rd, Atlanta, GA 30328
View our complete size guide →
Find your perfect fit — ring, necklace, or bracelet. Use the charts below to measure at home, or visit us in Sandy Springs and we'll measure you in person, free.
Ring Size Chart — US Sizes & Millimeters
Already have a ring that fits the right finger? Measure straight across the inside of it in millimeters and match it below. Not sure? Bring it in — we'll size it in seconds.
Measure the inside diameter of the ring in millimeters.
| US / Canada Size | Inside Diameter |
|---|---|
| 3 | 14.1 mm |
| 4 | 14.9 mm |
| 5 | 15.7 mm |
| 6 | 16.5 mm |
| 7 | 17.3 mm |
| 8 | 18.1 mm |
| 9 | 19.0 mm |
| 10 | 19.8 mm |
| 11 | 20.6 mm |
| 12 | 21.4 mm |
| 13 | 22.2 mm |
Half sizes fall right between the rows — and we fit most rings to your exact size at our bench.
Necklace Length Guide
Where a chain sits depends on its length and on your height and build. Use this as a guide, then try lengths on in person to be sure.
Every length starts at the neck — longer chains simply hang lower.
| Length | Style | Where It Sits |
|---|---|---|
| 14" | Collar | Snug around the neck |
| 16" | Choker | Base of the neck |
| 18" | Princess | Just below the collarbone |
| 20" | Matinee | Top of the bust |
| 24" | Opera | Below the bust |
| 30–36" | Rope | Long, or doubled up |
Bracelet Sizing Guide
Wrap a soft tape measure or a strip of paper snugly around your wrist, just above the wrist bone, then match your measurement below.
Wrap the tape around your wrist, just above the wrist bone.
| Wrist Measurement | Bracelet Size | Fit |
|---|---|---|
| 5.5–6" | Small | Snug on petite wrists |
| 6–6.5" | Medium | Comfortable on most wrists |
| 6.5–7" | Large | Relaxed, or larger wrists |
| 7–7.5" | Extra Large | Oversized or layered look |
Tip: add about ¼–½" to your wrist measurement for a comfortable fit — a little more for bangles and cuffs.
Come by our Sandy Springs showroom or give us a call — we'll measure your ring, necklace, or bracelet size for free, whether or not the piece came from us.
Book a fitting →
Looking for more tips and guides? Explore our Jewelry Learning Center →
Complimentary Sizing
Appraisal Included for items over $1000
Jewelry Box with Every Purchase