Platinum 3.5 CT Emerald-Cut Lab-Grown Diamond Three-Stone Engagement Ring — Half-Moon Sides
Platinum 3.5 CT Emerald-Cut Lab-Grown Diamond Three-Stone Engagement Ring — Half-Moon Sides
A platinum three-stone engagement ring — an emerald-cut lab-grown diamond of about three and a half carats, set between a matched pair of half-moon diamonds. The emerald cut is a step cut: long, open facets that throw broad flashes of light rather than fine sparkle, with a clean architectural look. Half-moons are an uncommon choice for the sides; their rounded outer edge softens the line of the ring and keeps your eye on the center stone.
Details
- Center: approx. 3.5 ct emerald-cut lab-grown diamond — E color, VVS2 clarity, certified
- Side stones: matched pair of half-moon lab-grown diamonds — 0.75 ct. tw., F-G color, VS clarity
- Metal: platinum
- Band: a classic width — slim enough that a wedding band sits flush against it
- Setting: three-stone, claw prongs
- Also available in 14K or 18K white, yellow or rose gold
Made to order. The photographs show the mounting with a representative center stone. When you order, we source the actual diamond to your specification — so the exact size, color and clarity are settled with you before anything is set. If you want to go a little larger, or trade a clarity grade for more size, that is a conversation we have before the stone is bought rather than after. Come see it on your hand in our Sandy Springs showroom.
The center and side stones are lab-grown diamonds — chemically and optically identical to mined diamonds, and graded on the same color and clarity scales.
Designed and set at Farsi Jewelers in Sandy Springs, GA, where custom engagement rings have been our specialty since 1998. Every diamond is evaluated in person by our GIA Graduate Gemologist.
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
Platinum 3.5 CT Emerald-Cut Lab-Grown Diamond Three-Stone Engagement Ring — Half-Moon Sides
