4.00 Ct Cushion Green Emerald and Diamond Three Stone Ring, in white gold, front view

4.00 Ct Cushion Green Emerald and Diamond Three Stone Ring, in white gold, 360 spin

4.00 Ct Cushion Green Emerald and Lab-Grown Diamond Three Stone Ring

$995.00

$1,400.00

4.00 total carat weight

Cushion

See what customers say about Zack & Elle

Find your ring size Ring size is finger fit; carat weight is diamond weight.

Metal Type:

Metal Color:White

Ring Size:

Ring Size Guide

Ring size tells you how the band fits your finger. Diamond size tells you how large the stone looks. Check both before ordering.

Find your fit

The most reliable starting point is to have a jeweler measure the intended finger with ring sizers, ideally in a width similar to your chosen band. A physical ring sizer is also more useful than trying to judge fit from a photograph.

Measure a ring you already wear

Choose a round ring that fits the same finger on the same hand comfortably.
Measure straight across the widest part of the inside opening, edge to edge, in millimeters. Do not include the metal. A caliper is easier to read precisely than a ruler.
Compare that measurement with the inside-diameter column below. Treat a ruler measurement as an estimate; ask us to help if you are between sizes.

Measure inside edge to inside edge.
Diagram enlarged for explanation; do not use the screen as a ruler.

US ring size reference

Measurements below are rounded. Check the size selector on your chosen ring for available sizes, including quarter sizes where offered.

US Size	Inside Diameter (mm)	Inside Circumference (mm)
4	14.9	46.8
4.5	15.3	48.0
5	15.7	49.3
5.5	16.1	50.6
6	16.5	51.9
6.5	16.9	53.1
7	17.3	54.4
7.5	17.7	55.7
8	18.1	57.0
8.5	18.5	58.3
9	19.0	59.5

Get the fit right

Measure with your hands at a comfortable temperature, and check more than once. Cold, heat and activity can affect fit.
The ring should fit comfortably at the base of the finger and pass over the knuckle with some resistance. Large knuckles may need a jeweler's fitting advice.
Measure the intended hand; do not assume your other hand is the same size.
Wider bands can feel tighter. Confirm the fit using a similar-width sizer instead of automatically adding a fixed fraction of a size.
String and paper-strip measurements are rough estimates: tension, stretching and marking errors can change the result. Confirm an uncertain measurement with a physical sizer or jeweler.

See how large the diamond will look

Ask for the center stone's length × width in millimeters, the band width and the setting height. Total carat weight may include side stones, so it does not tell you the center stone's dimensions. A real on-hand photo is most useful when the model's ring size and the stone's measurements are stated.

Buying a surprise?

If possible, borrow a ring worn on the intended finger or ask someone who knows the recipient's size. Do not assume every ring can be resized. Full eternity bands and some settings have restrictions. Contact us about the specific design before choosing a size on that basis; our team can explain resizing options, cost and timing.

Need help? Call (646) 532-9004 or message our NYC team with the product link and any measurements you have.

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Variant

Ships in 5 business days

Complimentary insured US shipping; signature required. Delivery details

30-day returns on eligible unworn pieces. $75 insured return-label deduction. Full return terms

Need help choosing?

Compare settings, closures or fit with our team.

Call the NYC studio Ask about this configuration

Description

4.00 Ct | Green | Cushion Cut | Three Stone | Lab Grown Emerald

Center: 3.50 Ct Cushion Cut Lab Grown Emerald (10x8mm) | Side Accents: 2 Trapezoid Lab Grown Diamonds = 0.50 Cts | Total: 4.00 Ct | Sizes 4-9

The three-stone setting is one of fine jewelry's most purposeful designs: a strong center flanked by two stones that frame rather than distract. Here, a 3.50 Ct cushion cut lab grown emerald in vivid green is set between two trapezoid lab grown diamonds totaling 0.50 Cts. The result is a ring with genuine presence and clean geometry.

Lab grown emeralds and diamonds are real stones, not simulants, not cubic zirconia. Grown using the same conditions as their mined counterparts, they carry the same chemical and optical properties. This ring is handset in our New York City studio in the Diamond District and sold direct from the maker, so you get a 4.00 Ct fine jewelry piece without a retail markup sitting between us.

Strong choice for an engagement ring, a milestone anniversary, or a color-forward heirloom built to last generations.

Center: 3.50 Ct Cushion Cut Lab Grown Emerald (10x8mm), Green, Clean Clarity
Side Accent Diamonds: 2 Trapezoid Lab Grown Diamonds = 0.50 Cts
Total Carat Weight: 4.00 Ct
Lab Grown Emerald and Diamonds: Real stones, chemically identical to mined, not simulants, not cubic zirconia
Available in: 14K White Gold | 14K Yellow Gold | 14K Rose Gold | 18K White Gold | 18K Yellow Gold | 18K Rose Gold | Platinum
Ring Sizes: 4-9
Handcrafted in New York City | Free US Shipping
Style No. 50080-Emerald

Shipping & Returns

Complimentary fully insured FedEx shipping within the US, signature required on delivery. Dispatch time is shown above the Add to cart button; FedEx transit is 1–2 business days after that. 30-day returns on unworn pieces; a $75 insured return-label fee is deducted from your refund.

Diamond certification

Individual diamonds under 1.00 ct are not individually IGI certified. Total carat weight does not determine whether a grading report is included. Contact us to confirm the documents supplied with this piece.

Why are they more affordable?

Because the diamond is grown in weeks rather than mined over millennia, and we sell direct, you get the same beauty, certification, and durability for a fraction of the price of a comparable mined diamond.

How do I care for my diamonds?

Clean gently with warm water, a drop of mild soap, and a soft brush, then pat dry. Store each piece separately to avoid scratching. Reach out any time if you have questions about care.

4.00 Ct Cushion Green Emerald and Lab-Grown Diamond Three Stone Ring

$995.00

$1,400.00

Choose a ring size above to continue.

Diamond Details

Shape	Cushion
Total Carat Weight	4.00 ct

What customers say about Zack & Elle

Reviews of our store and service, collected through Judge.me. Some are shortened for length. Reviews of this specific piece will appear here once customers post them.

★★★★★ Travis Ála

Working with Oren at Zack and Elle was the best decision I made in this entire process. I came in knowing what she meant to me and very little about what I was actually looking for. Oren never once made me feel rushed or sold to. He asked better questions than I knew to ask, taught me what actually mattered versus what just sounds impressive, and helped me find a ring that fit her exactly. The craftsmanship speaks for itself, but what stood out even more was the care. No pressure, no games, no upselling. She said yes. The ring is stunning and she has not stopped looking at it.

★★★★★ Will Kneeland

I wanted to buy my wife an upgrade to her wedding ring set after fourteen years. Beautiful ring and matching band. Picture doesn’t do it justice. I was a little tentative about ordering a ring online, but the process was easy and my wife and I couldn’t be happier. The ring is stunning, the diamonds are top notch quality (D color on center 3ct stone), and I wouldn’t hesitate for a second to buy another diamond set from them.

★★★★★ Jack Quinlan

Absolutely wonderful company to deal with. Oren provided elite service and a great price on a 4.25ct diamond ring. I would-will definitely buy from them again. Five stars all the way!

★★★★★ Amy Hohon

I bought from them and found the size was too small (by my own fault) and the diamond was loose in the setting. Contacted them and within minutes got a response and they were more than accommodating with fixing the setting and resizing my ring. I can’t say enough about how great the communication is. Highly recommend and will buy from them again. The setting is gorgeous.

Read more customer reviews

★★★★★ virginia dowd

Working with Zack and Elle Diamonds was a complete pleasure. My eternity band is beyond what I expected. The quality and detail are amazing and communication with the owners was second to none!

★★★★★ yvonne laiVerified buyer

Love my ring! Way beyond my expectations. Hope to do another purchase soon.

★★★★★ Nachliel Pokroy

Great service, did a beautiful custom job, Highly recommend

★★★★★ Jamin Butcher

I purchased a pair of 6ct lab grown diamond stud earrings for my wife for our 10th anniversary, completely sight unseen through the Zack & Elle website, and we could not be happier. I originally ordered the earrings with screw backs, but the posts did not work well with my wife’s ears. Oren personally called me to discuss our options, and we sent them back to have them reset with jumbo push backs. The entire process could not have gone more smoothly. The quality of the diamonds, the craftsmanship, and especially the customer service exceeded our expectations.

★★★★★ Bruce Miller

Lab grown solitaire diamond earrings, 14K white gold four prong basket with screw on backs, 3.05 CTTW, D color, VS1, IGI. For $995 you're getting a great pair of earrings and photos don't do these earrings justice. Before I found Zack & Elle other stores wanted $1400+ and those were for F color 10K gold push backs.

★★★★★ Hiep Le

Bought 4 pairs 4 carats diamonds earrings, 4 prongs Martini setting, screw back, in Platinum. Oren is a great guy, always keep me informed even when he was on a trip, the shop’s staff was great… all thumbs up.

★★★★★ Jose Egas

Just got the studs, looking amazing. Great service, Oren was very helpful. Thanks

★★★★★ Martha SparksVerified buyer

Beautiful pendant. Receive many compliments. Thanks

★★★★★ Geoffrey Doster

Oren did an amazing job. I was nervous at first as I live in another state but he was able to walk me through the process and it was one of the easiest and quickest I have ever done. I will be a repeat customer.

★★★★★ Daniel Cunningham

Have made several purchases through Zack and Elle's and it's hard to imagine going anywhere else. The service provided is incredible and the jewelry is stunning. I'm a repeat customer for a reason and will continue going back!

★★★★★ Ebony SmithVerified buyer

Beautiful diamonds! Fast and safe shipping! Great Customer Service

★★★★★ anthony pozunVerified buyer

great product wife ecstatic

Free Delivery in the United States

Fully insured FedEx shipping on every order, signature required on delivery.

30-Day Returns

30-day returns on unworn pieces. A $75 insured return-label fee is deducted from your refund.

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Two generations in NY's Diamond District. Text, call, or email — real humans.

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