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Emerald-Cut Lab-Grown Diamond Half-Moon Three-Stone Engagement Ring

$2,319.00
Half-moon sides close up flat against the center's long edges. Each half-moon side stone has one straight edge and one curved edge. The straight edge sits against the long side of the emerald-cut center, so the three lab-grown diamonds join with almost no gap and form one softly rounded outline. All three are prong-set, with claws over the center's cut corners. The plain band has flat edges and a substantial, tailored feel. Of all the side-stone options, this is the closest geometric match to an emerald cut. It suits a refined, Art Deco eye.
Read the full description ↓
Metal14K White Gold
Center Stone0.65 ct Lab-Grown Diamond
Ring SizeSelect your size
Each ring is made to order and sized to you. Not sure? View the sizing guide.
In stock · ships in 2–3 business days
  • Free insured shipping on every order
  • Free 2-day express over $250Express 2‑day shipping is measured from when your piece is completed — not the order date — unless the item is in stock and ready to ship.
  • 30-day returns
  • Free lifetime warranty
Details

Half-moon sides close up flat against the center's long edges. Each half-moon side stone has one straight edge and one curved edge. The straight edge sits against the long side of the emerald-cut center, so the three lab-grown diamonds join with almost no gap and form one softly rounded outline. All three are prong-set, with claws over the center's cut corners. The plain band has flat edges and a substantial, tailored feel. Of all the side-stone options, this is the closest geometric match to an emerald cut. It suits a refined, Art Deco eye.

Choose a emerald-cut center from 0.65 to 2.85 carats. Each center is a calibrated lab-grown diamond made to an F-G color, VS clarity specification. Carat weights are nominal and each size has a published range; the 1.10 ct size, for example, runs 1.05 to 1.28 ct. Lab-grown diamonds are real diamonds, chemically and physically the same as mined ones. If you would rather pick an individually graded loose diamond, natural or lab-grown, build it in Design Your Ring.

Available in 14K white, yellow or rose gold, or platinum. The accent diamonds are lab-grown, near-colorless stones matched to the setting. Your ring is made to order in your size (US 4 to 9; see the sizing guide) and typically ships in about 5 to 10 business days by complimentary, insured UPS Express. More emerald-cut settings are in our Emerald Cut Engagement Rings collection.

Specifications
StoneLab-Grown Diamond
ShapeEmerald-Cut
Center Carat0.65 - 2.85 ct
Center Carat Options0.65 ct, 1.10 ct, 1.85 ct, 2.85 ct
ColorF-G
ClarityVS
QualityF-G color, VS clarity, lab-grown
Measurements0.65 ct = 6 x 4 mm seat (range 0.58 to 0.72 ct); 1.10 ct = 7 x 5 mm seat (range 1.05 to 1.28 ct); 1.85 ct = 8 x 6 mm seat (range 1.75 to 2.00 ct); 2.85 ct = 9 x 7 mm seat (range 2.68 to 3.00 ct)
Accent StonesLab-grown accent diamonds, near-colorless, matched to the setting
SettingHalf-Moon Three-Stone
Metal14K White Gold, 14K Yellow Gold, 14K Rose Gold, Platinum
CertificationLab-grown center sold to a stated color and clarity specification with a published carat range; not individually graded. An individually graded diamond can be sourced on request through Design Your Ring.
Selection14K White Gold / 0.65 ct Lab-Grown Diamond
Shipping & Returns

Every order ships via complimentary insured UPS Express, signature required on delivery. Ready-to-ship pieces leave us in 2–3 business days; made-to-order pieces in 5–10. Returns accepted within 30 days, and every piece carries our free lifetime warranty.

Answers, before you ask

Your Questions

Why do half-moons suit an emerald cut so well?

A half-moon's straight edge lines up exactly with the straight long side of an emerald cut, so the stones meet cleanly. The curved outer edges round off the overall shape, softening the rectangle without hiding it. The result looks deliberate and tailored, with a strong Art Deco feel.

What carat sizes does this setting take?

This setting is offered with centers from 0.65 to 2.85 ct. At the smaller end, the three stones read as a neat, compact cluster on the flat-edged band. At 1.85 or 2.85 ct the center takes the lead and the half-moons become a frame. Either way, the sides stay tight against the long edges.

What quality is the center diamond?

Every emerald-cut center is a calibrated lab-grown diamond made to an F-G color, VS clarity specification. Sizes are sold by nominal carat weight with a published tolerance range, so a stone may weigh slightly over or under the headline figure within that range. If you want a specific graded stone, Design Your Ring lets you choose one individually.

Can I have a natural diamond instead?

This ring is offered with lab-grown centers. For a natural diamond, use Design Your Ring to choose a natural loose diamond with its own grading report and set it in one of our settings, or email concierge@diamondandsapphire.com and we will help.

How long does it take to make?

Each ring is made to order in your finger size. Most ship in about 5 to 10 business days, insured and signature-required. The product page shows the current timing before you check out.

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