3 Carat Green Lab Grown Diamond Engagement Ring – Emerald Cut Halo | Lumons
10K Solid Gold / Yellow Gold
$3,999.00
Sale price
$3,999.00
Regular price
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3 Carat Green Lab Grown Diamond Engagement Ring – Emerald Cut Halo | Lumons
$3,999.00
Sale price
$3,999.00
Regular price
A 3-carat fancy vivid green lab grown diamond, emerald-cut and set in a halo design — handcrafted to order. The Lumons pairs the rarity of a green diamond with the halo design, in your choice of solid gold or platinum.
- 3ct green center — Fancy Vivid Green lab grown diamond, VS clarity
- Emerald cut for the hall-of-mirrors clarity reveal that's signature to step cuts
- Side stones: Approximately 16 pavé round brilliants (~0.5 ct total)
- Band width: 3mm — substantial band to support the 3ct center
- IGI® or GIA® certified — independent grading report included
- Your choice of metal: 10K, 14K, 18K solid gold or platinum
- Free worldwide insured shipping + lifetime warranty
Made to order in 1–2 weeks · 30-day returns · Starting at $3999.00
Have questions about this ring?Talk to a real diamond expert — we typically respond within 24 hours.
Contact us →
Full Specifications
| Specification | Detail |
|---|---|
| Center Stone | 3 ct Lab Grown Diamond, Fancy Vivid Green, Emerald, VS Clarity, Excellent Cut |
| Center Stone Size | 10x7mm · Diamond size guide |
| Setting | Halo |
| Side Stones | Approximately 16 pavé round brilliants (~0.5 ct total) |
| Total Carat Weight | 3 ct center (accent carat varies by configuration) |
| Band Width | 3mm |
| Metal Options | 10K, 14K, 18K Solid Gold, Platinum Pure |
| Metal Colors | Yellow, Rose, White Gold |
| Certification | IGI® or GIA® diamond grading report |
| Production | Handcrafted to order — 1–2 weeks |
| Included | Free insured worldwide shipping, lifetime warranty, 30-day returns |
Why Mohana
For couples who want a real, certified diamond crafted to their exact specifications — without the retail markup of a national chain.
- Made to order, not pulled from inventory — every ring is handcrafted to your stone, finger size, and metal choice over 1–2 weeks. Your ring has never been worn or sat in a display case.
- Direct-from-workshop pricing — you pay for the diamond, the metal, and the craftsmanship. No retail floor, no franchise markup, no middleman.
- Every center stone IGI® or GIA® certified — independent grading report ships with the ring. Verify the specifications directly on the IGI or GIA portal.
- Custom variations welcome — different carat, shape, metal, or setting? Our craft team can quote any reasonable modification before production begins.
- Real human concierge — contact us directly for diamond questions, sizing help, or custom requests. We respond personally — not via bot.
About Green Lab Grown Diamonds
Fancy green diamonds are among the rarest colored diamonds on earth — naturally green diamonds owe their color to millions of years of natural radiation exposure deep in the earth, and only a tiny fraction of mined diamonds show true green saturation. Mined fancy greens routinely sell for hundreds of thousands of dollars per carat. Lab grown technology makes the romance of a true green diamond accessible without the geologic wait or the financial barrier.
Mohana's green lab grown diamonds are chemically, optically, and physically identical to mined green diamonds — graded by the same IGI and GIA laboratories using the same scales. The color is part of the diamond's atomic structure (induced via irradiation color centers), not a surface treatment, and will not fade.
Green diamonds pair most beautifully with yellow gold settings, where the warm gold complements the green saturation — a pairing rooted in the centuries-old tradition of emerald-and-gold jewelry. For a cooler, more modern look, choose white gold or platinum. Explore the full green diamond collection.
Frequently Asked Questions
Are green lab grown diamonds real diamonds?
Yes. Lab grown green diamonds are 100% real diamonds — same crystal structure, same hardness (10 on the Mohs scale), same optical brilliance as mined green diamonds. Every Mohana green diamond is certified by IGI or GIA.
How many side stones does this ring have?
Approximately 16 pavé round brilliants (~0.5 ct total). For exact stone count on your specific configuration, our craft team can confirm before production — contact customer support.
What is the band width of this ring?
The band (around your finger) measures 3mm wide. At 3mm the band balances the visual weight of a 3-carat center in the halo setting — slim enough to wear daily, substantial enough to hold the design securely. The band width is consistent across all metal options.
How much does a 3 carat green lab grown diamond engagement ring cost?
The Mohana Lumons starts at $3999.00 in 10K solid gold and scales up with 14K, 18K, and platinum. A natural mined green diamond of comparable size and saturation would cost $200,000 to $2M+.
Will the green color fade over time?
No. The color in a lab grown green diamond is part of the diamond's atomic structure (irradiation-induced color centers, just like in nature), not a treatment. It will not fade over a lifetime of wear.
Can this ring be resized?
Yes — complimentary resizing within the first year. Full eternity bands are the exception due to their continuous diamond setting.
What is a halo setting?
A halo of small diamonds surrounds the center stone, amplifying its visual size and adding sparkle from every angle.
What's included with my ring?
The IGI® or GIA® grading report, a signed Mohana certificate of authenticity, free worldwide insured shipping, a lifetime craftsmanship warranty, a 30-day return window, and complimentary resizing within the first year.
How long does it take to make and ship?
Each ring is handcrafted to order in 1–2 weeks, then ships free worldwide with full insurance.
Can I customize this ring?
Yes — contact our team through customer support to request a custom variation in a different carat, shape, or metal combination.
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