3.5 Carat Lab Grown Diamond Engagement Ring – Elongated Oval Three-Stone with Half-Moon Sides | Arabella
A 3.5-carat colorless lab grown diamond, elongated-oval cut and set as a three-stone ring between two half-moon white diamonds — every stone bezel-set in 14K yellow gold. Handcrafted to order in your choice of 10K, 14K or 18K yellow, white or rose gold, or platinum. The long, graceful oval is wrapped in a smooth gold bezel and flanked by two half-moons in matching bezels, for a clean, contemporary three-stone silhouette.
- 3.5ct colorless centre — elongated oval-cut lab grown diamond, VS1 clarity
- Half-moon sides — two half-moon-cut white lab grown diamonds, 1.64 ct total
- Bezel-set three-stone — centre and sides each wrapped in a full gold bezel
- Your choice of metal: 10K, 14K, 18K solid gold or platinum — shown in 14K yellow gold
- Elongated oval cut — a flattering, finger-lengthening silhouette
- IGI® certified — independent diamond grading report included
- Handcrafted to order — made for you in 1–2 weeks, in your ring size (US 4–12)
- Free worldwide insured shipping + lifetime warranty
Made to order in 1–2 weeks · 30-day returns · Starting at $3,330.00
Full Specifications
| Specification | Detail |
|---|---|
| Center Stone | 3.5 ct Lab Grown Diamond, Colorless, Elongated Oval Cut, VS1 Clarity |
| Side Diamonds | 1.64 ct total — two half-moon-cut white lab grown diamonds |
| Total Carat Weight | approx. 5.14 ct (3.5 ct center + 1.64 ct side stones) |
| Setting | Bezel-set Three-Stone (elongated oval centre + half-moon sides) |
| Band Width | 2.5mm |
| Metal Options | 10K, 14K, 18K Solid Gold, Platinum Pure |
| Metal Colors | Yellow, Rose, White Gold |
| Ring Size | US 4–12 (half sizes included) |
| Certification | IGI® diamond grading report |
| Production | Handcrafted to order — 1–2 weeks |
| Included | Free insured worldwide shipping, lifetime warranty, 30-day returns |
Why Mohana
- Made to order, not pulled from inventory — every ring is handcrafted to your 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.
- IGI® certified — an independent grading report ships with the ring. Verify the specifications directly on the IGI 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 for sizing help or questions. We respond personally, not via bot.
About Lab Grown Diamonds
Lab grown diamonds are real diamonds — chemically, optically, and physically identical to mined diamonds, and graded by the same independent laboratories (IGI, GIA). The only meaningful difference is that they are grown in weeks rather than formed over billions of years.
Choosing lab grown means a larger, cleaner, more colorless stone for your budget, with a transparent origin and no mining footprint. This diamond is IGI certified — you can verify its grades directly on the IGI portal.
Explore the full colorless diamond collection.
Frequently Asked Questions
Are lab grown diamonds real diamonds?
Yes. Lab grown diamonds are 100% real diamonds — same crystal structure, same hardness (10 on the Mohs scale), same optical brilliance as mined diamonds. This centre stone is a colorless, VS1 clarity diamond, IGI certified.
What are the side stones?
Two half-moon-cut white diamonds — 1.64 ct in total — flank the oval centre, each set in its own bezel. Their flat edge sits neatly against the centre bezel for a smooth, continuous three-stone line.
What metals can I choose?
10K, 14K or 18K solid gold in yellow, white or rose, or platinum. The ring shown is 14K yellow gold.
Can this ring be resized?
Yes — complimentary resizing within the first year.
How much does this ring cost?
The Arabella starts at $3,330 in 10K solid gold, $3,540 in 14K, and $3,750 in 18K gold or platinum.
What's included with my ring?
The IGI® grading report, a signed Mohana certificate of authenticity, free worldwide insured shipping, a lifetime craftsmanship warranty, and a 30-day return window.
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.