3 to 5 Carat Blue Lab Grown Diamond Engagement Ring · Cushion Cut Bezel Set | Reverie
3 Carat / 10K Solid Gold / Yellow Gold
$3,840.00
Sale price
$3,840.00
Regular price
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3 to 5 Carat Blue Lab Grown Diamond Engagement Ring · Cushion Cut Bezel Set | Reverie
$3,840.00
Sale price
$3,840.00
Regular price
A cushion-cut fancy blue lab grown diamond engagement ring, available in 3, 4, or 5 carat — set as a bezel-and-prong solitaire. The Reverie frames the cushion's pillowy silhouette in a low-profile metal bezel reinforced by four discreet prongs, in your choice of solid gold or platinum. A modern, secure take on the classic solitaire.
- Three carat options — 3 ct (8.5x8.5mm), 4 ct (9.5x9.5mm), or 5 ct (10.5x10.5mm) fancy blue lab grown diamond
- Cushion cut — rounded square outline with deep brilliant faceting, the pillow-shape classic
- Bezel with prong setting — a thin metal rim hugs the stone's girdle, with four discreet prongs cradling it from above for extra security
- Solitaire — no accent stones; the cushion does all the work
- Band width: 2.5mm — slim profile that lets the center stand alone
- 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 $3840.00
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Full Specifications
| Specification | Detail |
|---|---|
| Center Stone | Lab Grown Diamond, Fancy Blue, Cushion, VS Clarity, Excellent Cut — choose 3, 4, or 5 ct |
| Center Stone Size | 3 ct — 8.5x8.5mm 4 ct — 9.5x9.5mm 5 ct — 10.5x10.5mm Diamond size guide |
| Setting | Bezel-and-Prong Solitaire (bezel rim + four prongs) |
| Total Carat Weight | 3–5 ct (center only) |
| Band Width | 2.5mm |
| 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 Blue Lab Grown Diamonds
Blue diamonds are among the most coveted natural gems in history. The 45.52-carat Hope Diamond (Smithsonian, ~$200–250M estimated value), the 14.62-carat Oppenheimer Blue (sold for $57.5M, then the most expensive diamond per carat ever auctioned), and the Wittelsbach-Graff Blue are among the most legendary. Natural fancy blue diamonds typically sell for hundreds of thousands per carat. Lab grown technology now makes blue diamonds accessible without that premium.
Mohana's blue lab grown diamonds are chemically, optically, and physically identical to mined blue diamonds — graded by the same IGI and GIA laboratories. The blue color comes from trace boron in the carbon lattice (the same mechanism as in natural blue diamonds, including the Hope), is part of the diamond's atomic structure, and will never fade.
Blue diamonds pair beautifully with white gold and platinum (cool-on-cool) or with yellow gold for a striking warm/cool contrast. Explore the full blue diamond collection.
Frequently Asked Questions
Are blue lab grown diamonds real diamonds?
Yes. Lab grown blue diamonds are 100% real diamonds — same crystal structure, same hardness (10 on the Mohs scale), same optical brilliance as mined blue diamonds. Every Mohana blue diamond is certified by IGI or GIA.
What is a bezel-and-prong setting?
A bezel-and-prong setting wraps the diamond's girdle (its widest edge) in a continuous thin band of metal, then adds a small number of prongs above to lock the stone in place. The bezel protects the most chip-prone edge of the diamond, while the prongs keep the crown open and visible from the top. It's the most secure solitaire mount for daily-wear engagement rings — especially well-suited to active lifestyles.
What carat options are available?
The Reverie comes in three center stone sizes: 3 carat (8.5x8.5mm), 4 carat (9.5x9.5mm), and 5 carat (10.5x10.5mm). Choose your carat at the top of this page; the price updates per option.
Are there any side stones?
No. The Reverie is a pure solitaire — one stone, no accent diamonds. All the attention is on the cushion center.
What is the band width of this ring?
The band measures 2.5mm wide — slim enough to elongate the finger and let the cushion center stand out. The band width is consistent across all metal and carat options.
How much does this blue lab grown diamond engagement ring cost?
Pricing scales with the carat you choose. Starting prices in 10K solid gold:
- 3 ct — starts at $3840.00 (10K solid gold)
- 4 ct — starts at $4880.00 (10K solid gold)
- 5 ct — starts at $5985.00 (10K solid gold)
14K, 18K, and platinum add roughly $200 per tier. A natural mined blue cushion of comparable quality would cost $50,000+ to $800,000+.
Can this ring be resized?
Yes — complimentary resizing within the first year.
Why a bezel setting for a cushion?
The cushion's rounded square outline pairs naturally with the rounded bezel rim — the geometry echoes itself. The bezel also protects the cushion's softly-curved corners, which are slightly more vulnerable than the straight edges of a princess or emerald cut.
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 for a custom variation in a different carat, shape, or metal combination.
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