A fancy blue lab grown diamond engagement ring, asscher-cut and set in a solitaire design — available in 2 to 5 carat sizes (7x7mm to 9.5x9.5mm), handcrafted to order. The Fabriciana pairs the rarity of a blue diamond with the solitaire design, in your choice of solid gold or platinum.
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Blue center diamond — Fancy Blue lab grown, VS (Best Only) clarity (choose 2, 3, 4, or 5 ct)
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Asscher cut for an Art Deco silhouette with windmill-pattern brilliance
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Shank width: 3.0mm — substantial band, well-proportioned across 2–5 ct options
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IGI® or GIA® certified — independent grading report included
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Your choice of metal: 10K, 14K, 18K solid gold or platinum
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Free worldwide insured shipping + lifetime warranty
Made to order in 1–2 weeks · 30-day returns · From $2,350 (2 ct, 10K) — up to $4,970 (5 ct, platinum)
Full Specifications
| Center Stone |
Lab Grown Diamond, Fancy Blue, Asscher, VS (Best Only) Clarity, Excellent Cut — choose 2, 3, 4, or 5 ct |
| Center Stone Size |
2 ct — 7x7mm
3 ct — 8x8mm
4 ct — 8.7x8.7mm
5 ct — 9.5x9.5mm
Diamond size guide
|
| Setting |
Solitaire |
| Total Carat Weight |
2–5 ct center (accent carat varies by configuration) |
| Shank Width |
3.0mm |
| 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 |
How Mohana Compares
Major retailers rarely stock natural blue diamond engagement rings, and when they do, prices start at $10,000–$30,000+ due to the extreme rarity of blue diamonds in nature. Mohana delivers IGI/GIA-certified lab grown blue diamonds at a fraction of that, handcrafted to your specifications, starting at $2,350 (2 ct, 10K) – $4,970 (5 ct, platinum).
| Feature |
Mohana Jewels |
Brilliant Earth |
Blue Nile |
James Allen |
| Blue diamond options |
Available in blue, pink, yellow, green |
Mostly white only |
White only |
White only |
| Center stone |
2–5ct Asscher Fancy Blue VS (Best Only) |
1–2ct Asscher |
1–2ct Asscher |
1–2ct Asscher |
| Setting style |
Solitaire |
Standard Solitaire |
Standard Solitaire |
Standard Solitaire |
| Total carat weight |
2 ct |
1.5–2.5 ct |
1.5–2.5 ct |
1.5–2.5 ct |
| Shank width |
3.0mm |
Not stated |
Not stated |
Not stated |
| Metal options |
10K / 14K / 18K + Platinum |
14K / 18K |
14K / 18K |
14K / 18K + Platinum |
| Made to order |
Yes — handcrafted |
Pre-made inventory |
Pre-made inventory |
Limited custom |
| Insurance on shipping |
Included free |
Separate purchase |
Separate purchase |
Separate purchase |
| Starting price |
$2350.0 |
$10,000+ |
$9,000+ |
$8,500+ |
About Blue Lab Grown Diamonds
Fancy blue diamonds are among the rarest colored diamonds on earth — the Hope Diamond, the Cullinan Blue, and the Oppenheimer Blue have all set auction records at $30M–$50M+ apiece. Natural blue diamonds owe their color to trace boron in the crystal lattice, and only a tiny fraction of mined diamonds show true blue saturation. Lab grown technology makes the romance of a true blue diamond accessible without the financial or ethical burden.
Mohana's blue lab grown diamonds are chemically, optically, and physically identical to mined blue diamonds — graded by the same IGI and GIA laboratories using the same scales. The boron-tinted color is part of the diamond's atomic structure, not a surface treatment, and will not fade.
Blue diamonds pair most beautifully with white gold or platinum settings, which amplify the cool blue tone. For warm contrast, choose yellow gold. 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 the shank width of this ring?
The shank (the band around your finger) measures 3.0mm wide. At 3.0mm the band is well-proportioned across all 2–5 ct center stone options — slim enough to wear daily while still supporting the solitaire design at the largest size. The shank width is consistent across all metal options.
How much does this fancy blue lab grown diamond engagement ring cost?
Pricing varies by carat size and metal: 2 ct from $2,350 · 3 ct from $3,300 · 4 ct from $3,750 · 5 ct from $4,570 (10K solid gold; 14K, 18K, and platinum cost more). A natural mined fancy vivid blue diamond of comparable size would cost $30,000 to $200,000+.
Will the blue color fade over time?
No. The boron-tinted color in a lab grown blue diamond is part of the diamond's atomic structure, 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 solitaire setting?
A classic solitaire features a single center diamond on a plain band — timeless, and it lets the diamond speak entirely for itself.
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.
