2 to 5 Carat Lab Grown Diamond Engagement Ring – Heart Cut Solitaire | Mellow
A lab grown diamond engagement ring, heart-cut and set in a solitaire design — available in 2 to 5 carat sizes (8.2x8.2mm to 11.2x11.2mm), handcrafted to order. The Mellow pairs the brilliance of a colorless lab grown diamond with the solitaire design, in your choice of solid gold or platinum.
Made to order in 1–2 weeks · 30-day returns · From $2,200 (2 ct, 10K) — up to $4,260 (5 ct, platinum)
| Center Stone | Lab Grown Diamond, Colorless (D-F), Heart, VVS (Best Only) Clarity, Excellent Cut — choose 2, 3, 4, or 5 ct |
| Center Stone Size | 2 ct — 8.2x8.2mm 3 ct — 9.4x9.4mm 4 ct — 10.4x10.4mm 5 ct — 11.2x11.2mm 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 |
Major retailers price colorless diamond engagement rings from $5,000 for a 1-carat round up to $20,000+ for 3 carat colorless premium grades. Mohana delivers IGI/GIA-certified lab grown diamonds at a fraction of that, handcrafted to your specifications, starting at $2,200 (2 ct, 10K) – $4,260 (5 ct, platinum).
| Feature | Mohana Jewels | Brilliant Earth | Blue Nile | James Allen |
|---|---|---|---|---|
| Center stone | 2–5ct Heart Colorless (D-F) VVS (Best Only) | 1–2ct Heart | 1–2ct Heart | 1–2ct Heart |
| 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 | $2200.0 | $5,000+ | $4,500+ | $4,200+ |
"White" diamonds — the classic colorless to near-colorless grades (D through J on the GIA scale) — are the most iconic and timeless choice for an engagement ring. They reflect light cleanly across the full visible spectrum, producing the brilliance and fire that defines a diamond. Lab grown technology delivers the same D-F colorless excellence as the most premium mined diamonds, at a fraction of the cost — making top-tier 2-ct, 3-ct, and 4-ct stones realistic for the modern proposal budget.
Mohana's white lab grown diamonds are chemically, optically, and physically identical to mined diamonds — graded by the same IGI and GIA laboratories using the same 4Cs scales (Carat, Clarity, Color, Cut). Every stone receives an independent grading report you can verify, and the optical performance — brilliance, fire, scintillation — is indistinguishable from a mined diamond of the same cut grade.
Colorless diamonds pair beautifully with white gold or platinum settings, where the cool metal complements the colorless stone for a uniform, classic look. For a warmer, vintage-inspired aesthetic, choose yellow or rose gold — the contrast frames the diamond and highlights its brilliance. Explore the full colorless diamond collection.
Yes. Lab grown diamonds are 100% real diamonds — same crystal structure, same hardness (10 on the Mohs scale), same optical brilliance and fire as mined diamonds. Every Mohana diamond is certified by IGI or GIA using the same 4Cs scales.
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.
Pricing varies by carat size and metal: 2 ct from $2,200 · 3 ct from $2,740 · 4 ct from $3,260 · 5 ct from $3,860 (10K solid gold; 14K, 18K, and platinum cost more). A mined diamond of comparable size and colorless grade would cost $8,000 to $40,000+.
The center stone is colorless (D-F on the GIA color scale) — the highest grade, with no detectable color even to a trained eye under ideal lighting. The 4Cs grading report is included with every order.
Yes — complimentary resizing within the first year. Full eternity bands are the exception due to their continuous diamond setting.
A classic solitaire features a single center diamond on a plain band — timeless, and it lets the diamond speak entirely for itself.
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.
Each ring is handcrafted to order in 1–2 weeks, then ships free worldwide with full insurance.
Yes — contact our team through customer support to request a custom variation in a different carat, shape, or metal combination.
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