3 Carat Blue Oval Lab Grown Diamond Engagement Ring Three Stone Heart Cut

Material Selection: 10K, 14K, 18K Solid Gold

Metal Color Selection: Rose Gold, Yellow Gold, White Gold

Center Stone Type Selection: Lab Grown Diamonds

Diamond Cut: Oval Brilliant Center + Heart Brilliant Side Stones

Center Stone Size: 3 Carat Blue Oval (12x8mm)

Side Stones: 2 Heart Cut Diamonds (5x5mm each, 0.50ct each, 1.0ct total)

Total Carat Weight: 4.0 Carats

Setting: Three-Stone (Oval + Heart + Heart)

Band Width: 2.5mm

Diamond Clarity: VS

Diamond Color: Fancy Vivid Blue

Certification: IGI® or GIA® Certified

The rarest color, held by love — a 3 carat vivid blue oval lab grown diamond flanked by two heart cut diamond side stones totaling 4 carats across all three stones. Blue is the rarest and most valuable fancy diamond color, and the oval stretches it across a dramatic 12x8mm surface — creating a wide, mesmerizing sweep of deep blue across the finger like a piece of the ocean caught in gold. The two 0.50 carat heart diamonds nestle against each side, their bright white sparkle creating a stunning contrast against the vivid blue center — like stars framing a midnight sky. A 3 carat natural vivid blue oval diamond would cost hundreds of thousands of dollars. Lab-grown technology delivers the identical chemical composition, hardness (10 Mohs), and brilliance at a fraction of the price. Set in white gold for a cool-toned masterpiece — icy blue oval, sparkling white hearts, and sleek silver-white metal creating a ring that commands attention from across any room.

How This Ring Compares

Feature	This Ring	Brilliant Earth	Blue Nile	With Clarity
Center Stone	3ct Blue Oval Lab Diamond	1–1.5ct Blue Oval	1ct Blue Oval	1–1.5ct Blue Oval
Side Stones	2 Heart Cut (0.50ct each)	Pear or Round sides	Pear or Baguette sides	Pear or Round sides
Total Carat Weight	4.0ct (3ct + 1ct sides)	Varies (typically 0.3–0.6ct sides)	Varies (typically 0.3–0.6ct sides)	Varies (typically 0.3–0.6ct sides)
Certification	IGI® or GIA®	IGI	IGI/GIA	IGI/GIA
Metal	10K, 14K, 18K Solid Gold	14K, 18K	14K, 18K	14K, 18K
Made to Order	✓ Handcrafted for you	✗ Pre-made inventory	✗ Pre-made inventory	✗ Pre-made inventory
Price Range	Fraction of competitors	$4,000–$8,000	$3,000–$6,000	$2,000–$4,000
Free Worldwide Shipping	✓	✓ US only free	✓ US only free	✓ US only free
Insurance Included	✓	✗ Separate purchase	✗ Separate purchase	✗ Separate purchase

What You Get That They Don’t Offer

• 3 carat vivid blue oval + heart side stones — the rarest fancy diamond color in a three-stone design with romantic heart sides. No competitor offers this combination. Blue oval center with white hearts creates a striking contrast like stars framing a midnight sky
• 3 carat blue oval center — competitors typically cap blue lab diamond options at 1–1.5 carats. This 3 carat center stretches vivid blue across a dramatic 12x8mm surface, creating a visual impact that smaller blue diamonds cannot achieve
• 4.0 total carats — the blue oval center plus two 0.50 carat heart sides deliver a total carat weight that far exceeds typical competitor three-stone offerings
• Lab-grown makes a 3ct vivid blue oval accessible — a natural mined equivalent would cost hundreds of thousands of dollars. Same chemical composition, same 10 Mohs hardness, same brilliance at a fraction of the price
• Blue oval in white gold = cool-toned drama — vivid blue center, bright white heart sides, and sleek white gold metal create the most sophisticated blue diamond presentation available in a three-stone format
• Oval appears up to 15% larger face-up than a round — maximizing the visual impact of the rarest diamond color across the widest possible surface area
• 10K gold option — the most accessible entry into a certified 4 carat total weight blue diamond engagement ring. No competitor offers 10K
• Handcrafted to order — your exact ring size, metal karat, and gold color
• Free worldwide shipping and insurance included — competitors charge extra for both
• 30+ years of diamond manufacturing heritage behind every ring

Production: Made to order, 1–2 weeks processing time

Includes: Free worldwide shipping, insurance, IGI® or GIA® certification

Approximately 1-2 weeks from order date

As we create each piece to order (unless specified otherwise in the item description), please allow 1-2 weeks for production time. Please see the Worldwide Shipping tab for delivery timelines and details.

Order Prioritization

If you’re looking for a shorter turnaround, please contact us prior to ordering so we can confirm if this is feasible.

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