3 Carat Blue Emerald-Cut Lab Diamond Solitaire Engagement Ring | 4-Prong

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: Emerald (Step Cut | Excellent Cut)

Center Stone Size: 3 Carat (10x7mm)

Setting: Classic 4-Prong Solitaire

Band Width: 3.5mm Flat Band

Diamond Clarity: VS

Diamond Color: Fancy Blue

Certification: IGI® or GIA® Certified

Deep ocean brilliance in a striking emerald silhouette — this 3 carat fancy blue lab diamond delivers bold, vivid color through clean step-cut facets that maximize saturation and depth. The classic 4-prong solitaire setting and slim 3.5mm band let the stone's electric blue hue command every glance. Crafted in your choice of 10K, 14K, or 18K solid gold with IGI® or GIA® certification.

How This Ring Compares

Feature	This Ring	Brilliant Earth	Blue Nile	With Clarity
Center Stone	3ct Blue Emerald-Cut Lab Diamond	1–2ct Blue Emerald	1–1.5ct Blue Emerald	1–2ct Blue Emerald
Setting	Classic 4-Prong Solitaire	Various settings	Various settings	Various settings
Band Width	3.5mm Flat Band	Varies	Varies	Varies
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 blue emerald-cut with classic solitaire — the emerald cut's step facets create deep, still pools of vivid blue that draw the eye like looking into ocean depths. Competitors typically cap blue emerald cuts at 1–2 carats at this price point
• Emerald cut showcases blue depth — the long, open facets act like windows into the stone's color, making the blue appear deeper and more saturated than brilliant cuts
• Blue emerald in white gold creates a cool, commanding presence — the metal amplifies the blue diamond's depth for a look that feels both modern and regal
• Blue diamonds are the rarest fancy color — lab-grown technology delivers the identical deep blue at a fraction of what mined blue diamonds would cost
• Three metal karat options including 10K — a budget-friendly entry point that competitors don't offer
• Handcrafted specifically for you — your metal, your size, your gold color. Not pulled from inventory
• Free worldwide shipping — competitors charge for international delivery or don't ship globally
• Insurance included at no additional cost — competitors charge $100–$200+ annually

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

Includes: Free worldwide shipping, insurance, IGI®/GIA® certificate

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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