4 Carat Fancy Blue Cushion & Pear Cut Three Stone Lab Grown Diamond Engagement Ring

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

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

Center Stone Type Selection: Lab Grown Diamonds

Diamond Cut: Cushion (Brilliant/Excellent Cut)

Center Stone Size: 3 Carat (8.5mm)

Side Stones: 2 Pear Cut Lab Diamonds, 0.50ct each (7.0x4.5mm)

Total Carat Weight: 4 CTW

Setting: Three Stone with Pear Cut Sides

Band Width: 2.8mm

Diamond Clarity: VS

Diamond Color: Fancy Blue

Certification: IGI® or GIA® Certified

A mesmerizing deep blue cushion that commands attention — a 3 carat vivid blue cushion cut lab grown diamond flanked by two perfectly matched 0.50ct pear cut side stones. The cushion cut concentrates the blue color into a deep, saturated pool of azure that shifts and dances as the ring moves. The pear-shaped side stones frame the blue center with icy white brilliance, creating a stunning contrast between depth and sparkle. At 4 CTW total, this is the kind of blue diamond ring that stops conversations and starts them again.

How This Ring Compares

Feature	This Ring	Brilliant Earth	Blue Nile	With Clarity
Center Stone	3ct Blue Cushion Lab Diamond	1–2ct Blue Cushion	1–1.5ct Blue Cushion	1–2ct Blue Cushion
Side Stones	2 × 0.50ct Pear Cut (1ct total)	2 × 0.25–0.40ct	2 × 0.25–0.35ct	2 × 0.30–0.50ct
Total Carat Weight	4 CTW	1.5–3 CTW	1.5–2.5 CTW	1.5–3 CTW
Certification	IGI® or GIA®	IGI	IGI/GIA	IGI/GIA
Metal	10K, 14K, 18K Gold + Platinum	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

• 4 CTW total with a 3 carat blue cushion center and two 0.50ct pear side stones — blue diamonds are the rarest fancy color, and the cushion cut concentrates that blue into a deep, saturated pool of color. Competitors typically cap blue cushion three-stones at 2–3 CTW
• Cushion cut is the best shape for showcasing blue — the cushion’s larger facets act as windows into the deep blue color, creating pools of saturated azure rather than scattered sparkle
• Blue cushion in white gold or platinum creates the ultimate cool, commanding aesthetic — the metal amplifies the blue diamond’s depth for a regal presence
• Lab-grown technology delivers the identical deep blue at a fraction of what mined blue diamonds cost — natural blue diamonds of this size would cost $50,000+
• 10K gold option — a budget-friendly entry point that competitors don’t offer
• Platinum Pure available — the ultimate in durability and hypoallergenic properties
• Handcrafted specifically for you — your metal, your size, your gold color
• Insurance included at no additional cost
• 30+ years of diamond manufacturing heritage behind every ring

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

Includes: Free worldwide shipping, insurance

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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