2.5 Carat Blue Oval Cut Lab Grown Diamond Hidden Halo & Pavé Engagement Ring

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 (Excellent Cut)

Center Stone Size: 2.5 Carat (11x7mm)

Accent Stones: 42 Round Brilliant Diamonds (16 × 1.5mm + 26 × 1.0mm)

Setting: Hidden Halo with Pavé Band

Diamond Clarity: VS

Diamond Color: Fancy Vivid Blue

Certification: IGI® or GIA® Certified

The rarest diamond color in the most flattering shape — a 2.5 carat vivid blue oval lab grown diamond set in a hidden halo with 42 round brilliant accent diamonds along the band and beneath the center stone. The oval stretches the vivid blue color across an elongated 11x7mm surface — creating a wide, dramatic sweep of blue across the finger that no round or cushion can match. Blue is the rarest fancy diamond color, and the oval makes every fraction of a carat count by appearing up to 15% larger face-up than a round of the same weight. The hidden halo adds a secret ring of diamonds beneath the blue center stone, amplifying sparkle from every side angle without adding bulk from above. 42 accent diamonds create an unbroken cascade of fire from the hidden halo through the full pavé band. Set in white gold for a cool-toned, dramatic masterpiece — icy blue center, white diamond accents, 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	2.5ct Blue Oval Lab Diamond	1–1.5ct Blue Oval	1ct Blue Oval	1–1.5ct Blue Oval
Accent Stones	42 Diamonds (Hidden Halo + Pavé)	20–30 Diamonds	18–26 Diamonds	16–24 Diamonds
Hidden Halo	✓ Included	Select styles only	Select styles only	Select styles only
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

• 2.5 carat vivid blue oval with hidden halo — the oval stretches the rarest fancy diamond color across an elongated 11x7mm surface, creating a wide, dramatic sweep of blue across the finger that round and cushion cuts cannot achieve
• 42 accent diamonds — significantly more than competitors (typically 16–30), creating a continuous cascade of white fire from the hidden halo through the full pavé band that frames the blue center in brilliant contrast
• Oval appears up to 15% larger face-up than a round — this 2.5 carat blue oval visually competes with a 3 carat blue round, maximizing the visual impact of the rarest diamond color
• Blue oval in white gold creates a cool-toned masterpiece — icy blue center diamond, white diamond accents, and sleek white gold metal create the most sophisticated and dramatic blue diamond presentation available
• Lab-grown makes 2.5ct vivid blue accessible — a natural mined 2.5 carat vivid blue would cost hundreds of thousands of dollars. Same chemical composition, same hardness (10 Mohs), same brilliance at a fraction of the price
• Hidden halo amplifies the blue center stone from below without adding bulk — clean solitaire look from above, secret sparkle from every side angle
• 10K gold option — the most accessible entry into a certified 2.5 carat 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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