Oval Fancy Intense Blue Lab-Grown Diamond Criss-Cross Engagement Ring

SKU: LG-CDIA-R-009 Categories: ,

Original price was: $3,649.00.Current price is: $3,284.00.10% OFF

5.0 (5 Reviews)

An ocean-blue diamond rises through sculpted white-gold curves, bringing a rare sense of confidence to proposals, milestone evenings, and personal celebrations meant to feel unmistakably your own.

Total Carat Weight
1.85 ct t.w.
Metal Type
14K White Gold

LumGem Fit Guide

Find Your Ring Size

Measure at the end of the day, when fingers are naturally at their largest. Use a non-stretch strip and keep it comfortably snug.

Measure Your Finger

A paper strip wrapped around a finger and marked at the overlap

Wrap a narrow strip of paper around the base of your finger. Mark exactly where the ends meet.

The marked paper strip measured flat against a metric ruler

Lay the strip flat and measure from the end to your mark in millimeters. Match that circumference below.

US Ring Size Chart

Finger circumference
US SizemmUS Sizemm
344.2 959.5
3.545.5 9.560.8
446.8 1062.1
4.548.0 10.563.4
549.3 1164.6
5.550.6 11.565.9
651.9 1267.2
6.553.1 12.568.5
754.4 1369.7
7.555.7 13.571.0
857.0 1472.3
8.558.3

Between sizes? Choose the larger size. Temperature and time of day can affect fit, so measure twice for confidence.
Certified Gemstone
30-Day Return
Lifetime Warranty
Ethical & Sustainable
Standard Shipping FREE $119+

Order within 02:00:00

Estimated Delivery: 5–14 Days Estimated delivery: 5–14 calendar days. In-stock pieces are typically handed to our shipping partner within 24 hours. Pieces made to your selected size or length may require approximately 6 calendar days to craft before shipment.

Earn 3,284 LumGem Points with this purchase
Product Reviews Recommended
Crafted for meaningful moments

About This Piece

Lab-Grown Fancy Intense Blue Diamond in 14K White Gold; 9x7mm oval center; 9mm face; 5.10mm setting height; Ring Sizes 3-14; Total Carat Weight: 1.875 ct.

SKU
LG-CDIA-R-009
Metal
14K White Gold
Setting / Style
Prong / Side Stone
Certificate of Authenticity

About the Product

DIAMOND INFORMATION 1

No. of Oval Lab-Grown Fancy Intense Blue Diamond
1
Origin
lab-grown
Approximate Dimensions
9x7mm
Approximate Total Carat Weight
1.75
Quality Grade
Fancy Intense, VS
Setting Type
Prong

DIAMOND INFORMATION 2

No. of Round Lab-Grown Diamond
8
Origin
lab-grown
Approximate Total Carat Weight
0.10
Quality Grade
F-G, VS
Setting Type
Prong
Gifting
LumGem gift-ready jewelry packaging
The LumGem Gift Experience Gift-ready, at no extra cost

Your LumGem jewelry arrives carefully presented in our complimentary gift-ready packaging, ready to present as a gift or keep as something special for yourself.

What Does Lab-Grown Mean?
The same beauty, created differently

LumGem lab-grown gemstones are created using advanced technology that recreates the conditions in which gemstone crystals form. They have the same essential chemical composition, crystal structure and optical properties as their natural counterparts—bringing vivid color and brilliance at a more approachable price. Just like natural stones, lab-grown diamonds and gemstones can also be submitted to independent labs such as GIA or IGI for identification or grading.

Real Pieces. Real Moments.

Customer Reviews

See how LumGem jewelry shines in the moments that matter.

Customer Reviews

5.0
Based on 5 reviews Verified Buyer

Write a Review

Ask A Question

Ask about this piece. Our jewelry team will review and answer your question.

Your email will not be published.

5 reviews for Oval Fancy Intense Blue Lab-Grown Diamond Criss-Cross Engagement Ring

  1. Marina S.Verified Buyer

    More petite than the picture shows but I love it

    Purchased: Oval Ring

  2. Ronald R.Verified Buyer

    Won’t know for a few months when I give it for our 50th anniversary.

    Purchased: Oval Ring

  3. Dean B.Verified Buyer

    The ring was perfect and shipping was extremely fast!

    Purchased: Oval Ring

  4. Jeremiah G.Verified Buyer

    The ring is exactly what I ordered and she loves it!

    Purchased: Oval Ring

  5. Ben M.Verified Buyer

    Exactly what we were looking for. Authentic and beautiful.

    Purchased: Oval Ring

Write a Review

Image (optional)
Up to 5 JPG, PNG or WebP images, 5MB each.

Lab-grown gemstones are chemically, physically, and optically identical to mined gemstones — grown in controlled environments that replicate the conditions under which gems form naturally, just without digging them out of the earth. To the eye, and to any gemologist, they're the real thing.
Yes. Because lab-grown gemstones share the same crystal structure and hardness as their mined counterparts, they wear, sparkle, and hold up exactly the same way over daily wear.
Growing a gemstone in a controlled environment is more efficient than mining one from the earth, and we sell directly to you rather than through multiple middlemen — savings we pass straight on to you, without cutting corners on quality.
If something isn't right, our 30-Day Return policy gives you time to make sure your piece is the one.
It has the same beauty and chemical composition, with a modern creation process.

You May Also Like

Thoughtfully selected to complement this piece.

Round Fancy Intense Pink Lab-Grown Diamond Solitaire V-Bale Pendant main Round Fancy Intense Pink Lab-Grown Diamond Solitaire V-Bale Pendant Original price was: $2,499.00.Current price is: $2,249.00. Round Fancy Intense Blue Lab-Grown Diamond Solitaire V-Bale Pendant main Round Fancy Intense Blue Lab-Grown Diamond Solitaire V-Bale Pendant Original price was: $2,099.00.Current price is: $1,889.00. Classic Round Fancy Intense Pink Lab-Grown Diamond Solitaire Pendant main Classic Round Fancy Intense Pink Lab-Grown Diamond Solitaire Pendant Original price was: $2,179.00.Current price is: $1,961.00. Emerald-Cut Lab-Grown Pink Diamond Halo Ring main Emerald-Cut Lab-Grown Pink Diamond Halo Ring Original price was: $1,559.00.Current price is: $1,403.00. Emerald-Cut Fancy Intense Yellow Lab-Grown Diamond Bolo Bracelet main Emerald-Cut Fancy Intense Yellow Lab-Grown Diamond Bolo Bracelet Original price was: $2,039.00.Current price is: $1,835.00. Princess Diana-Inspired Lab-Grown Fancy Intense Blue Diamond Halo Ring main Princess Diana-Inspired Lab-Grown Fancy Intense Blue Diamond Halo Ring Original price was: $4,119.00.Current price is: $3,707.00. Oval Fancy Intense Pink Lab-Grown Diamond Split-Shank Engagement Ring main Oval Fancy Intense Pink Lab-Grown Diamond Split-Shank Engagement Ring Original price was: $2,499.00.Current price is: $2,249.00. Classic Round Fancy Intense Yellow Lab-Grown Diamond Solitaire Pendant main Classic Round Fancy Intense Yellow Lab-Grown Diamond Solitaire Pendant Original price was: $1,989.00.Current price is: $1,790.00.