A Beginner's Guide to Lab Diamond 4Cs

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You've probably seen a lot of symbols like "E VVS2 Id Ex Ex" while browsing for the designer piece to ask for her hand in marriage. But are you familiar with its meaning? If not, then this is the perfect guide for you! 💚

4 Important Questions That the 4Cs Answer

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Here is an example of an IGI Certificate. Let's break it down using this 1ct E VVS2 Id Ex Ex lab diamond as an example.

1. CARAT: How heavy and large is your brilliant jewel?

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We begin with something that most of us are familiar with. "1ct" or "1 carat" refers to a lab diamond's Carat Weight. The higher the number, the heavier and larger the stone gets. This means that a 2ct gem is heavier and larger than a 1ct piece.

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Miriam Lab Diamond Ring with a 1ct E VVS2 Id Ex Ex center

2. COLOR: How colorless is your center stone?

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"E" is a lab diamond's Color Grade. This refers to IGI's rating of the gem's color or lack thereof. Ranging from D to Z, D is the most colorless of all, while Z is the grade for colored diamonds. 

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Miriam Lab Diamond Ring with a 1ct E VVS2 Id Ex Ex center

3. CLARITY: How many inclusions are in your lab diamond?

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Meanwhile, "VVS2" refers to the Clarity Grade, measured by the amount of inclusions in a lab diamond jewel. The less amount and prominence they have, the higher the grade. Ranging from IF to I3, with Internally Flawless (IF) being the most clean and Included (I3) being one with the most blemishes.

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Miriam Lab Diamond Ring with a 1ct E VVS2 Id Ex Ex center

4. CUT: How precise and symmetrical is your gemstone?

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Finally, "Id" or Ideal refers to a lab diamond's Cut Rating. Ideal is the highest possible rating, only given to Round Cut lab diamonds. Excellent comes right after, which is the highest rating for Fancy Cut lab diamonds. The least ideal cut is rated as Fair, which refers to a dull and dark jewel.

Aside from its Cut, a lab diamond's Polish and Symmetry is also rated up to Excellent. This results in an Ex Ex or Double Excellent grade.

This is arguably the most important aspect of all four because it has the most effect on your forever piece's brilliance. A too shallow, too deep, or assymmetrical cut will produce a dull gemstone that looks dark and lackluster.

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Miriam Lab Diamond Ring with a 1ct E VVS2 Id Ex Ex center

Our Commitment to Quality

Lucce’s Premium Lab-Grown Diamonds is an assortment of the finest IGI-Certified Lab Diamonds with the best light performance at the optimal carat weights. Our designer pieces are only available with lab diamonds in G or higher color grades, a minimum clarity of VS1, and an Excellent to Ideal Cut.

💎 Color: G or better
💎 Clarity: VS1 or better
💎 Cut: Excellent to Ideal

 

Explore our Lab Diamond forever pieces to represent your unending love like no other. 

Round Cut Engagement Rings

Fancy Cut Engagement Rings

VOGUE-Approved Engagement Rings