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1.35ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG594342480

Shape and cutting style on the report: Round brilliant

Certificate IGI LG594342480

Diamond specifications and retailer prices

From $880 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: $880 USD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.35ct lab-grown round diamond

This 1.35ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG594342480 or 594342480. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.35
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG594342480
Dimensions7.04 × 7.10 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.04 mm7.10 mm1.35 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG594342480
Side View
Table 58.0%Crown 35.1°Girdle: Med.Pavilion 40.8°Culet: NoneDepth 61.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 2
Current: $880 USD|Low: $458 USD|High: $880 USD|Avg: $753 USD
Brilliant Earth
Retailer 2
Retailer 3
December 31, 2025
Retailer 2$458 USD
Retailer 3$659 USD
Brilliant Earth$880 USD

6 data points across 3 retailers

1 retailer

B
Brilliant Earth
7936740Y · Nov 2
$880 USD
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B
1.35ct Round
$880 USD