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Oval|Lab Grown|IGI

1.30ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG526275274

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG526275274

Diamond specifications and retailer prices

From $990 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $990 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 1.3ct lab-grown oval diamond

This 1.3ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526275274 or 526275274. Listed at a single retailer as of October 29, 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

1.30
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526275274
Dimensions8.85 × 6.15 × 3.82 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.85 mm6.15 mm1.30 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526275274
Side View
Table 62.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $990 USD|Low: $597 USD|High: $990 USD|Avg: $815 USD
Brilliant Earth
Retailer 2
December 30, 2025
Retailer 2$597 USD
Brilliant Earth$990 USD

5 data points across 2 retailers

1 retailer

B
Brilliant Earth
13226504A · Oct 29
$990 USD
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B
1.30ct Oval
$990 USD