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Oval|Lab Grown|IGI

1.25ct E SI1 Oval Lab Grown Diamond

EX • E/SI1 • IGI LG770607250

Certificate IGI LG770607250

Diamond specifications and retailer prices

From $900 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $900 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 1.25ct lab-grown oval diamond

This 1.25ct 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 LG770607250 or 770607250. 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

1.25
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770607250
Dimensions8.46 × 6.15 × 3.81 mm
L/W Ratio1.38
Culet sizeNone
Top View
8.46 mm6.15 mm1.25 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770607250
Side View
Table 59.0%Crown 34.2°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 62.0%

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: $900 USD|Low: $228 USD|High: $900 USD|Avg: $455 USD
Brilliant Earth
Retailer 2
Retailer 3
April 14, 2026
Retailer 2$228 USD
Retailer 3$457 USD
Brilliant Earth$900 USD

4 data points across 3 retailers

1 retailer

B
Brilliant Earth
17530707A · Oct 29
$900 USD
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B
1.25ct Oval
$900 USD