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Oval|Lab Grown|IGI

1.51ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG496101599

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG496101599

Diamond specifications and retailer prices

From $1,050 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $1,050 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 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496101599 or 496101599. 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

1.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496101599
Dimensions9.28 × 6.43 × 3.96 mm
L/W Ratio1.44
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
9.28 mm6.43 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496101599
Side View
Table 58.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 29
Current: $1,050 USD|Low: $1,050 USD|High: $5,211 USD|Avg: $2,995 USD|-52.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
June 13, 2026
Brilliant Earth$1,050 USD
Retailer 2$1,304 USD
Retailer 8$2,009 USD
Retailer 4$2,430 USD
Retailer 5$2,799 USD
Retailer 3$3,275 USD
Retailer 7$3,339 USD
Retailer 6$5,164 USD

36 data points across 8 retailers

1 retailer

B+
Brilliant Earth
8532303A · Oct 29
$1,050 USD
View

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

B+
1.51ct Oval
$1,050 USD