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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG794610644

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794610644

Diamond specifications and retailer prices

From $196 USD
As of October 29, 2026
Save $951 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,147 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round 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 LG794610644 or 794610644. Listed at 19 retailers as of October 29, 2026, with prices from $196 to $1,147, a $951 spread on the same certified stone. MOH London lists it at $1,147. 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°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794610644
Dimensions7.44 × 7.38 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.44 mm7.38 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794610644
Side View
Table 57.0%Crown 34°Girdle: MediumPavilion 40.2°Culet: NoneDepth 60.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,147 USD|Low: $191 USD|High: $1,167 USD|Avg: $561 USD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 3$196 USD
Retailer 12$218 USD
Retailer 11$227 USD
Retailer 5$244 USD
Retailer 7$244 USD
Retailer 13$422 USD
Retailer 15$442 USD
Retailer 6$454 USD
Retailer 10$575 USD
Retailer 9$628 USD
Retailer 4$715 USD
Retailer 2$780 USD
Retailer 14$790 USD
Retailer 16$833 USD
Retailer 8$860 USD
MOH London$1,147 USD

35 data points across 16 retailers

19 retailers$196 USD to $1,147 USD

Retailer 1
-
$196 USD
Price last confirmed 42 days ago
A
Retailer 2
-
$196 USD
View
A
Retailer 3
-
$218 USD
View
Final sale: no returns
A
Retailer 4
-
$227 USD
View
Retailer 5
-
$238 USD
View
Price last confirmed 41 days ago
A
Retailer 6
-
$244 USD
View
A
Retailer 7
-
$244 USD
View
B+
Retailer 8
-
$422 USD
View
A
Retailer 9
-
$442 USD
£348 GBP
View
A
Retailer 10
-
$454 USD
View
B+
Retailer 11
-
$575 USD
View
B+
Retailer 12
-
$628 USD
View
B+
Retailer 13
-
$715 USD
View
Retailer 14
-
$775 USD
View
Price last confirmed 39 days ago
B+
Retailer 15
-
$780 USD
View
B+
Retailer 16
-
$790 USD
SGD 1,068 SGD
View
B+
Retailer 17
-
$833 USD
View
B
Retailer 18
-
$860 USD
View
Most Expensive
B
MOH London
LG794610644 · Oct 29
$1,147 USD
£903 GBP
View
18 more retailers have this diamond
Prices start from $196 USDSave up to $951 USD

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.

A
1.51ct Round
$196 USD