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Round|Lab Grown|IGI

1.51ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG792697758

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792697758

Diamond specifications and retailer prices

From $191 USD
As of November 5, 2026
Save $914 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,105 USD at MOH London · As of November 5, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG792697758 or 792697758. Listed at 19 retailers as of November 5, 2026, with prices from $191 to $1,105, a $914 spread on the same certified stone. MOH London lists it at $1,105. 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
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792697758
Dimensions7.43 × 7.38 × 4.51 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
7.43 mm7.38 mm1.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792697758
Side View
Table 56.0%Crown 32°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
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: Nov 5
Current: $1,105 USD|Low: $187 USD|High: $1,143 USD|Avg: $512 USD|-3.1%
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
November 6, 2026
Retailer 6$191 USD
Retailer 16$213 USD
Retailer 15$222 USD
Retailer 11$237 USD
Retailer 7$238 USD
Retailer 3$415 USD
Retailer 8$420 USD
Retailer 2$425 USD
Retailer 13$518 USD
Retailer 14$570 USD
Retailer 9$628 USD
Retailer 10$710 USD
Retailer 12$761 USD
Retailer 4$773 USD
Retailer 5$815 USD
MOH London$1,105 USD

34 data points across 16 retailers

19 retailers$191 USD to $1,105 USD

Retailer 1
-
$190 USD
Price last confirmed 49 days ago
A
Retailer 2
-
$191 USD
View
A
Retailer 3
-
$213 USD
View
Final sale: no returns
A
Retailer 4
-
$222 USD
View
Retailer 5
-
$232 USD
View
Price last confirmed 48 days ago
A
Retailer 6
-
$237 USD
View
Retailer 7
-
$238 USD
View
Price last confirmed 12 days ago
B+
Retailer 8
-
$415 USD
View
A
Retailer 9
-
$420 USD
View
A
Retailer 10
-
$425 USD
View
B+
Retailer 11
-
$518 USD
View
B+
Retailer 12
-
$570 USD
View
B+
Retailer 13
-
$628 USD
View
B+
Retailer 14
-
$710 USD
View
Retailer 15
-
$757 USD
View
Price last confirmed 46 days ago
B+
Retailer 16
-
$761 USD
View
B+
Retailer 17
-
$773 USD
View
B+
Retailer 18
-
$815 USD
View
Most Expensive
B
MOH London
LG792697758 · Nov 5
$1,105 USD
£870 GBP
View
18 more retailers have this diamond
Prices start from $191 USDSave up to $914 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
$191 USD