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Round|Lab Grown|IGI

1.50ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG783615018

Shape and cutting style on the report: Round brilliant

Certificate IGI LG783615018

Diamond specifications and retailer prices

From $191 USD
As of November 1, 2026
Save $929 USD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,120 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct 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 LG783615018 or 783615018. Listed at 17 retailers as of October 29, 2026, with prices from $191 to $1,120, a $929 spread on the same certified stone. MOH London lists it at $1,120. 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

1.50
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783615018
Dimensions7.38 × 7.34 × 4.49 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
7.38 mm7.34 mm1.50 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783615018
Side View
Table 61.0%Crown 34°Girdle: MediumPavilion 41.4°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 1
Current: $1,120 USD|Low: $191 USD|High: $1,144 USD|Avg: $508 USD|-2.1%
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
November 2, 2026
Retailer 6$191 USD
Retailer 15$213 USD
Retailer 14$222 USD
Retailer 10$237 USD
Retailer 7$238 USD
Retailer 3$415 USD
Retailer 8$422 USD
Retailer 9$430 USD
Retailer 12$447 USD
Retailer 13$569 USD
Retailer 2$616 USD
Retailer 11$762 USD
Retailer 4$773 USD
Retailer 5$815 USD
MOH London$1,120 USD

26 data points across 15 retailers

17 retailers$191 USD to $1,120 USD

A
Cheapest Retailer
-
$191 USD
A
Retailer 2
-
$213 USD
View
Final sale: no returns
A
Retailer 3
-
$222 USD
View
A
Retailer 4
-
$237 USD
View
Retailer 5
-
$238 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$415 USD
View
A
Retailer 7
-
$422 USD
£332 GBP
View
A
Retailer 8
-
$430 USD
£339 GBP
View
A
Retailer 9
-
$447 USD
View
B+
Retailer 10
-
$569 USD
View
B+
Retailer 11
-
$616 USD
View
B
Retailer 12
-
$710 USD
View
Retailer 13
-
$762 USD
View
Price last confirmed 42 days ago
B
Retailer 14
-
$762 USD
View
B+
Retailer 15
-
$773 USD
SGD 1,045 SGD
View
B+
Retailer 16
-
$815 USD
View
Most Expensive
B
MOH London
LG783615018 · Oct 29
$1,120 USD
£882 GBP
View
16 more retailers have this diamond
Prices start from $191 USDSave up to $929 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
1.50ct Round
$191 USD