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Round|Lab Grown|IGI

1.53ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG770637221

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770637221

Diamond specifications and retailer prices

From $421 USD
€401 EUR
As of November 2, 2026
Save $759 USD (64%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,180 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.53ct lab-grown round diamond

This 1.53ct 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 LG770637221 or 770637221. Listed at 11 retailers as of November 1, 2026, with prices from $421 to $1,180, a $759 spread on the same certified stone. MOH London lists it at $1,180. 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

1.53
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770637221
Dimensions7.44 × 7.43 × 4.51 mm
L/W Ratio1.00
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 mm7.43 mm1.53 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770637221
Side View
Table 58.0%Crown 33.5°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.6%

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 2
Current: $1,180 USD|Low: $252 USD|High: $1,194 USD|Avg: $612 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$252 USD
Retailer 3$421 USD
Retailer 7$437 USD
Retailer 4$459 USD
Retailer 9$509 USD
Retailer 2$660 USD
Retailer 5$715 USD
Retailer 6$870 USD
MOH London$1,180 USD

42 data points across 9 retailers

11 retailers$421 USD to $1,180 USD

Retailer 1
-
$252 USD
Price last confirmed 8 days ago
A
Retailer 2
-
$421 USD
€401 EUR
View
B+
Retailer 3
-
$437 USD
View
A
Retailer 4
-
$459 USD
£361 GBP
View
A
Retailer 5
-
$467 USD
View
B+
Retailer 6
-
$509 USD
View
B+
Retailer 7
-
$660 USD
View
B+
Retailer 8
-
$715 USD
View
B
Retailer 9
-
$865 USD
View
B
Retailer 10
-
$870 USD
View
Most Expensive
B
MOH London
LG770637221 · Nov 1
$1,180 USD
£929 GBP
View
10 more retailers have this diamond
Prices start from $421 USDSave up to $759 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
1.53ct Round
$421 USD