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1.72ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG520200032

Shape and cutting style on the report: Round brilliant

Certificate IGI LG520200032

Diamond specifications and retailer prices

From $621 USD
£489 GBP
As of October 30, 2026
Save $1,058 USD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,679 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.72ct lab-grown round diamond

This 1.72ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG520200032 or 520200032. Listed at 7 retailers as of October 29, 2026, with prices from $621 to $1,679, a $1,058 spread on the same certified stone. MOH London lists it at $1,679. 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

1.72
Carat
G
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520200032
Dimensions7.70 × 7.66 × 4.77 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.70 mm7.66 mm1.72 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520200032
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,679 USD|Low: $483 USD|High: $1,679 USD|Avg: $938 USD|+24.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 2$621 USD
Retailer 5$631 USD
Retailer 3$766 USD
Retailer 6$875 USD
Retailer 4$1,136 USD
Retailer 7$1,390 USD
MOH London$1,679 USD

30 data points across 7 retailers

7 retailers$621 USD to $1,679 USD

B+
Cheapest Retailer
-
$621 USD
£489 GBP
B+
Retailer 2
-
$631 USD
View
B+
Retailer 3
-
$766 USD
£603 GBP
View
B
Retailer 4
-
$875 USD
View
B
Retailer 5
-
$1,136 USD
View
B
Retailer 6
-
$1,390 USD
View
Most Expensive
C
MOH London
LG520200032 · Oct 29
$1,679 USD
£1,322 GBP
View
6 more retailers have this diamond
Prices start from $621 USDSave up to $1,058 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.

B+
1.72ct Round
$621 USD