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Round|Lab Grown|IGI

1.72ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG12023004

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12023004

Diamond specifications and retailer prices

From $898 AUD
$631 USD
As of October 30, 2026
Save $1,483 AUD (62%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,381 AUD at MOH London · As of October 26, 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 LG12023004 or 12023004. Listed at 10 retailers as of October 26, 2026, with prices from $898 to $2,381, a $1,483 spread on the same certified stone. MOH London lists it at $2,381. 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
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12023004
Dimensions7.71 × 7.69 × 4.75 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
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Top View
7.71 mm7.69 mm1.72 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12023004
Side View
Table 58.5%Crown 35.5°Girdle: THN-UNDPavilion 41.2°Culet: NoneDepth 61.7%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $2,381 AUD|Low: $431 AUD|High: $2,390 AUD|Avg: $1,219 AUD|+25.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 6$431 AUD
Retailer 8$886 AUD
Retailer 4$898 AUD
Retailer 2$1,081 AUD
Retailer 5$1,245 AUD
Retailer 3$1,617 AUD
Retailer 7$1,979 AUD
MOH London$2,381 AUD

31 data points across 8 retailers

10 retailers$898 AUD to $2,381 AUD

Retailer 1
-
$347 AUD
$244 USD
Price last confirmed 39 days ago
Retailer 2
-
$403 AUD
$283 USD
View
Price last confirmed 39 days ago
Retailer 3
-
$426 AUD
$299 USD
View
Price last confirmed 39 days ago
B+
Retailer 4
-
$898 AUD
$631 USD
View
B+
Retailer 5
-
$1,081 AUD
£598 GBP
View
B
Retailer 6
-
$1,245 AUD
$875 USD
View
Retailer 7
-
$1,529 AUD
$1,074 USD
View
Price last confirmed 40 days ago
B
Retailer 8
-
$1,617 AUD
$1,136 USD
View
B
Retailer 9
-
$1,979 AUD
$1,390 USD
View
Most Expensive
C
MOH London
LG12023004 · Oct 26
$2,381 AUD
£1,317 GBP
View
9 more retailers have this diamond
Prices start from $898 AUDSave up to $1,483 AUD

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
$898 AUD