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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 $1,120 NZD
$631 USD
As of November 1, 2026
Save $1,844 NZD (62%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,963 NZD at MOH London · As of November 1, 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 November 1, 2026, with prices from $1,120 to $2,963, a $1,844 spread on the same certified stone. MOH London lists it at $2,963. 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: Nov 1
Current: $2,963 NZD|Low: $538 NZD|High: $2,979 NZD|Avg: $1,529 NZD|+24.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6$538 NZD
Retailer 8$1,105 NZD
Retailer 4$1,120 NZD
Retailer 2$1,359 NZD
Retailer 5$1,552 NZD
Retailer 3$2,016 NZD
Retailer 7$2,466 NZD
MOH London$2,963 NZD

31 data points across 8 retailers

10 retailers$1,120 NZD to $2,963 NZD

Retailer 1
-
$433 NZD
$244 USD
Price last confirmed 40 days ago
Retailer 2
-
$502 NZD
$283 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$531 NZD
$299 USD
View
Price last confirmed 40 days ago
B+
Retailer 4
-
$1,120 NZD
$631 USD
View
B+
Retailer 5
-
$1,359 NZD
£603 GBP
View
B
Retailer 6
-
$1,552 NZD
$875 USD
View
Retailer 7
-
$1,906 NZD
$1,074 USD
View
Price last confirmed 41 days ago
B
Retailer 8
-
$2,016 NZD
$1,136 USD
View
B
Retailer 9
-
$2,466 NZD
$1,390 USD
View
Most Expensive
C
MOH London
LG12023004 · Nov 1
$2,963 NZD
£1,315 GBP
View
9 more retailers have this diamond
Prices start from $1,120 NZDSave up to $1,844 NZD

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
$1,120 NZD