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1.72ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG440012004

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440012004

Diamond specifications and retailer prices

From $1,703 NZD
$960 USD
As of October 30, 2026
Save $6,557 NZD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,261 NZD at MOH London · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012004 or 440012004. Listed at 10 retailers as of October 27, 2026, with prices from $1,703 to $8,261, a $6,557 spread on the same certified stone. MOH London lists it at $8,261. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012004
Dimensions7.63 × 7.61 × 4.75 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.63 mm7.61 mm1.72 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012004
Side View
Table 56.0%Crown 36.3°Girdle: ThickPavilion 40.1°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $8,261 NZD|Low: $1,703 NZD|High: $8,360 NZD|Avg: $4,122 NZD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2$1,703 NZD
Retailer 5$2,491 NZD
Retailer 8$2,709 NZD
Retailer 10$2,787 NZD
Retailer 6$2,889 NZD
Retailer 3$3,224 NZD
Retailer 12$3,957 NZD
Retailer 7$4,562 NZD
Retailer 11$5,243 NZD
Retailer 9$5,415 NZD
Retailer 4$6,468 NZD
MOH London$8,261 NZD

14 data points across 12 retailers

10 retailers$1,703 NZD to $8,261 NZD

A
Cheapest Retailer
-
$1,703 NZD
$960 USD
B+
Retailer 2
-
$2,491 NZD
$1,404 USD
View
B+
Retailer 3
-
$2,709 NZD
$1,527 USD
View
B+
Retailer 4
-
$2,787 NZD
$1,571 USD
View
Final sale: no returns
Retailer 5
-
$2,889 NZD
$1,628 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,889 NZD
$1,628 USD
View
B
Retailer 7
-
$4,562 NZD
$2,571 USD
View
B
Retailer 8
-
$5,243 NZD
$2,955 USD
View
B
Retailer 9
-
$5,415 NZD
$3,052 USD
View
Most Expensive
B
MOH London
LG440012004 · Oct 27
$8,261 NZD
£3,666 GBP
View
9 more retailers have this diamond
Prices start from $1,703 NZDSave up to $6,557 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.

A
1.72ct Round
$1,703 NZD