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Emerald|Lab Grown|IGI

1.72ct G SI2 Emerald Lab Grown Diamond

ID • G/SI2 • IGI LG512231544

Shape and cutting style on the report: Emerald cut

Certificate IGI LG512231544

Diamond specifications and retailer prices

From $1,921 NZD
As of November 4, 2026
Save $3,810 NZD (66%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,732 NZD at MOH London · As of November 3, 2026
View at MOH London

About this 1.72ct lab-grown emerald diamond

This 1.72ct lab-grown emerald 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 LG512231544 or 512231544. Listed at 11 retailers as of November 4, 2026, with a 198% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
SymmetryVery Good
FluorescenceNone
Crown angle18.9°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512231544
Dimensions8.09 × 5.94 × 3.72 mm
L/W Ratio1.36
Culet sizeLong
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
8.09 mm5.94 mm1.72 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG512231544
Side View
Table 67.5%Crown 18.9°Girdle: MediumPavilion 37.4°Culet: LNGDepth 62.6%

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 4
Current: $8,732 NZD|Low: $1,921 NZD|High: $8,849 NZD|Avg: $4,071 NZD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3$1,921 NZD
Retailer 4$2,636 NZD
Retailer 9$2,868 NZD
Retailer 10$2,951 NZD
Retailer 5$3,058 NZD
Retailer 8$3,058 NZD
Retailer 2$4,275 NZD
Retailer 6$4,817 NZD
Retailer 7$5,732 NZD
MOH London$8,732 NZD

45 data points across 10 retailers

11 retailers$1,921 NZD to $5,732 NZD

B+
Cheapest Retailer
-
$1,921 NZD
B
Retailer 2
-
$2,636 NZD
View
B
Retailer 3
-
$2,868 NZD
View
B
Retailer 4
-
$2,951 NZD
View
Final sale: no returns
B
Retailer 5
-
$3,058 NZD
View
Retailer 6
-
$3,058 NZD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$4,275 NZD
View
B
Retailer 8
-
$4,817 NZD
View
B
Retailer 9
-
$5,548 NZD
View
B
Retailer 10
-
$5,732 NZD
View
Most Expensive
MOH London
LG512231544 · Nov 3
$8,732 NZD
£3,865 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $1,921 NZDSave up to $3,810 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 Emerald
$1,921 NZD