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Emerald|Lab Grown|IGI

1.31ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG500165050

Shape and cutting style on the report: Emerald cut

Certificate IGI LG500165050

Diamond specifications and retailer prices

From $1,386 NZD
As of November 6, 2026
Save $2,439 NZD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,522 NZD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1.31ct lab-grown emerald diamond

This 1.31ct lab-grown emerald sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500165050 or 500165050. Listed at 12 retailers as of November 4, 2026, with a 176% 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

1.31
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle20.5°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500165050
Dimensions7.45 × 5.22 × 3.43 mm
L/W Ratio1.43
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
7.45 mm5.22 mm1.31 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500165050
Side View
Table 62.0%Crown 20.5°Girdle: MED-STKPavilion 34.6°Culet: LNGDepth 65.7%

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 6
Current: $4,522 NZD|Low: $1,331 NZD|High: $6,100 NZD|Avg: $2,505 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$1,386 NZD
Retailer 3$1,509 NZD
Retailer 4$1,551 NZD
Retailer 10$1,608 NZD
Retailer 12$1,608 NZD
Retailer 7$1,921 NZD
Retailer 6$1,939 NZD
Retailer 2$2,441 NZD
Retailer 11$2,595 NZD
Retailer 8$3,825 NZD
NZ Jewellers$4,522 NZD
Retailer 5$6,011 NZD

45 data points across 12 retailers

12 retailers$1,386 NZD to $3,825 NZD

B+
Cheapest Retailer
-
$1,386 NZD
B
Retailer 2
-
$1,509 NZD
View
B
Retailer 3
-
$1,551 NZD
View
Final sale: no returns
B
Retailer 4
-
$1,608 NZD
View
Retailer 5
-
$1,608 NZD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$1,921 NZD
View
B
Retailer 7
-
$1,939 NZD
View
B
Retailer 8
-
$2,441 NZD
View
B
Retailer 9
-
$2,595 NZD
View
B
Retailer 10
-
$3,825 NZD
View
Most Expensive
NZ Jewellers
308baf7e-0b47-491c-8005-f0d63857c6bd · Nov 6
$4,522 NZD
$2,542 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,386 NZDSave up to $2,439 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+
1.31ct Emerald
$1,386 NZD