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Emerald|Lab Grown|IGI

1.57ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG496134917

Shape and cutting style on the report: Emerald cut

Certificate IGI LG496134917

Diamond specifications and retailer prices

From $3,082 NZD
$1,734 USD
As of November 1, 2026
Save $2,529 NZD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,700 NZD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1.57ct lab-grown emerald diamond

This 1.57ct lab-grown emerald sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG496134917 or 496134917. Listed at 12 retailers as of November 1, 2026, with a 82% 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

1.57
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496134917
Dimensions7.82 × 5.40 × 3.74 mm
L/W Ratio1.45
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
7.82 mm5.40 mm1.57 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496134917
Side View
Table 63.0%Crown 26°Girdle: MediumPavilion 41.8°Culet: LNGDepth 69.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $6,700 NZD|Low: $2,959 NZD|High: $10,347 NZD|Avg: $4,748 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 2, 2026
Retailer 7$3,082 NZD
Retailer 8$3,181 NZD
Retailer 12$3,354 NZD
Retailer 3$3,452 NZD
Retailer 9$3,576 NZD
Retailer 11$3,576 NZD
Retailer 4$3,875 NZD
Retailer 2$5,069 NZD
Retailer 10$5,611 NZD
Retailer 6$6,164 NZD
NZ Jewellers$6,700 NZD
Retailer 5$10,266 NZD

43 data points across 12 retailers

12 retailers$3,082 NZD to $5,611 NZD

B
Cheapest Retailer
-
$3,082 NZD
$1,734 USD
B
Retailer 2
-
$3,181 NZD
$1,790 USD
View
B
Retailer 3
-
$3,354 NZD
$1,887 USD
View
B
Retailer 4
-
$3,452 NZD
$1,942 USD
View
Final sale: no returns
B
Retailer 5
-
$3,576 NZD
$2,012 USD
View
Retailer 6
-
$3,576 NZD
$2,012 USD
View
Price last confirmed 20 days ago
B
Retailer 7
-
$3,875 NZD
$2,180 USD
View
B
Retailer 8
-
$5,069 NZD
£2,246 GBP
View
B
Retailer 9
-
$5,611 NZD
$3,157 USD
View
Retailer 10
-
$6,164 NZD
$3,468 USD
View
Price under review
Most Expensive
NZ Jewellers
7e4cb6b3-91e1-4e80-9115-3e93694955b3 · Oct 31
$6,700 NZD
$3,770 USD
View
Price under review
10 more retailers have this diamond
Prices start from $3,082 NZDSave up to $2,529 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
1.57ct Emerald
$3,082 NZD