Emerald|Lab Grown|IGI

1.57ct G SI1 Emerald Lab Grown Diamond

ID • G/SI1 • IGI LG825630571

Shape and cutting style on the report: Emerald cut

Certificate IGI LG825630571

Diamond specifications and retailer prices

From $360 NZD
$203 USD
As of October 29, 2026
Save $1,515 NZD (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,016 NZD at Reve Diamonds · As of October 25, 2026
View at Reve Diamonds

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825630571 or 825630571. Listed at 15 retailers as of October 26, 2026, with a 421% 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825630571
Dimensions8.29 × 5.42 × 3.59 mm
L/W Ratio1.53
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.29 mm5.42 mm1.57 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825630571
Side View
Table 67.0%Crown 41.1°Girdle: MED-STKPavilion 41.4°Culet: LargeDepth 66.2%

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 29
Current: $678 NZD|Low: $328 NZD|High: $2,218 NZD|Avg: $1,237 NZD|-4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Reve Diamonds
October 29, 2026
Retailer 7$360 NZD
Retailer 6$541 NZD
Retailer 1$678 NZD
Retailer 3$719 NZD
Retailer 5$983 NZD
Retailer 8$1,384 NZD
Retailer 2$1,544 NZD
Retailer 9$1,863 NZD
Retailer 4$1,875 NZD
Reve Diamonds$2,016 NZD

40 data points across 10 retailers

15 retailers$360 NZD to $1,875 NZD

A
Cheapest Retailer
-
$360 NZD
$203 USD
Final sale: no returns
Retailer 2
-
$387 NZD
$218 USD
View
Price last confirmed 21 days ago
Retailer 3
-
$447 NZD
$252 USD
View
Price last confirmed 22 days ago
Retailer 4
-
$479 NZD
$270 USD
View
Price last confirmed 29 days ago
B+
Retailer 5
-
$541 NZD
$305 USD
View
A
Retailer 6
-
$678 NZD
€364 EUR
View
A
Retailer 7
-
$719 NZD
£319 GBP
View
A
Retailer 8
-
$983 NZD
$554 USD
View
B
Retailer 9
-
$1,384 NZD
$780 USD
View
Retailer 10
-
$1,540 NZD
$868 USD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
$1,544 NZD
$870 USD
View
B
Retailer 12
-
$1,863 NZD
$1,050 USD
View
B
Retailer 13
-
$1,863 NZD
$1,050 USD
View
B
Retailer 14
-
$1,875 NZD
£832 GBP
View
Most Expensive
B
Reve Diamonds
78D5BD634 · Oct 25
$2,016 NZD
$1,136 USD
View
Price last confirmed 7 days ago
14 more retailers have this diamond
Prices start from $360 NZDSave up to $1,515 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
1.57ct Emerald
$360 NZD