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 $1,734 USD
As of October 30, 2026
Save $1,423 USD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,770 USD 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 October 26, 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,770 USD|Low: $1,386 USD|High: $5,822 USD|Avg: $2,660 USD
NZ Jewellers
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 7$1,734 USD
Retailer 8$1,790 USD
Retailer 12$1,887 USD
Retailer 3$1,942 USD
Retailer 9$2,012 USD
Retailer 11$2,012 USD
Retailer 4$2,180 USD
Retailer 2$2,846 USD
Retailer 10$3,157 USD
Retailer 6$3,468 USD
NZ Jewellers$3,770 USD
Retailer 5$5,776 USD

43 data points across 12 retailers

12 retailers$1,734 USD to $3,157 USD

B
Cheapest Retailer
-
$1,734 USD
B
Retailer 2
-
$1,790 USD
View
B
Retailer 3
-
$1,887 USD
View
B
Retailer 4
-
$1,942 USD
View
Final sale: no returns
B
Retailer 5
-
$2,012 USD
View
Retailer 6
-
$2,012 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$2,180 USD
View
B
Retailer 8
-
$2,846 USD
£2,241 GBP
View
B
Retailer 9
-
$3,157 USD
View
Retailer 10
-
$3,468 USD
View
Price under review
Most Expensive
NZ Jewellers
7e4cb6b3-91e1-4e80-9115-3e93694955b3 · Oct 31
$3,770 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,734 USDSave up to $1,423 USD

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
$1,734 USD