Emerald|Lab Grown|IGI

1.51ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG496120877

Shape and cutting style on the report: Emerald cut

Certificate IGI LG496120877

Diamond specifications and retailer prices

From $1,669 USD
As of November 6, 2026
Save $1,373 USD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,629 USD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 1.51ct lab-grown emerald diamond

This 1.51ct 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 LG496120877 or 496120877. Listed at 13 retailers as of November 6, 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

1.51
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24.1°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG496120877
Dimensions7.75 × 5.56 × 3.49 mm
L/W Ratio1.39
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
7.75 mm5.56 mm1.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG496120877
Side View
Table 68.0%Crown 24.1°Girdle: MediumPavilion 36.3°Culet: LNGDepth 62.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $3,629 USD|Low: $1,602 USD|High: $5,595 USD|Avg: $2,584 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
November 6, 2026
Retailer 7$1,669 USD
Retailer 8$1,720 USD
Retailer 12$1,816 USD
Retailer 3$1,869 USD
Retailer 9$1,936 USD
Retailer 11$1,936 USD
Retailer 4$2,105 USD
Retailer 2$2,717 USD
Retailer 10$3,042 USD
Retailer 6$3,338 USD
NZ Jewellers$3,629 USD
Retailer 5$5,514 USD

44 data points across 12 retailers

13 retailers$1,669 USD to $3,042 USD

B
Cheapest Retailer
-
$1,669 USD
B
Retailer 2
-
$1,720 USD
View
B
Retailer 3
-
$1,816 USD
View
B
Retailer 4
-
$1,869 USD
View
Final sale: no returns
B
Retailer 5
-
$1,936 USD
View
Retailer 6
-
$1,936 USD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$2,105 USD
View
B
Retailer 8
-
$2,717 USD
View
B
Retailer 9
-
$3,042 USD
View
Retailer 10
-
$3,338 USD
View
Price under review
Most Expensive
NZ Jewellers
32873907-e994-4ce9-886e-fcc9f75963bf · Nov 6
$3,629 USD
View
Price under review
10 more retailers have this diamond
Prices start from $1,669 USDSave up to $1,373 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
1.51ct Emerald
$1,669 USD