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 $779 USD
As of October 30, 2026
Save $1,371 USD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,542 USD at NZ Jewellers · As of October 31, 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 October 30, 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
Color
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: Oct 30
Current: $2,542 USD|Low: $622 USD|High: $3,429 USD|Avg: $1,392 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 1, 2026
Retailer 9$779 USD
Retailer 3$848 USD
Retailer 4$872 USD
Retailer 10$904 USD
Retailer 12$904 USD
Retailer 6$1,080 USD
Retailer 5$1,090 USD
Retailer 2$1,386 USD
Retailer 11$1,459 USD
Retailer 8$2,150 USD
NZ Jewellers$2,542 USD
Retailer 7$3,393 USD

44 data points across 12 retailers

12 retailers$779 USD to $2,150 USD

B+
Cheapest Retailer
-
$779 USD
B
Retailer 2
-
$848 USD
View
B
Retailer 3
-
$872 USD
View
Final sale: no returns
B
Retailer 4
-
$904 USD
View
Retailer 5
-
$904 USD
View
Price last confirmed 19 days ago
B
Retailer 6
-
$1,080 USD
View
B
Retailer 7
-
$1,090 USD
View
B
Retailer 8
-
$1,386 USD
£1,091 GBP
View
B
Retailer 9
-
$1,459 USD
View
B
Retailer 10
-
$2,150 USD
View
Most Expensive
NZ Jewellers
308baf7e-0b47-491c-8005-f0d63857c6bd · Oct 31
$2,542 USD
View
Price under review
10 more retailers have this diamond
Prices start from $779 USDSave up to $1,371 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+
1.31ct Emerald
$779 USD