Emerald|Lab Grown|IGI

1.56ct G SI1 Emerald Lab Grown Diamond

EX • G/SI1 • IGI LG605305730

Shape and cutting style on the report: Emerald cut

Certificate IGI LG605305730

Diamond specifications and retailer prices

From $240 USD
As of October 30, 2026
Save $1,450 USD (86%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,690 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.56ct lab-grown emerald diamond

This 1.56ct 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 LG605305730 or 605305730. Listed at 15 retailers as of October 29, 2026, with prices from $240 to $1,690, a $1,450 spread on the same certified stone. Brilliant Earth lists it at $1,690. 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

1.56
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605305730
Dimensions8.37 × 5.37 × 3.46 mm
L/W Ratio1.56
Culet sizeLong
Top View
8.37 mm5.37 mm1.56 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605305730
Side View
Table 67.0%Crown 35.1°Girdle: MED-STKPavilion 39.9°Culet: LNGDepth 64.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,690 USD|Low: $230 USD|High: $1,740 USD|Avg: $680 USD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 7$240 USD
Retailer 3$267 USD
Retailer 11$278 USD
Retailer 5$298 USD
Retailer 9$298 USD
Retailer 8$495 USD
Retailer 14$502 USD
Retailer 2$564 USD
Retailer 6$625 USD
Retailer 13$749 USD
Retailer 10$957 USD
Retailer 12$1,199 USD
Retailer 4$1,321 USD
Brilliant Earth$1,690 USD

42 data points across 14 retailers

15 retailers$240 USD to $1,690 USD

A
Cheapest Retailer
-
$240 USD
A
Retailer 2
-
$267 USD
View
Final sale: no returns
A
Retailer 3
-
$278 USD
View
Retailer 4
-
$298 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$298 USD
View
A
Retailer 6
-
$495 USD
€471 EUR
View
B+
Retailer 7
-
$502 USD
View
B+
Retailer 8
-
$564 USD
£444 GBP
View
B+
Retailer 9
-
$625 USD
View
B+
Retailer 10
-
$749 USD
View
B
Retailer 11
-
$957 USD
View
B
Retailer 12
-
$1,009 USD
View
B
Retailer 13
-
$1,199 USD
£944 GBP
View
B
Retailer 14
-
$1,321 USD
View
Most Expensive
B
Brilliant Earth
20602264A · Oct 29
$1,690 USD
View
14 more retailers have this diamond
Prices start from $240 USDSave up to $1,450 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.

A
1.56ct Emerald
$240 USD