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Emerald|Lab Grown|IGI

1.66ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG593300900

Shape and cutting style on the report: Emerald cut

Certificate IGI LG593300900

Diamond specifications and retailer prices

From $191 USD
As of October 27, 2026
Save $1,639 USD (90%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,830 USD at Do Amore Diamonds · As of October 27, 2026
View at Do Amore Diamonds

About this 1.66ct lab-grown emerald diamond

This 1.66ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG593300900 or 593300900. Listed at 9 retailers as of October 27, 2026, with prices from $191 to $1,830, a $1,639 spread on the same certified stone. Do Amore Diamonds lists it at $1,830. 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

1.66
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593300900
Dimensions8.09 × 5.61 × 3.75 mm
L/W Ratio1.44
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
8.09 mm5.61 mm1.66 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593300900
Side View
Table 63.0%Crown 37.2°Girdle: MediumPavilion 41.9°Culet: LNGDepth 66.8%

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 27
Current: $1,830 USD|Low: $147 USD|High: $1,860 USD|Avg: $724 USD|-1.6%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 21, 2026
Retailer 7$191 USD
Retailer 9$217 USD
Retailer 6$222 USD
Retailer 5$415 USD
Retailer 10$761 USD
Retailer 4$765 USD
Retailer 8$841 USD
Retailer 3$915 USD
Retailer 2$1,054 USD
Do Amore Diamonds$1,830 USD

18 data points across 10 retailers

9 retailers$191 USD to $1,830 USD

A
Cheapest Retailer
-
$191 USD
A
Retailer 2
-
$217 USD
View
Final sale: no returns
A
Retailer 3
-
$222 USD
View
B+
Retailer 4
-
$415 USD
View
B+
Retailer 5
-
$765 USD
View
B+
Retailer 6
-
$841 USD
View
Retailer 7
-
$880 USD
View
Price last confirmed 12 days ago
Retailer 8
-
$1,054 USD
£830 GBP
View
Price last confirmed 9 days ago
Most Expensive
B
Do Amore Diamonds
27-B6124BE47 · Oct 27
$1,830 USD
View
8 more retailers have this diamond
Prices start from $191 USDSave up to $1,639 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
1.66ct Emerald
$191 USD