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Emerald|Lab Grown|IGI

1.66ct E SI1 Emerald Lab Grown Diamond

ID • E/SI1 • IGI LG626437419

Shape and cutting style on the report: Emerald cut

Certificate IGI LG626437419

Diamond specifications and retailer prices

From €190 EUR
$212 USD
As of October 30, 2026
Save €902 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,092 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG626437419 or 626437419. Listed at 15 retailers as of October 30, 2026, with prices from €190 to €1,092, a €902 spread on the same certified stone. Brilliant Earth lists it at €1,092. 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 angle34.7°
Pavilion angle43.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626437419
Dimensions8.31 × 5.68 × 3.72 mm
L/W Ratio1.46
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
8.31 mm5.68 mm1.66 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626437419
Side View
Table 64.0%Crown 34.7°Girdle: MediumPavilion 43.6°Culet: LNGDepth 65.5%

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: €1,092 EUR|Low: €158 EUR|High: €1,146 EUR|Avg: €554 EUR|-4.7%
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
November 1, 2026
Retailer 3€190 EUR
Retailer 10€220 EUR
Retailer 12€235 EUR
Retailer 13€235 EUR
Retailer 8€366 EUR
Retailer 5€405 EUR
Retailer 7€436 EUR
Retailer 4€536 EUR
Retailer 14€758 EUR
Retailer 11€761 EUR
Retailer 2€819 EUR
Retailer 9€950 EUR
Retailer 6€987 EUR
Brilliant Earth€1,092 EUR

40 data points across 14 retailers

15 retailers€190 EUR to €1,092 EUR

A
Cheapest Retailer
-
€190 EUR
$212 USD
A
Retailer 2
-
€220 EUR
$246 USD
View
A
Retailer 3
-
€235 EUR
$263 USD
View
Retailer 4
-
€235 EUR
$263 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
€366 EUR
View
B+
Retailer 6
-
€405 EUR
$453 USD
View
B+
Retailer 7
-
€436 EUR
£384 GBP
View
B+
Retailer 8
-
€536 EUR
$599 USD
View
B
Retailer 9
-
€758 EUR
$847 USD
View
B
Retailer 10
-
€761 EUR
$850 USD
View
Retailer 11
-
€810 EUR
$905 USD
View
Price last confirmed 13 days ago
B
Retailer 12
-
€819 EUR
$915 USD
View
B
Retailer 13
-
€950 EUR
£836 GBP
View
B
Retailer 14
-
€987 EUR
$1,103 USD
View
Most Expensive
B
Brilliant Earth
9811875A · Oct 31
€1,092 EUR
$1,220 USD
View
14 more retailers have this diamond
Prices start from €190 EURSave up to €902 EUR

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
€190 EUR