Emerald|Lab Grown|IGI

6.66ct E FL Emerald Lab Grown Diamond

ID • E/FL • IGI LG811634782

Shape and cutting style on the report: Emerald cut

Certificate IGI LG811634782

Diamond specifications and retailer prices

From $21,040 USD
As of October 28, 2026
Save $44,497 USD (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $65,537 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 6.66ct lab-grown emerald diamond

This 6.66ct lab-grown emerald sits in the over five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811634782 or 811634782. Listed at 9 retailers as of October 28, 2026, with prices from $21,040 to $65,537, a $44,497 spread on the same certified stone. Taylor and Hart lists it at $65,537. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.66
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811634782
Dimensions12.39 × 8.85 × 5.98 mm
L/W Ratio1.40
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
12.39 mm8.85 mm6.66 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811634782
Side View
Table 63.0%Crown 38.4°Girdle: MediumPavilion 41.1°Culet: LargeDepth 67.6%

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 28
Current: $41,783 USD|Low: $21,040 USD|High: $65,537 USD|Avg: $35,575 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Taylor and Hart
November 1, 2026
Retailer 5$21,040 USD
Retailer 6$23,902 USD
Retailer 8$26,690 USD
Retailer 7$28,238 USD
Retailer 4$29,500 USD
Retailer 2$30,014 USD
Retailer 1$41,783 USD
Retailer 3$50,047 USD
Taylor and Hart$65,537 USD

26 data points across 9 retailers

9 retailers$21,040 USD to $65,537 USD

A
Cheapest Retailer
-
$21,040 USD
B+
Retailer 2
-
$23,902 USD
View
B+
Retailer 3
-
$26,690 USD
View
B+
Retailer 4
-
$28,238 USD
View
B+
Retailer 5
-
$29,500 USD
View
B+
Retailer 6
-
$30,014 USD
£23,633 GBP
View
B
Retailer 7
-
$41,783 USD
£32,900 GBP
View
B
Retailer 8
-
$50,047 USD
€47,664 EUR
View
Most Expensive
B
Taylor and Hart
OB8SBTD · Oct 31
$65,537 USD
View
8 more retailers have this diamond
Prices start from $21,040 USDSave up to $44,497 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
6.66ct Emerald
$21,040 USD