Emerald|Lab Grown|IGI

1.66ct D IF Emerald Lab Grown Diamond

VG • D/IF • IGI LG843604942

Shape and cutting style on the report: Emerald cut

Certificate IGI LG843604942

Diamond specifications and retailer prices

From $277 USD
As of November 1, 2026
Save $2,973 USD (91%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,250 USD 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG843604942 or 843604942. Listed at 15 retailers as of October 31, 2026, with prices from $277 to $3,250, a $2,973 spread on the same certified stone. Brilliant Earth lists it at $3,250. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.66
Carat
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.4°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843604942
Dimensions7.87 × 5.57 × 3.79 mm
L/W Ratio1.41
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
7.87 mm5.57 mm1.66 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843604942
Side View
Table 65.0%Crown 39.4°Girdle: MediumPavilion 35.8°Culet: LargeDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $3,250 USD|Low: $260 USD|High: $3,780 USD|Avg: $1,254 USD|-14.0%
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
Retailer 15
November 1, 2026
Retailer 12$277 USD
Retailer 6$321 USD
Retailer 13$520 USD
Retailer 11$530 USD
Retailer 3$566 USD
Retailer 8$631 USD
Retailer 9$883 USD
Retailer 7$946 USD
Retailer 15$1,054 USD
Retailer 4$1,087 USD
Retailer 5$1,217 USD
Retailer 2$1,518 USD
Retailer 14$2,460 USD
Retailer 10$2,755 USD
Brilliant Earth$3,250 USD

14 data points across 15 retailers

15 retailers$277 USD to $3,250 USD

A
Cheapest Retailer
-
$277 USD
A
Retailer 2
-
$321 USD
View
A
Retailer 3
-
$520 USD
View
A
Retailer 4
-
$530 USD
View
A
Retailer 5
-
$566 USD
View
A
Retailer 6
-
$631 USD
€601 EUR
View
A
Retailer 7
-
$883 USD
A$1,358 AUD
View
B+
Retailer 8
-
$946 USD
View
B+
Retailer 9
-
$1,054 USD
View
B+
Retailer 10
-
$1,087 USD
View
B+
Retailer 11
-
$1,217 USD
View
B+
Retailer 12
-
$1,518 USD
£1,195 GBP
View
B
Retailer 13
-
$2,460 USD
View
B
Retailer 14
-
$2,755 USD
View
Most Expensive
B
Brilliant Earth
22166412Y · Oct 31
$3,250 USD
View
14 more retailers have this diamond
Prices start from $277 USDSave up to $2,973 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
$277 USD