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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 $395 AUD
$277 USD
As of November 1, 2026
Save $4,242 AUD (91%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,637 AUD at Brilliant Earth · As of November 2, 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 November 1, 2026, with prices from $395 to $4,637, a $4,242 spread on the same certified stone. Brilliant Earth lists it at $4,637. 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
Colour
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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $4,637 AUD|Low: $371 AUD|High: $5,394 AUD|Avg: $1,789 AUD|-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$395 AUD
Retailer 6$458 AUD
Retailer 13$742 AUD
Retailer 11$756 AUD
Retailer 3$808 AUD
Retailer 8$900 AUD
Retailer 9$1,260 AUD
Retailer 7$1,350 AUD
Retailer 15$1,504 AUD
Retailer 4$1,550 AUD
Retailer 5$1,737 AUD
Retailer 2$2,166 AUD
Retailer 14$3,510 AUD
Retailer 10$3,931 AUD
Brilliant Earth$4,637 AUD

14 data points across 15 retailers

15 retailers$395 AUD to $4,637 AUD

A
Cheapest Retailer
-
$395 AUD
$277 USD
A
Retailer 2
-
$458 AUD
$321 USD
View
A
Retailer 3
-
$742 AUD
$520 USD
View
A
Retailer 4
-
$756 AUD
$530 USD
View
A
Retailer 5
-
$808 AUD
$566 USD
View
A
Retailer 6
-
$900 AUD
€601 EUR
View
A
Retailer 7
-
$1,260 AUD
View
B+
Retailer 8
-
$1,350 AUD
$946 USD
View
B+
Retailer 9
-
$1,504 AUD
$1,054 USD
View
B+
Retailer 10
-
$1,550 AUD
$1,087 USD
View
B+
Retailer 11
-
$1,737 AUD
$1,217 USD
View
B+
Retailer 12
-
$2,166 AUD
£1,195 GBP
View
B
Retailer 13
-
$3,510 AUD
$2,460 USD
View
B
Retailer 14
-
$3,931 AUD
$2,755 USD
View
Most Expensive
B
Brilliant Earth
22166412Y · Nov 2
$4,637 AUD
$3,250 USD
View
14 more retailers have this diamond
Prices start from $395 AUDSave up to $4,242 AUD

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
$395 AUD