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Emerald|Lab Grown|IGI

1.66ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG662408415

Shape and cutting style on the report: Emerald cut

Certificate IGI LG662408415

Diamond specifications and retailer prices

From $479 AUD
$336 USD
As of November 1, 2026
Save $4,829 AUD (91%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $5,308 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 top-tier cut grade and certified by IGI LG662408415 or 662408415. Listed at 26 retailers as of November 1, 2026, with prices from $479 to $5,308, a $4,829 spread on the same certified stone. Brilliant Earth lists it at $5,308. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG662408415
Dimensions7.68 × 5.51 × 3.73 mm
L/W Ratio1.39
Culet sizeLong
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
7.68 mm5.51 mm1.66 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG662408415
Side View
Table 61.0%Crown 34.8°Girdle: Slightly ThickPavilion 41.1°Culet: LNGDepth 67.7%

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: Nov 1
Current: $5,308 AUD|Low: $428 AUD|High: $6,164 AUD|Avg: $1,447 AUD|-13.9%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 9$428 AUD
Retailer 11$479 AUD
Retailer 6$497 AUD
Retailer 10$524 AUD
Retailer 3$531 AUD
Retailer 13$756 AUD
Retailer 15$869 AUD
Retailer 8$909 AUD
Retailer 12$916 AUD
Retailer 2$942 AUD
Retailer 17$1,237 AUD
Retailer 18$1,286 AUD
Retailer 7$1,701 AUD
Retailer 5$1,707 AUD
Retailer 4$1,866 AUD
Retailer 16$2,138 AUD
Retailer 14$2,183 AUD
Retailer 19$3,995 AUD
Brilliant Earth$5,308 AUD

43 data points across 19 retailers

26 retailers$479 AUD to $5,308 AUD

Retailer 1
-
$428 AUD
$300 USD
Price last confirmed 33 days ago
A
Retailer 2
-
$479 AUD
$336 USD
View
Final sale: no returns
Retailer 3
-
$497 AUD
$348 USD
View
Price last confirmed 38 days ago
Retailer 4
-
$524 AUD
$367 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$531 AUD
$372 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$584 AUD
HK$3,200 HKD
View
A
Retailer 7
-
$713 AUD
$500 USD
View
A
Retailer 8
-
$756 AUD
$530 USD
View
A
Retailer 9
-
$869 AUD
€580 EUR
View
A
Retailer 10
-
$909 AUD
$637 USD
View
A
Retailer 11
-
$916 AUD
ZAR 10,366 ZAR
View
A
Retailer 12
-
$942 AUD
£520 GBP
View
A
Retailer 13
-
$1,237 AUD
View
A
Retailer 14
-
$1,286 AUD
$901 USD
View
Retailer 15
-
$1,374 AUD
$963 USD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$1,701 AUD
SGD 1,611 SGD
View
B+
Retailer 17
-
$1,705 AUD
$1,195 USD
View
Retailer 18
-
$1,707 AUD
$1,196 USD
View
Price last confirmed 33 days ago
B+
Retailer 19
-
$1,775 AUD
$1,244 USD
View
B+
Retailer 20
-
$1,866 AUD
$1,308 USD
View
B+
Retailer 21
-
$2,040 AUD
$1,430 USD
View
B+
Retailer 22
-
$2,138 AUD
£1,180 GBP
View
B+
Retailer 23
-
$2,159 AUD
$1,513 USD
View
B+
Retailer 24
-
$2,183 AUD
View
B
Retailer 25
-
$3,995 AUD
$2,800 USD
View
Most Expensive
B
Brilliant Earth
14067393A · Nov 2
$5,308 AUD
$3,720 USD
View
25 more retailers have this diamond
Prices start from $479 AUDSave up to $4,829 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
$479 AUD