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Emerald|Lab Grown|IGI

1.66ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG680560448

Shape and cutting style on the report: Emerald cut

Certificate IGI LG680560448

Diamond specifications and retailer prices

From $327 AUD
$230 USD
As of October 30, 2026
Save $3,054 AUD (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,381 AUD at Rare Carat · As of November 1, 2026
View at Rare Carat

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG680560448 or 680560448. Listed at 18 retailers as of October 30, 2026, with prices from $327 to $3,381, a $3,054 spread on the same certified stone. Rare Carat lists it at $3,381. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680560448
Dimensions7.84 × 5.49 × 3.78 mm
L/W Ratio1.43
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
7.84 mm5.49 mm1.66 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680560448
Side View
Table 62.0%Crown 34.6°Girdle: MediumPavilion 39.3°Culet: LargeDepth 68.9%

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: $3,381 AUD|Low: $315 AUD|High: $3,445 AUD|Avg: $976 AUD|-1.9%
Rare Carat
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
November 1, 2026
Retailer 15$327 AUD
Retailer 4$364 AUD
Retailer 7$380 AUD
Retailer 6$406 AUD
Retailer 16$406 AUD
Retailer 14$567 AUD
Retailer 10$697 AUD
Retailer 9$759 AUD
Retailer 8$773 AUD
Retailer 11$948 AUD
Retailer 5$1,304 AUD
Retailer 13$1,308 AUD
Retailer 12$1,584 AUD
Retailer 2$1,625 AUD
Retailer 3$1,651 AUD
Rare Carat$3,381 AUD

45 data points across 16 retailers

18 retailers$327 AUD to $3,381 AUD

A
Cheapest Retailer
-
$327 AUD
$230 USD
A
Retailer 2
-
$364 AUD
$256 USD
View
Final sale: no returns
A
Retailer 3
-
$380 AUD
$267 USD
View
Retailer 4
-
$406 AUD
$285 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$406 AUD
$285 USD
View
B+
Retailer 6
-
$567 AUD
$398 USD
View
A
Retailer 7
-
$697 AUD
ZAR 7,908 ZAR
View
A
Retailer 8
-
$759 AUD
£420 GBP
View
A
Retailer 9
-
$773 AUD
$543 USD
View
A
Retailer 10
-
$948 AUD
View
A
Retailer 11
-
$1,304 AUD
$916 USD
View
A
Retailer 12
-
$1,308 AUD
$919 USD
View
A
Retailer 13
-
$1,379 AUD
$968 USD
View
B+
Retailer 14
-
$1,584 AUD
£876 GBP
View
B+
Retailer 15
-
$1,625 AUD
£899 GBP
View
B+
Retailer 16
-
$1,651 AUD
$1,160 USD
View
B+
Retailer 17
-
$1,678 AUD
$1,179 USD
View
Most Expensive
B
Rare Carat
GD5859_l_680560448 · Nov 1
$3,381 AUD
$2,375 USD
View
17 more retailers have this diamond
Prices start from $327 AUDSave up to $3,054 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
$327 AUD