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Asscher|Lab Grown|IGI

1.66ct D FL Asscher Lab Grown Diamond

ID • D/FL • IGI LG840634858

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG840634858

Diamond specifications and retailer prices

From $802 AUD
£443 GBP
As of November 2, 2026
Save $4,477 AUD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,280 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.66ct lab-grown asscher diamond

This 1.66ct lab-grown asscher sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG840634858 or 840634858. Listed at 16 retailers as of November 2, 2026, with prices from $802 to $5,280, a $4,477 spread on the same certified stone. Brilliant Earth lists it at $5,280. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634858
Dimensions6.57 × 6.47 × 4.30 mm
L/W Ratio1.02
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
6.57 mm6.47 mm1.66 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634858
Side View
Table 66.0%Crown 35°Girdle: MediumPavilion 39.7°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,280 AUD|Low: $802 AUD|High: $7,548 AUD|Avg: $2,560 AUD|-30.1%
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
November 2, 2026
Retailer 9$802 AUD
Retailer 6$886 AUD
Retailer 16$963 AUD
Retailer 3$1,194 AUD
Retailer 11$1,252 AUD
Retailer 10$1,309 AUD
Retailer 15$1,561 AUD
Retailer 4$1,769 AUD
Retailer 2$1,852 AUD
Retailer 5$2,486 AUD
Retailer 14$2,635 AUD
Retailer 13$2,787 AUD
Retailer 7$3,236 AUD
Retailer 8$4,515 AUD
Retailer 12$5,265 AUD
Brilliant Earth$5,280 AUD

18 data points across 16 retailers

16 retailers$802 AUD to $5,280 AUD

A
Cheapest Retailer
-
$802 AUD
£443 GBP
A
Retailer 2
-
$886 AUD
$621 USD
View
Final sale: no returns
A
Retailer 3
-
$963 AUD
$675 USD
View
A
Retailer 4
-
$1,194 AUD
$837 USD
View
A
Retailer 5
-
$1,252 AUD
£691 GBP
View
A
Retailer 6
-
$1,309 AUD
ZAR 14,819 ZAR
View
A
Retailer 7
-
$1,561 AUD
€1,042 EUR
View
B+
Retailer 8
-
$1,769 AUD
$1,240 USD
View
B+
Retailer 9
-
$1,852 AUD
$1,298 USD
View
B+
Retailer 10
-
$2,486 AUD
$1,742 USD
View
B+
Retailer 11
-
$2,635 AUD
$1,847 USD
View
B+
Retailer 12
-
$2,787 AUD
£1,538 GBP
View
B+
Retailer 13
-
$3,236 AUD
SGD 3,065 SGD
View
B
Retailer 14
-
$4,515 AUD
$3,164 USD
View
B
Retailer 15
-
$5,265 AUD
$3,690 USD
View
Most Expensive
B
Brilliant Earth
21861625A · Nov 2
$5,280 AUD
$3,700 USD
View
15 more retailers have this diamond
Prices start from $802 AUDSave up to $4,477 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 Asscher
$802 AUD