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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 $786 CAD
£443 GBP
As of November 2, 2026
Save $4,383 CAD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,169 CAD at Brilliant Earth · As of October 31, 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 October 31, 2026, with prices from $786 to $5,169, a $4,383 spread on the same certified stone. Brilliant Earth lists it at $5,169. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $5,169 CAD|Low: $786 CAD|High: $7,390 CAD|Avg: $2,506 CAD|-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 2$786 CAD
Retailer 6$867 CAD
Retailer 16$943 CAD
Retailer 3$1,169 CAD
Retailer 10$1,226 CAD
Retailer 9$1,281 CAD
Retailer 15$1,528 CAD
Retailer 4$1,732 CAD
Retailer 14$1,792 CAD
Retailer 5$2,434 CAD
Retailer 13$2,580 CAD
Retailer 12$2,729 CAD
Retailer 7$3,168 CAD
Retailer 8$4,420 CAD
Retailer 11$5,155 CAD
Brilliant Earth$5,169 CAD

18 data points across 16 retailers

16 retailers$786 CAD to $5,169 CAD

A
Cheapest Retailer
-
$786 CAD
£443 GBP
A
Retailer 2
-
$867 CAD
$621 USD
View
Final sale: no returns
A
Retailer 3
-
$943 CAD
$675 USD
View
A
Retailer 4
-
$1,169 CAD
$837 USD
View
A
Retailer 5
-
$1,226 CAD
£691 GBP
View
A
Retailer 6
-
$1,281 CAD
ZAR 14,819 ZAR
View
A
Retailer 7
-
$1,528 CAD
€1,042 EUR
View
B+
Retailer 8
-
$1,732 CAD
$1,240 USD
View
B+
Retailer 9
-
$1,792 CAD
$1,283 USD
View
B+
Retailer 10
-
$2,434 CAD
$1,742 USD
View
B+
Retailer 11
-
$2,580 CAD
$1,847 USD
View
B+
Retailer 12
-
$2,729 CAD
£1,538 GBP
View
B+
Retailer 13
-
$3,168 CAD
SGD 3,065 SGD
View
B
Retailer 14
-
$4,420 CAD
$3,164 USD
View
B
Retailer 15
-
$5,155 CAD
$3,690 USD
View
Most Expensive
B
Brilliant Earth
21861625A · Oct 31
$5,169 CAD
$3,700 USD
View
15 more retailers have this diamond
Prices start from $786 CADSave up to $4,383 CAD

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
$786 CAD