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Asscher|Lab Grown|IGI

1.66ct E VVS1 Asscher Lab Grown Diamond

ID • E/VVS1 • IGI LG678580362

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG678580362

Diamond specifications and retailer prices

From $328 USD
As of November 1, 2026
Save $2,092 USD (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $2,420 USD 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG678580362 or 678580362. Listed at 25 retailers as of October 31, 2026, with prices from $328 to $2,420, a $2,092 spread on the same certified stone. Brilliant Earth lists it at $2,420. 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
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678580362
Dimensions6.60 × 6.46 × 4.12 mm
L/W Ratio1.02
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.60 mm6.46 mm1.66 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678580362
Side View
Table 60.0%Crown 31.9°Girdle: Slightly ThickPavilion 37.7°Culet: NoneDepth 63.8%

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: $2,420 USD|Low: $364 USD|High: $2,840 USD|Avg: $1,036 USD|-14.8%
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
November 2, 2026
Retailer 3$364 USD
Retailer 7$385 USD
Retailer 4$490 USD
Retailer 9$596 USD
Retailer 6$628 USD
Retailer 2$645 USD
Retailer 11$847 USD
Retailer 13$938 USD
Retailer 8$1,144 USD
Retailer 5$1,277 USD
Retailer 10$1,467 USD
Retailer 12$2,015 USD
Brilliant Earth$2,420 USD

37 data points across 13 retailers

25 retailers$328 USD to $2,420 USD

A
Cheapest Retailer
-
$328 USD
Final sale: no returns
Retailer 2
-
$364 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$385 USD
£303 GBP
View
A
Retailer 4
-
$410 USD
HK$3,200 HKD
View
B+
Retailer 5
-
$490 USD
View
A
Retailer 6
-
$520 USD
View
A
Retailer 7
-
$572 USD
€545 EUR
View
A
Retailer 8
-
$596 USD
€568 EUR
View
A
Retailer 9
-
$628 USD
ZAR 10,143 ZAR
View
A
Retailer 10
-
$630 USD
View
A
Retailer 11
-
$645 USD
£508 GBP
View
B+
Retailer 12
-
$745 USD
View
B+
Retailer 13
-
$847 USD
A$1,303 AUD
View
B+
Retailer 14
-
$938 USD
View
B+
Retailer 15
-
$1,144 USD
A$1,760 AUD
View
B
Retailer 16
-
$1,168 USD
SGD 1,579 SGD
View
B
Retailer 17
-
$1,219 USD
View
B
Retailer 18
-
$1,277 USD
View
B
Retailer 19
-
$1,280 USD
£1,008 GBP
View
B
Retailer 20
-
$1,417 USD
£1,116 GBP
View
B+
Retailer 21
-
$1,467 USD
£1,155 GBP
View
B
Retailer 22
-
$1,492 USD
View
B
Retailer 23
-
$1,525 USD
View
B
Retailer 24
-
$2,015 USD
View
Most Expensive
B
Brilliant Earth
13678808A · Oct 31
$2,420 USD
View
24 more retailers have this diamond
Prices start from $328 USDSave up to $2,092 USD

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
$328 USD