Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG835639081

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG835639081

Diamond specifications and retailer prices

From $249 USD
As of October 29, 2026
Save $993 USD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,273 USD at Queensmith · As of October 20, 2026
View at Queensmith

About this 1.66ct lab-grown oval diamond

This 1.66ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG835639081 or 835639081. Listed at 19 retailers as of October 29, 2026, with a 399% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835639081
Dimensions9.48 × 6.76 × 4.24 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.48 mm6.76 mm1.66 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835639081
Side View
Table 60.0%Crown 35.5°Girdle: THN-MEDPavilion 41.4°Culet: NoneDepth 62.7%

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: Oct 29
Current: $586 USD|Low: $221 USD|High: $1,242 USD|Avg: $646 USD|+8.7%
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Retailer 19
October 31, 2026
Retailer 7$249 USD
Retailer 6$277 USD
Retailer 10$285 USD
Retailer 3$288 USD
Retailer 15$308 USD
Retailer 13$361 USD
Retailer 9$494 USD
Retailer 17$517 USD
Retailer 19$529 USD
Retailer 16$564 USD
Retailer 1$586 USD
Retailer 2$607 USD
Retailer 4$718 USD
Retailer 18$991 USD
Retailer 12$994 USD
Retailer 8$1,042 USD
Retailer 11$1,080 USD
Retailer 5$1,213 USD
Retailer 14$1,242 USD

32 data points across 19 retailers

19 retailers$249 USD to $1,242 USD

A
Cheapest Retailer
-
$249 USD
A
Retailer 2
-
$277 USD
View
Final sale: no returns
Retailer 3
-
$285 USD
View
Price last confirmed 15 days ago
A
Retailer 4
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$288 USD
View
A
Retailer 5
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$308 USD
View
A
Retailer 6
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$361 USD
£284 GBP
View
A
Retailer 7
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$517 USD
View
A
Retailer 8
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$529 USD
ZAR 8,554 ZAR
View
A
Retailer 9
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$564 USD
View
A
Retailer 10
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$586 USD
£462 GBP
View
A
Retailer 11
-
$607 USD
View
B+
Retailer 12
-
$718 USD
A$1,105 AUD
View
B+
Retailer 13
-
$991 USD
View
B+
Retailer 14
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$994 USD
View
B+
Retailer 15
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$1,042 USD
View
Retailer 16
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$1,080 USD
A$1,661 AUD
View
Price last confirmed 30 days ago
B
Retailer 17
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$1,213 USD
View
B
Retailer 18
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$1,242 USD
£978 GBP
View
Most Expensive
Queensmith
LG835639081 · Oct 20
$2,273 USD
£1,790 GBP
View
Price last confirmed 11 days ago
18 more retailers have this diamond
Prices start from $249 USDSave up to $993 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 Oval
$249 USD