Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG836674985

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836674985

Diamond specifications and retailer prices

From $249 USD
As of October 29, 2026
Save $987 USD (80%) vs most expensive(unlock to see where)
20 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 LG836674985 or 836674985. Listed at 20 retailers as of October 29, 2026, with a 396% 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 angle37.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836674985
Dimensions9.31 × 6.61 × 4.19 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.31 mm6.61 mm1.66 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836674985
Side View
Table 62.0%Crown 37.5°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 63.4%

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: $2,273 USD|Low: $183 USD|High: $2,273 USD|Avg: $837 USD
Queensmith
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 5$230 USD
Retailer 16$277 USD
Retailer 8$286 USD
Retailer 4$494 USD
Retailer 11$517 USD
Retailer 12$529 USD
Retailer 9$586 USD
Retailer 13$607 USD
Retailer 14$718 USD
Retailer 10$994 USD
Retailer 3$1,042 USD
Retailer 6$1,080 USD
Retailer 7$1,142 USD
Retailer 15$1,213 USD
Retailer 2$1,236 USD
Queensmith$2,273 USD

39 data points across 16 retailers

20 retailers$249 USD to $1,236 USD

Retailer 1
-
$230 USD
Price last confirmed 13 days ago
Retailer 2
-
$231 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
$249 USD
View
Retailer 4
-
$268 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
$277 USD
View
Final sale: no returns
Retailer 6
-
$283 USD
View
Price last confirmed 34 days ago
Retailer 7
-
$285 USD
View
Price last confirmed 16 days ago
A
Retailer 8
-
$517 USD
View
A
Retailer 9
-
$529 USD
ZAR 8,554 ZAR
View
A
Retailer 10
-
$586 USD
£462 GBP
View
A
Retailer 11
-
$607 USD
View
B+
Retailer 12
-
$718 USD
A$1,105 AUD
View
Retailer 13
-
$918 USD
View
Price last confirmed 13 days ago
Retailer 14
-
$921 USD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
$994 USD
View
B+
Retailer 16
-
$1,042 USD
View
Retailer 17
-
$1,080 USD
A$1,661 AUD
View
Price last confirmed 31 days ago
B
Retailer 18
-
$1,213 USD
View
B
Retailer 19
-
$1,236 USD
£973 GBP
View
Most Expensive
Queensmith
LG836674985 · Oct 20
$2,273 USD
£1,790 GBP
View
Price last confirmed 11 days ago
19 more retailers have this diamond
Prices start from $249 USDSave up to $987 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