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Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG836669310

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG836669310

Diamond specifications and retailer prices

From $360 USD
£284 GBP
As of November 2, 2026
Save $1,670 USD (82%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,273 USD at Queensmith · As of October 23, 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 LG836669310 or 836669310. Listed at 19 retailers as of October 27, 2026, with a 464% 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 angle36.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836669310
Dimensions9.51 × 6.58 × 4.13 mm
L/W Ratio1.45
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.51 mm6.58 mm1.66 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836669310
Side View
Table 59.0%Crown 36.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.8%

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 2
Current: $2,273 USD|Low: $230 USD|High: $2,273 USD|Avg: $870 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
Retailer 17
November 3, 2026
Retailer 4$230 USD
Retailer 8$258 USD
Retailer 9$286 USD
Retailer 13$360 USD
Retailer 3$385 USD
Retailer 16$494 USD
Retailer 11$580 USD
Retailer 6$601 USD
Retailer 10$722 USD
Retailer 17$921 USD
Retailer 2$1,042 USD
Retailer 5$1,080 USD
Retailer 7$1,142 USD
Retailer 14$1,213 USD
Retailer 12$1,236 USD
Retailer 15$2,030 USD
Queensmith$2,273 USD

32 data points across 17 retailers

19 retailers$360 USD to $2,030 USD

Retailer 1
-
$230 USD
Price last confirmed 11 days ago
Retailer 2
-
$231 USD
View
Price last confirmed 35 days ago
Retailer 3
-
$268 USD
View
Price last confirmed 38 days ago
Retailer 4
-
$283 USD
View
Price last confirmed 36 days ago
Retailer 5
-
$285 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$360 USD
£284 GBP
View
Retailer 7
-
$385 USD
View
Price last confirmed 11 days ago
A
Retailer 8
-
$580 USD
£457 GBP
View
Retailer 9
-
$601 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
$722 USD
A$1,110 AUD
View
Retailer 11
-
$918 USD
View
Price last confirmed 12 days ago
Retailer 12
-
$921 USD
View
Price last confirmed 11 days ago
Retailer 13
-
$921 USD
View
Price last confirmed 36 days ago
B+
Retailer 14
-
$1,042 USD
View
Retailer 15
-
$1,080 USD
A$1,661 AUD
View
Price last confirmed 26 days ago
B
Retailer 16
-
$1,213 USD
View
B
Retailer 17
-
$1,236 USD
£973 GBP
View
B
Retailer 18
-
$2,030 USD
View
Most Expensive
Queensmith
LG836669310 · Oct 23
$2,273 USD
£1,790 GBP
View
Price last confirmed 10 days ago
18 more retailers have this diamond
Prices start from $360 USDSave up to $1,670 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
$360 USD