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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 £186 GBP
$249 USD
As of October 29, 2026
Save £736 GBP (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,697 GBP 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
Colour
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

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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: £1,697 GBP|Low: £137 GBP|High: £1,697 GBP|Avg: £625 GBP
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£172 GBP
Retailer 16£207 GBP
Retailer 8£213 GBP
Retailer 4£368 GBP
Retailer 11£386 GBP
Retailer 12£395 GBP
Retailer 9£437 GBP
Retailer 13£453 GBP
Retailer 14£536 GBP
Retailer 10£742 GBP
Retailer 3£778 GBP
Retailer 6£806 GBP
Retailer 7£852 GBP
Retailer 15£905 GBP
Retailer 2£922 GBP
Queensmith£1,697 GBP

39 data points across 16 retailers

20 retailers£186 GBP to £922 GBP

Retailer 1
-
£172 GBP
$230 USD
Price last confirmed 13 days ago
Retailer 2
-
£172 GBP
$231 USD
View
Price last confirmed 33 days ago
A
Retailer 3
-
£186 GBP
$249 USD
View
Retailer 4
-
£200 GBP
$268 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
£207 GBP
$277 USD
View
Final sale: no returns
Retailer 6
-
£211 GBP
$283 USD
View
Price last confirmed 34 days ago
Retailer 7
-
£213 GBP
$285 USD
View
Price last confirmed 16 days ago
A
Retailer 8
-
£386 GBP
$517 USD
View
A
Retailer 9
-
£395 GBP
ZAR 8,554 ZAR
View
A
Retailer 10
-
£437 GBP
View
A
Retailer 11
-
£453 GBP
$607 USD
View
B+
Retailer 12
-
£536 GBP
A$1,105 AUD
View
Retailer 13
-
£685 GBP
$918 USD
View
Price last confirmed 13 days ago
Retailer 14
-
£687 GBP
$921 USD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
£742 GBP
$994 USD
View
B+
Retailer 16
-
£778 GBP
$1,042 USD
View
Retailer 17
-
£806 GBP
A$1,661 AUD
View
Price last confirmed 31 days ago
B
Retailer 18
-
£905 GBP
$1,213 USD
View
B
Retailer 19
-
£922 GBP
View
Most Expensive
Queensmith
LG836674985 · Oct 20
£1,697 GBP
View
Price last confirmed 11 days ago
19 more retailers have this diamond
Prices start from £186 GBPSave up to £736 GBP

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
£186 GBP