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Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

VG • E/VS1 • IGI LG837645898

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG837645898

Diamond specifications and retailer prices

From £172 GBP
$231 USD
As of October 29, 2026
Save £1,524 GBP (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,697 GBP at Queensmith · As of October 27, 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 very-good cut grade and certified by IGI LG837645898 or 837645898. Listed at 20 retailers as of October 27, 2026, with prices from £172 to £1,697, a £1,524 spread on the same certified stone. Queensmith lists it at £1,697. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.66
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837645898
Dimensions9.50 × 6.72 × 4.14 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
9.50 mm6.72 mm1.66 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837645898
Side View
Table 62.0%Crown 34.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,697 GBP|Low: £165 GBP|High: £1,697 GBP|Avg: £562 GBP
Queensmith
Retailer 2
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November 1, 2026
Retailer 6£172 GBP
Retailer 10£193 GBP
Retailer 7£200 GBP
Retailer 8£213 GBP
Retailer 9£213 GBP
Retailer 2£249 GBP
Retailer 17£361 GBP
Retailer 5£369 GBP
Retailer 13£402 GBP
Retailer 14£449 GBP
Retailer 12£462 GBP
Retailer 18£499 GBP
Retailer 21£686 GBP
Retailer 19£688 GBP
Retailer 3£725 GBP
Retailer 4£776 GBP
Retailer 16£795 GBP
Retailer 20£857 GBP
Retailer 11£868 GBP
Retailer 15£869 GBP
Queensmith£1,697 GBP

31 data points across 21 retailers

20 retailers£172 GBP to £1,697 GBP

A
Cheapest Retailer
-
£172 GBP
$231 USD
A
Retailer 2
-
£193 GBP
$258 USD
View
Final sale: no returns
A
Retailer 3
-
£200 GBP
$268 USD
View
A
Retailer 4
-
£213 GBP
$286 USD
View
A
Retailer 5
-
£213 GBP
$286 USD
View
A
Retailer 6
-
£249 GBP
View
B+
Retailer 7
-
£361 GBP
$484 USD
View
A
Retailer 8
-
£402 GBP
View
B+
Retailer 9
-
£449 GBP
$602 USD
View
B+
Retailer 10
-
£462 GBP
$619 USD
View
A
Retailer 11
-
£499 GBP
A$1,028 AUD
View
B+
Retailer 12
-
£686 GBP
$919 USD
View
B
Retailer 13
-
£688 GBP
$922 USD
View
B+
Retailer 14
-
£725 GBP
$972 USD
View
Retailer 15
-
£776 GBP
$1,040 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
£795 GBP
A$1,639 AUD
View
Retailer 17
-
£857 GBP
View
Price last confirmed 7 days ago
B
Retailer 18
-
£868 GBP
$1,163 USD
View
B
Retailer 19
-
£869 GBP
$1,164 USD
View
Most Expensive
B
Queensmith
LG837645898 · Oct 27
£1,697 GBP
View
19 more retailers have this diamond
Prices start from £172 GBPSave up to £1,524 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
£172 GBP