CaratHunter
Plans
Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG768622672

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG768622672

Diamond specifications and retailer prices

From £193 GBP
$259 USD
As of October 29, 2026
Save £1,322 GBP (87%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,515 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG768622672 or 768622672. Listed at 20 retailers as of October 29, 2026, with prices from £193 to £1,515, a £1,322 spread on the same certified stone. Brilliant Earth lists it at £1,515. 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 angle34.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768622672
Dimensions9.47 × 6.74 × 4.12 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.47 mm6.74 mm1.66 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768622672
Side View
Table 59.0%Crown 34.5°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 61.1%

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: £1,515 GBP|Low: £187 GBP|High: £1,590 GBP|Avg: £550 GBP|-4.7%
Brilliant Earth
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
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 16£193 GBP
Retailer 3£215 GBP
Retailer 10£224 GBP
Retailer 11£237 GBP
Retailer 18£240 GBP
Retailer 17£358 GBP
Retailer 5£399 GBP
Retailer 7£411 GBP
Retailer 13£422 GBP
Retailer 19£440 GBP
Retailer 20£456 GBP
Retailer 14£457 GBP
Retailer 9£553 GBP
Retailer 15£735 GBP
Retailer 6£769 GBP
Retailer 4£808 GBP
Retailer 8£933 GBP
Retailer 2£941 GBP
Retailer 12£951 GBP
Brilliant Earth£1,515 GBP

33 data points across 20 retailers

20 retailers£193 GBP to £1,515 GBP

A
Cheapest Retailer
-
£193 GBP
$259 USD
A
Retailer 2
-
£215 GBP
$288 USD
View
Final sale: no returns
A
Retailer 3
-
£224 GBP
$300 USD
View
A
Retailer 4
-
£237 GBP
$318 USD
View
A
Retailer 5
-
£240 GBP
$321 USD
View
A
Retailer 6
-
£358 GBP
$480 USD
View
A
Retailer 7
-
£399 GBP
$535 USD
View
A
Retailer 8
-
£411 GBP
ZAR 8,899 ZAR
View
A
Retailer 9
-
£422 GBP
€538 EUR
View
A
Retailer 10
-
£440 GBP
$589 USD
View
A
Retailer 11
-
£456 GBP
$611 USD
View
A
Retailer 12
-
£457 GBP
View
B+
Retailer 13
-
£553 GBP
A$1,139 AUD
View
B+
Retailer 14
-
£735 GBP
$985 USD
View
B+
Retailer 15
-
£769 GBP
$1,031 USD
View
B+
Retailer 16
-
£808 GBP
$1,082 USD
View
B
Retailer 17
-
£933 GBP
View
B
Retailer 18
-
£941 GBP
$1,261 USD
View
B
Retailer 19
-
£951 GBP
View
Most Expensive
B
Brilliant Earth
18094821A · Oct 30
£1,515 GBP
$2,030 USD
View
19 more retailers have this diamond
Prices start from £193 GBPSave up to £1,322 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
£193 GBP