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Oval|Lab Grown|IGI

1.66ct E VS1 Oval Lab Grown Diamond

ID • E/VS1 • IGI LG818650547

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818650547

Diamond specifications and retailer prices

From £203 GBP
$272 USD
As of October 30, 2026
Save £792 GBP (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £995 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

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 LG818650547 or 818650547. Listed at 20 retailers as of October 30, 2026, with prices from £203 to £995, a £792 spread on the same certified stone. Reve Diamonds lists it at £995. 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 angle38.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818650547
Dimensions9.68 × 6.28 × 4.11 mm
L/W Ratio1.54
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.68 mm6.28 mm1.66 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818650547
Side View
Table 62.0%Crown 38.4°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 65.4%

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 30
Current: £428 GBP|Low: £203 GBP|High: £1,000 GBP|Avg: £604 GBP|+3.4%
Retailer 1
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
Reve Diamonds
October 31, 2026
Retailer 3£203 GBP
Retailer 15£248 GBP
Retailer 10£264 GBP
Retailer 9£305 GBP
Retailer 13£374 GBP
Retailer 11£387 GBP
Retailer 1£428 GBP
Retailer 14£452 GBP
Retailer 12£525 GBP
Retailer 2£563 GBP
Retailer 4£763 GBP
Retailer 7£795 GBP
Retailer 8£887 GBP
Retailer 5£908 GBP
Retailer 16£917 GBP
Retailer 6£925 GBP
Reve Diamonds£995 GBP

39 data points across 17 retailers

20 retailers£203 GBP to £995 GBP

Retailer 1
-
£184 GBP
$246 USD
Price last confirmed 38 days ago
A
Retailer 2
-
£203 GBP
$272 USD
View
Final sale: no returns
Retailer 3
-
£213 GBP
$285 USD
View
Price last confirmed 36 days ago
Retailer 4
-
£225 GBP
$301 USD
View
Price last confirmed 34 days ago
A
Retailer 5
-
£248 GBP
HK$2,600 HKD
View
A
Retailer 6
-
£264 GBP
View
B+
Retailer 7
-
£305 GBP
$408 USD
View
A
Retailer 8
-
£374 GBP
€477 EUR
View
A
Retailer 9
-
£387 GBP
ZAR 8,382 ZAR
View
A
Retailer 10
-
£428 GBP
View
A
Retailer 11
-
£452 GBP
$605 USD
View
A
Retailer 12
-
£525 GBP
A$1,083 AUD
View
B+
Retailer 13
-
£563 GBP
$755 USD
View
Retailer 14
-
£732 GBP
$981 USD
View
Price last confirmed 34 days ago
B+
Retailer 15
-
£763 GBP
$1,023 USD
View
Retailer 16
-
£795 GBP
$1,065 USD
View
Price last confirmed 33 days ago
B
Retailer 17
-
£908 GBP
View
B
Retailer 18
-
£917 GBP
$1,229 USD
View
B
Retailer 19
-
£925 GBP
$1,240 USD
View
Most Expensive
B
Reve Diamonds
61110BE7F · Oct 30
£995 GBP
$1,333 USD
View
19 more retailers have this diamond
Prices start from £203 GBPSave up to £792 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
£203 GBP