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Oval|Lab Grown|IGI

1.66ct E VVS1 Oval Lab Grown Diamond

ID • E/VVS1 • IGI LG825654007

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG825654007

Diamond specifications and retailer prices

From £207 GBP
$277 USD
As of October 29, 2026
Save £1,502 GBP (88%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,709 GBP at Brilliant Earth · As of October 31, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG825654007 or 825654007. Listed at 25 retailers as of October 29, 2026, with prices from £207 to £1,709, a £1,502 spread on the same certified stone. Brilliant Earth lists it at £1,709. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825654007
Dimensions9.65 × 6.44 × 4.15 mm
L/W Ratio1.50
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.65 mm6.44 mm1.66 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825654007
Side View
Table 62.0%Crown 33.7°Girdle: Slightly ThickPavilion 42.1°Culet: NoneDepth 64.4%

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: £1,709 GBP|Low: £199 GBP|High: £1,761 GBP|Avg: £640 GBP|-3.0%
Brilliant Earth
Retailer 2
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Retailer 20
November 1, 2026
Retailer 5£207 GBP
Retailer 8£231 GBP
Retailer 11£240 GBP
Retailer 9£256 GBP
Retailer 4£272 GBP
Retailer 15£343 GBP
Retailer 19£373 GBP
Retailer 20£403 GBP
Retailer 18£440 GBP
Retailer 13£451 GBP
Retailer 12£511 GBP
Retailer 17£595 GBP
Retailer 14£613 GBP
Retailer 10£823 GBP
Retailer 6£985 GBP
Retailer 16£1,025 GBP
Retailer 2£1,026 GBP
Retailer 7£1,073 GBP
Retailer 3£1,108 GBP
Brilliant Earth£1,709 GBP

40 data points across 20 retailers

25 retailers£207 GBP to £1,709 GBP

A
Cheapest Retailer
-
£207 GBP
$277 USD
A
Retailer 2
-
£231 GBP
$309 USD
View
Final sale: no returns
A
Retailer 3
-
£240 GBP
$321 USD
View
Retailer 4
-
£256 GBP
$343 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£256 GBP
$343 USD
View
Retailer 6
-
£272 GBP
View
Price last confirmed 15 days ago
B+
Retailer 7
-
£343 GBP
$460 USD
View
A
Retailer 8
-
£373 GBP
$500 USD
View
A
Retailer 9
-
£403 GBP
€514 EUR
View
A
Retailer 10
-
£440 GBP
ZAR 9,520 ZAR
View
A
Retailer 11
-
£451 GBP
View
A
Retailer 12
-
£511 GBP
$685 USD
View
B+
Retailer 13
-
£540 GBP
$723 USD
View
B+
Retailer 14
-
£552 GBP
$739 USD
View
B+
Retailer 15
-
£595 GBP
A$1,227 AUD
View
B+
Retailer 16
-
£613 GBP
$822 USD
View
B+
Retailer 17
-
£823 GBP
$1,103 USD
View
B+
Retailer 18
-
£861 GBP
$1,153 USD
View
B
Retailer 19
-
£985 GBP
$1,320 USD
View
B+
Retailer 20
-
£1,025 GBP
A$2,112 AUD
View
B
Retailer 21
-
£1,026 GBP
View
B
Retailer 22
-
£1,063 GBP
$1,424 USD
View
B
Retailer 23
-
£1,073 GBP
$1,438 USD
View
B+
Retailer 24
-
£1,108 GBP
$1,485 USD
View
Most Expensive
B
Brilliant Earth
21202258A · Oct 31
£1,709 GBP
$2,290 USD
View
24 more retailers have this diamond
Prices start from £207 GBPSave up to £1,502 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
£207 GBP