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Oval|Lab Grown|IGI

1.66ct E VVS1 Oval Lab Grown Diamond

EX • E/VVS1 • IGI LG787623981

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG787623981

Diamond specifications and retailer prices

From £197 GBP
$264 USD
As of October 29, 2026
Save £1,131 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,414 GBP at Novita Diamonds · As of July 28, 2026
View at Novita 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG787623981 or 787623981. Listed at 21 retailers as of October 29, 2026, with a 574% 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787623981
Dimensions9.54 × 6.73 × 4.12 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.54 mm6.73 mm1.66 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787623981
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 61.2%

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: £463 GBP|Low: £197 GBP|High: £1,366 GBP|Avg: £660 GBP|+3.5%
Retailer 1
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Retailer 20
November 1, 2026
Retailer 6£197 GBP
Retailer 16£219 GBP
Retailer 10£245 GBP
Retailer 14£397 GBP
Retailer 8£406 GBP
Retailer 2£407 GBP
Retailer 18£419 GBP
Retailer 15£444 GBP
Retailer 1£463 GBP
Retailer 13£549 GBP
Retailer 20£567 GBP
Retailer 5£638 GBP
Retailer 17£822 GBP
Retailer 11£887 GBP
Retailer 12£959 GBP
Retailer 3£981 GBP
Retailer 9£989 GBP
Retailer 19£1,042 GBP
Retailer 4£1,105 GBP
Retailer 7£1,328 GBP

36 data points across 20 retailers

21 retailers£197 GBP to £1,328 GBP

A
Cheapest Retailer
-
£197 GBP
$264 USD
A
Retailer 2
-
£219 GBP
$294 USD
View
Final sale: no returns
A
Retailer 3
-
£245 GBP
$328 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£397 GBP
€506 EUR
View
A
Retailer 5
-
£406 GBP
$544 USD
View
A
Retailer 6
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£407 GBP
$545 USD
View
A
Retailer 7
-
£419 GBP
ZAR 9,072 ZAR
View
A
Retailer 8
-
£444 GBP
$595 USD
View
A
Retailer 9
-
£463 GBP
View
B+
Retailer 10
-
£549 GBP
$735 USD
View
B+
Retailer 11
-
£567 GBP
A$1,169 AUD
View
B+
Retailer 12
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£638 GBP
$855 USD
View
B+
Retailer 13
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£822 GBP
$1,102 USD
View
B
Retailer 14
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£893 GBP
$1,197 USD
View
B
Retailer 15
-
£959 GBP
$1,285 USD
View
B+
Retailer 16
-
£981 GBP
View
B
Retailer 17
-
£1,009 GBP
$1,352 USD
View
B
Retailer 18
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£1,042 GBP
$1,396 USD
View
B
Retailer 19
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£1,105 GBP
$1,480 USD
View
B
Retailer 20
-
£1,328 GBP
$1,780 USD
View
Most Expensive
Novita Diamonds
cert_787623981 · Jul 28
£1,414 GBP
A$2,915 AUD
View
Price last confirmed 96 days ago
20 more retailers have this diamond
Prices start from £197 GBPSave up to £1,131 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
£197 GBP