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Oval|Lab Grown|IGI

1.71ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG784645919

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG784645919

Diamond specifications and retailer prices

From £304 GBP
$405 USD
As of October 26, 2026
Save £2,399 GBP (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,939 GBP at Rare Carat · As of September 9, 2026
View at Rare Carat

About this 1.71ct lab-grown oval diamond

This 1.71ct lab-grown oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784645919 or 784645919. Listed at 12 retailers as of October 26, 2026, with a 789% 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

1.71
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784645919
Dimensions11.21 × 6.33 × 3.70 mm
L/W Ratio1.77
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
11.21 mm6.33 mm1.71 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784645919
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 38.2°Culet: NoneDepth 58.5%

Caratlytics Score

How it works →
A+
Exceptional
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 26
Current: £2,939 GBP|Low: £304 GBP|High: £4,078 GBP|Avg: £1,432 GBP
Rare Carat
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
October 28, 2026
Retailer 9£304 GBP
Retailer 16£341 GBP
Retailer 4£458 GBP
Retailer 10£497 GBP
Retailer 12£597 GBP
Retailer 2£627 GBP
Retailer 5£803 GBP
Retailer 3£868 GBP
Retailer 7£888 GBP
Retailer 13£1,058 GBP
Retailer 15£1,338 GBP
Retailer 14£1,532 GBP
Retailer 11£2,703 GBP
Rare Carat£2,939 GBP
Retailer 8£3,108 GBP
Retailer 6£4,078 GBP

29 data points across 16 retailers

12 retailers£304 GBP to £2,703 GBP

A+
Cheapest Retailer
-
£304 GBP
$405 USD
A
Retailer 2
-
£341 GBP
$454 USD
View
A
Retailer 3
-
£458 GBP
$610 USD
View
Final sale: no returns
A
Retailer 4
-
£497 GBP
$662 USD
View
A
Retailer 5
-
£597 GBP
$795 USD
View
A
Retailer 6
-
£627 GBP
$835 USD
View
B+
Retailer 7
-
£868 GBP
A$1,778 AUD
View
B+
Retailer 8
-
£1,058 GBP
$1,409 USD
View
B+
Retailer 9
-
£1,338 GBP
$1,782 USD
View
B+
Retailer 10
-
£1,532 GBP
View
B
Retailer 11
-
£2,703 GBP
$3,600 USD
View
Most Expensive
B
Rare Carat
P84I-33 · Sep 9
£2,939 GBP
$3,914 USD
View
Price last confirmed 50 days ago
11 more retailers have this diamond
Prices start from £304 GBPSave up to £2,399 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+
1.71ct Oval
£304 GBP