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Oval|Lab Grown|IGI

1.55ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG778639794

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG778639794

Diamond specifications and retailer prices

From £416 GBP
$554 USD
As of October 29, 2026
Save £2,986 GBP (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £3,402 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.55ct lab-grown oval diamond

This 1.55ct 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 LG778639794 or 778639794. Listed at 24 retailers as of October 29, 2026, with prices from £416 to £3,402, a £2,986 spread on the same certified stone. Brilliant Earth lists it at £3,402. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778639794
Dimensions9.23 × 6.54 × 4.09 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
9.23 mm6.54 mm1.55 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778639794
Side View
Table 59.0%Crown 35°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.5%

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: £3,402 GBP|Low: £466 GBP|High: £3,402 GBP|Avg: £1,319 GBP
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
October 30, 2026
Retailer 12£495 GBP
Retailer 5£516 GBP
Retailer 11£616 GBP
Retailer 8£680 GBP
Retailer 9£797 GBP
Retailer 2£805 GBP
Retailer 15£817 GBP
Retailer 7£865 GBP
Retailer 10£887 GBP
Retailer 16£1,159 GBP
Retailer 6£1,499 GBP
Retailer 17£1,662 GBP
Retailer 4£1,674 GBP
Retailer 3£1,891 GBP
Retailer 13£2,244 GBP
Retailer 14£2,816 GBP
Brilliant Earth£3,402 GBP

36 data points across 17 retailers

24 retailers£416 GBP to £3,402 GBP

A
Cheapest Retailer
-
£416 GBP
$554 USD
A
Retailer 2
-
£466 GBP
$621 USD
View
A
Retailer 3
-
£495 GBP
$659 USD
View
Final sale: no returns
A
Retailer 4
-
£516 GBP
$687 USD
View
Retailer 5
-
£516 GBP
$687 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£616 GBP
$820 USD
View
A
Retailer 7
-
£680 GBP
$905 USD
View
A
Retailer 8
-
£797 GBP
$1,062 USD
View
A
Retailer 9
-
£805 GBP
View
B+
Retailer 10
-
£817 GBP
€1,036 EUR
View
B+
Retailer 11
-
£865 GBP
$1,152 USD
View
B+
Retailer 12
-
£887 GBP
ZAR 19,088 ZAR
View
B+
Retailer 13
-
£1,159 GBP
$1,544 USD
View
B+
Retailer 14
-
£1,358 GBP
$1,808 USD
View
Retailer 15
-
£1,364 GBP
$1,816 USD
View
Price last confirmed 44 days ago
B+
Retailer 16
-
£1,499 GBP
View
B+
Retailer 17
-
£1,662 GBP
$2,213 USD
View
B+
Retailer 18
-
£1,674 GBP
$2,230 USD
View
B+
Retailer 19
-
£1,733 GBP
$2,308 USD
View
B
Retailer 20
-
£1,804 GBP
SGD 3,246 SGD
View
B
Retailer 21
-
£1,891 GBP
$2,518 USD
View
B
Retailer 22
-
£2,244 GBP
View
B
Retailer 23
-
£2,816 GBP
$3,750 USD
View
Most Expensive
B
Brilliant Earth
21417346A · Oct 29
£3,402 GBP
$4,530 USD
View
23 more retailers have this diamond
Prices start from £416 GBPSave up to £2,986 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
1.55ct Oval
£416 GBP