CaratHunter
Plans
Oval|Lab Grown|IGI

1.55ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG788621514

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG788621514

Diamond specifications and retailer prices

From £497 GBP
$666 USD
As of October 29, 2026
Save £1,935 GBP (80%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £4,082 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788621514 or 788621514. Listed at 24 retailers as of October 26, 2026, with a 389% 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

1.55
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788621514
Dimensions9.44 × 6.58 × 4.02 mm
L/W Ratio1.43
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
9.44 mm6.58 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788621514
Side View
Table 62.0%Crown 33°Girdle: MediumPavilion 41°Culet: NoneDepth 61.1%

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: £4,082 GBP|Low: £477 GBP|High: £4,082 GBP|Avg: £1,300 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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 3£497 GBP
Retailer 21£541 GBP
Retailer 9£556 GBP
Retailer 6£577 GBP
Retailer 7£577 GBP
Retailer 13£654 GBP
Retailer 18£713 GBP
Retailer 14£759 GBP
Retailer 11£827 GBP
Retailer 16£892 GBP
Retailer 15£922 GBP
Retailer 20£967 GBP
Retailer 17£1,060 GBP
Retailer 8£1,290 GBP
Retailer 5£1,621 GBP
Retailer 2£1,864 GBP
Retailer 12£1,945 GBP
Retailer 10£2,001 GBP
Retailer 19£2,432 GBP
Retailer 4£3,008 GBP
Brilliant Earth£4,082 GBP

40 data points across 21 retailers

24 retailers£497 GBP to £2,432 GBP

A
Cheapest Retailer
-
£497 GBP
$666 USD
A
Retailer 2
-
£541 GBP
$725 USD
View
A
Retailer 3
-
£556 GBP
$745 USD
View
Final sale: no returns
Retailer 4
-
£577 GBP
$773 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
£577 GBP
$773 USD
View
A
Retailer 6
-
£654 GBP
View
A
Retailer 7
-
£713 GBP
$955 USD
View
B+
Retailer 8
-
£759 GBP
$1,017 USD
View
B+
Retailer 9
-
£827 GBP
$1,108 USD
View
B+
Retailer 10
-
£882 GBP
$1,182 USD
View
B+
Retailer 11
-
£892 GBP
A$1,838 AUD
View
B+
Retailer 12
-
£922 GBP
View
B+
Retailer 13
-
£967 GBP
€1,234 EUR
View
B+
Retailer 14
-
£1,060 GBP
ZAR 22,941 ZAR
View
B+
Retailer 15
-
£1,290 GBP
$1,729 USD
View
B
Retailer 16
-
£1,621 GBP
$2,172 USD
View
B
Retailer 17
-
£1,797 GBP
View
B+
Retailer 18
-
£1,864 GBP
$2,497 USD
View
B
Retailer 19
-
£1,945 GBP
SGD 3,521 SGD
View
B
Retailer 20
-
£1,989 GBP
$2,665 USD
View
B
Retailer 21
-
£2,001 GBP
$2,681 USD
View
B
Retailer 22
-
£2,432 GBP
View
Retailer 23
-
£3,008 GBP
$4,030 USD
View
Price last confirmed 9 days ago
Most Expensive
Brilliant Earth
20046393A · Oct 29
£4,082 GBP
$5,470 USD
View
Price under review
23 more retailers have this diamond
Prices start from £497 GBPSave up to £1,935 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
£497 GBP