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Oval|Lab Grown|IGI

1.54ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG756574136

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG756574136

Diamond specifications and retailer prices

From £552 GBP
$741 USD
As of November 1, 2026
Save £2,406 GBP (81%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £4,054 GBP at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.54ct lab-grown oval diamond

This 1.54ct 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 LG756574136 or 756574136. Listed at 25 retailers as of November 1, 2026, with a 436% 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

1.54
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG756574136
Dimensions9.14 × 6.49 × 4.09 mm
L/W Ratio1.41
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
9.14 mm6.49 mm1.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG756574136
Side View
Table 60.0%Crown 34.2°Girdle: Slightly ThickPavilion 41.3°Culet: NoneDepth 62.9%

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: Nov 1
Current: £4,054 GBP|Low: £647 GBP|High: £4,054 GBP|Avg: £1,639 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
November 2, 2026
Retailer 7£647 GBP
Retailer 9£704 GBP
Retailer 3£820 GBP
Retailer 11£885 GBP
Retailer 8£915 GBP
Retailer 6£959 GBP
Retailer 2£1,051 GBP
Retailer 5£1,293 GBP
Retailer 4£1,849 GBP
Retailer 10£2,423 GBP
Retailer 12£2,958 GBP
Brilliant Earth£4,054 GBP

39 data points across 12 retailers

25 retailers£552 GBP to £2,958 GBP

Retailer 1
-
£493 GBP
$662 USD
Price last confirmed 22 days ago
Retailer 2
-
£537 GBP
$720 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
£552 GBP
$741 USD
View
Final sale: no returns
Retailer 4
-
£572 GBP
$768 USD
View
Price last confirmed 21 days ago
Retailer 5
-
£572 GBP
$768 USD
View
Price last confirmed 31 days ago
A
Retailer 6
-
£647 GBP
View
A
Retailer 7
-
£704 GBP
$945 USD
View
B+
Retailer 8
-
£754 GBP
$1,012 USD
View
B+
Retailer 9
-
£820 GBP
$1,100 USD
View
B+
Retailer 10
-
£870 GBP
$1,168 USD
View
B+
Retailer 11
-
£885 GBP
A$1,828 AUD
View
B+
Retailer 12
-
£915 GBP
View
B+
Retailer 13
-
£959 GBP
€1,226 EUR
View
B+
Retailer 14
-
£1,051 GBP
ZAR 22,789 ZAR
View
B+
Retailer 15
-
£1,293 GBP
$1,735 USD
View
Retailer 16
-
£1,609 GBP
$2,159 USD
View
Price last confirmed 26 days ago
B
Retailer 17
-
£1,783 GBP
View
B+
Retailer 18
-
£1,849 GBP
$2,481 USD
View
B
Retailer 19
-
£1,928 GBP
SGD 3,497 SGD
View
B
Retailer 20
-
£1,952 GBP
$2,619 USD
View
B
Retailer 21
-
£1,974 GBP
$2,649 USD
View
B
Retailer 22
-
£1,988 GBP
$2,668 USD
View
B
Retailer 23
-
£2,423 GBP
View
B
Retailer 24
-
£2,958 GBP
$3,970 USD
View
Most Expensive
Brilliant Earth
18561910A · Nov 2
£4,054 GBP
$5,440 USD
View
Price under review
24 more retailers have this diamond
Prices start from £552 GBPSave up to £2,406 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
1.54ct Oval
£552 GBP