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Marquise|Lab Grown|IGI

1.54ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG741594940

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG741594940

Diamond specifications and retailer prices

From £454 GBP
As of November 4, 2026
Save £3,583 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,037 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.54ct lab-grown marquise diamond

This 1.54ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG741594940 or 741594940. Listed at 18 retailers as of November 4, 2026, with prices from £454 to £4,037, a £3,583 spread on the same certified stone. Do Amore Diamonds lists it at £4,037. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741594940
Dimensions11.94 × 6.13 × 3.59 mm
L/W Ratio1.95
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
11.94 mm6.13 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741594940
Side View
Table 60.0%Crown 34.5°Girdle: MED-STKPavilion 38.1°Culet: NoneDepth 58.6%

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: Nov 4
Current: £4,037 GBP|Low: £445 GBP|High: £4,252 GBP|Avg: £1,466 GBP|-5.1%
Do Amore Diamonds
Retailer 2
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Retailer 18
November 5, 2026
Retailer 14£454 GBP
Retailer 4£509 GBP
Retailer 10£544 GBP
Retailer 16£652 GBP
Retailer 6£656 GBP
Retailer 9£674 GBP
Retailer 15£864 GBP
Retailer 13£947 GBP
Retailer 8£990 GBP
Retailer 17£1,398 GBP
Retailer 11£1,448 GBP
Retailer 3£1,570 GBP
Retailer 18£1,636 GBP
Retailer 5£1,967 GBP
Retailer 12£2,037 GBP
Retailer 2£2,444 GBP
Retailer 7£2,632 GBP
Do Amore Diamonds£4,037 GBP

31 data points across 18 retailers

18 retailers£454 GBP to £4,037 GBP

A+
Cheapest Retailer
-
£454 GBP
A
Retailer 2
-
£509 GBP
View
A
Retailer 3
-
£544 GBP
View
Final sale: no returns
A
Retailer 4
-
£652 GBP
View
A
Retailer 5
-
£656 GBP
View
A
Retailer 6
-
£674 GBP
View
A
Retailer 7
-
£864 GBP
View
A
Retailer 8
-
£947 GBP
View
A
Retailer 9
-
£990 GBP
View
B+
Retailer 10
-
£1,398 GBP
View
B+
Retailer 11
-
£1,448 GBP
View
B+
Retailer 12
-
£1,570 GBP
View
B+
Retailer 13
-
£1,636 GBP
View
Retailer 14
-
£1,967 GBP
View
Price last confirmed 8 days ago
B+
Retailer 15
-
£2,037 GBP
View
B
Retailer 16
-
£2,444 GBP
View
Retailer 17
-
£2,632 GBP
View
Price last confirmed 28 days ago
Most Expensive
B
Do Amore Diamonds
27-4DE50AFBE · Nov 4
£4,037 GBP
$5,450 USD
View
17 more retailers have this diamond
Prices start from £454 GBPSave up to £3,583 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 Marquise
£454 GBP