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Marquise|Lab Grown|IGI

1.54ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG638402405

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG638402405

Diamond specifications and retailer prices

From £551 GBP
As of November 4, 2026
Save £3,345 GBP (86%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: £3,896 GBP at Do Amore Diamonds · As of November 5, 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 LG638402405 or 638402405. Listed at 32 retailers as of November 4, 2026, with prices from £551 to £3,896, a £3,345 spread on the same certified stone. Do Amore Diamonds lists it at £3,896. 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°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG638402405
Dimensions11.95 × 6.10 × 3.76 mm
L/W Ratio1.96
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
11.95 mm6.10 mm1.54 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG638402405
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.6%

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: Nov 4
Current: £3,896 GBP|Low: £441 GBP|High: £3,919 GBP|Avg: £1,462 GBP|-0.6%
Do Amore Diamonds
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November 5, 2026
Retailer 19£441 GBP
Retailer 18£547 GBP
Retailer 5£551 GBP
Retailer 13£641 GBP
Retailer 17£653 GBP
Retailer 15£704 GBP
Retailer 20£739 GBP
Retailer 23£846 GBP
Retailer 2£884 GBP
Retailer 11£925 GBP
Retailer 12£1,029 GBP
Retailer 6£1,037 GBP
Retailer 25£1,350 GBP
Retailer 9£1,406 GBP
Retailer 4£1,425 GBP
Retailer 24£1,580 GBP
Retailer 16£1,745 GBP
Retailer 22£1,750 GBP
Retailer 26£1,799 GBP
Retailer 14£1,967 GBP
Retailer 21£2,024 GBP
Retailer 10£2,037 GBP
Retailer 3£2,141 GBP
Retailer 7£2,379 GBP
Retailer 8£2,590 GBP
Do Amore Diamonds£3,896 GBP

33 data points across 26 retailers

32 retailers£551 GBP to £3,896 GBP

Retailer 1
-
£441 GBP
Price last confirmed 28 days ago
Retailer 2
-
£494 GBP
View
Price last confirmed 36 days ago
Retailer 3
-
£537 GBP
View
Price last confirmed 37 days ago
Retailer 4
-
£547 GBP
View
Price last confirmed 28 days ago
Retailer 5
-
£547 GBP
View
Price last confirmed 26 days ago
A
Retailer 6
-
£551 GBP
View
Final sale: no returns
Retailer 7
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£565 GBP
View
Price last confirmed 37 days ago
A
Retailer 8
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£641 GBP
View
A
Retailer 9
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£653 GBP
View
A
Retailer 10
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£704 GBP
View
A
Retailer 11
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£739 GBP
View
A
Retailer 12
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£846 GBP
View
A
Retailer 13
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£884 GBP
View
A
Retailer 14
-
£925 GBP
View
A
Retailer 15
-
£1,029 GBP
View
A
Retailer 16
-
£1,037 GBP
View
B+
Retailer 17
-
£1,350 GBP
View
B+
Retailer 18
-
£1,406 GBP
View
B+
Retailer 19
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£1,425 GBP
View
B+
Retailer 20
-
£1,580 GBP
View
Retailer 21
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£1,588 GBP
View
Price last confirmed 26 days ago
B+
Retailer 22
-
£1,745 GBP
View
B+
Retailer 23
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£1,750 GBP
View
Retailer 24
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£1,779 GBP
View
Price last confirmed 36 days ago
B+
Retailer 25
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£1,799 GBP
View
Retailer 26
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£1,967 GBP
View
Price last confirmed 8 days ago
B+
Retailer 27
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£2,024 GBP
View
B+
Retailer 28
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£2,037 GBP
View
B
Retailer 29
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£2,141 GBP
View
B+
Retailer 30
-
£2,379 GBP
View
B+
Retailer 31
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£2,590 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C739093E5 · Nov 5
£3,896 GBP
$5,260 USD
View
31 more retailers have this diamond
Prices start from £551 GBPSave up to £3,345 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
£551 GBP