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Marquise|Lab Grown|IGI

1.54ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG780661865

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780661865

Diamond specifications and retailer prices

From £535 GBP
$717 USD
As of October 30, 2026
Save £4,219 GBP (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £4,754 GBP at Do Amore Diamonds · As of October 31, 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780661865 or 780661865. Listed at 16 retailers as of October 30, 2026, with prices from £535 to £4,754, a £4,219 spread on the same certified stone. Do Amore Diamonds lists it at £4,754. 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 angle33.5°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780661865
Dimensions11.91 × 6.05 × 3.72 mm
L/W Ratio1.97
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
11.91 mm6.05 mm1.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780661865
Side View
Table 58.0%Crown 33.5°Girdle: Slightly ThickPavilion 38.8°Culet: NoneDepth 61.5%

Caratlytics Score

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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: Oct 30
Current: £4,754 GBP|Low: £535 GBP|High: £6,000 GBP|Avg: £1,773 GBP|-20.8%
Do Amore Diamonds
Retailer 2
Retailer 3
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Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 15
Retailer 16
November 1, 2026
Retailer 12£535 GBP
Retailer 4£582 GBP
Retailer 7£702 GBP
Retailer 14£734 GBP
Retailer 10£754 GBP
Retailer 8£757 GBP
Retailer 13£1,008 GBP
Retailer 9£1,152 GBP
Retailer 16£1,289 GBP
Retailer 15£1,529 GBP
Retailer 5£1,821 GBP
Retailer 3£1,927 GBP
Retailer 11£2,336 GBP
Retailer 2£2,569 GBP
Retailer 6£2,728 GBP
Do Amore Diamonds£4,754 GBP

33 data points across 16 retailers

16 retailers£535 GBP to £4,754 GBP

A+
Cheapest Retailer
-
£535 GBP
$717 USD
A
Retailer 2
-
£582 GBP
$780 USD
View
A
Retailer 3
-
£702 GBP
$940 USD
View
A
Retailer 4
-
£734 GBP
$983 USD
View
A
Retailer 5
-
£754 GBP
$1,010 USD
View
A
Retailer 6
-
£757 GBP
$1,014 USD
View
Final sale: no returns
A
Retailer 7
-
£1,008 GBP
$1,351 USD
View
A
Retailer 8
-
£1,152 GBP
€1,470 EUR
View
B+
Retailer 9
-
£1,289 GBP
A$2,658 AUD
View
B+
Retailer 10
-
£1,529 GBP
$2,049 USD
View
B+
Retailer 11
-
£1,821 GBP
$2,440 USD
View
B
Retailer 12
-
£1,927 GBP
$2,582 USD
View
B+
Retailer 13
-
£2,336 GBP
$3,130 USD
View
B+
Retailer 14
-
£2,569 GBP
View
B
Retailer 15
-
£2,728 GBP
$3,655 USD
View
Most Expensive
B
Do Amore Diamonds
27-2887D02AF · Oct 31
£4,754 GBP
$6,370 USD
View
15 more retailers have this diamond
Prices start from £535 GBPSave up to £4,219 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
£535 GBP