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Marquise|Lab Grown|IGI

1.54ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG787656876

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG787656876

Diamond specifications and retailer prices

From £762 GBP
$1,021 USD
As of October 30, 2026
Save £2,932 GBP (79%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £3,694 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG787656876 or 787656876. Listed at 24 retailers as of October 30, 2026, with prices from £762 to £3,694, a £2,932 spread on the same certified stone. Brilliant Earth lists it at £3,694. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787656876
Dimensions11.71 × 6.11 × 3.85 mm
L/W Ratio1.92
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
11.71 mm6.11 mm1.54 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787656876
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.0%

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: Oct 30
Current: £3,694 GBP|Low: £731 GBP|High: £3,694 GBP|Avg: £1,671 GBP
Brilliant Earth
Retailer 2
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
November 1, 2026
Retailer 4£762 GBP
Retailer 15£829 GBP
Retailer 3£884 GBP
Retailer 16£884 GBP
Retailer 14£966 GBP
Retailer 9£999 GBP
Retailer 13£1,251 GBP
Retailer 7£1,265 GBP
Retailer 10£1,275 GBP
Retailer 12£1,625 GBP
Retailer 5£1,658 GBP
Retailer 6£1,687 GBP
Retailer 11£2,396 GBP
Retailer 8£2,610 GBP
Retailer 2£2,999 GBP
Brilliant Earth£3,694 GBP

31 data points across 16 retailers

24 retailers£762 GBP to £3,694 GBP

A
Cheapest Retailer
-
£762 GBP
$1,021 USD
A
Retailer 2
-
£829 GBP
$1,111 USD
View
A
Retailer 3
-
£854 GBP
$1,144 USD
View
Final sale: no returns
Retailer 4
-
£884 GBP
$1,185 USD
View
Price last confirmed 15 days ago
A
Retailer 5
-
£884 GBP
$1,185 USD
View
A
Retailer 6
-
£964 GBP
$1,291 USD
View
A
Retailer 7
-
£966 GBP
$1,295 USD
View
A
Retailer 8
-
£999 GBP
View
A
Retailer 9
-
£1,036 GBP
$1,388 USD
View
A
Retailer 10
-
£1,251 GBP
A$2,578 AUD
View
A
Retailer 11
-
£1,265 GBP
$1,695 USD
View
A
Retailer 12
-
£1,275 GBP
View
B+
Retailer 13
-
£1,625 GBP
ZAR 35,182 ZAR
View
B+
Retailer 14
-
£1,658 GBP
$2,221 USD
View
B+
Retailer 15
-
£1,687 GBP
$2,260 USD
View
B
Retailer 16
-
£2,396 GBP
€3,058 EUR
View
B
Retailer 17
-
£2,445 GBP
View
B+
Retailer 18
-
£2,610 GBP
$3,497 USD
View
B
Retailer 19
-
£2,742 GBP
$3,674 USD
View
B
Retailer 20
-
£2,847 GBP
$3,815 USD
View
B
Retailer 21
-
£2,965 GBP
SGD 5,368 SGD
View
B
Retailer 22
-
£2,999 GBP
View
B
Retailer 23
-
£3,084 GBP
$4,133 USD
View
Most Expensive
B
Brilliant Earth
19705479A · Oct 31
£3,694 GBP
$4,950 USD
View
23 more retailers have this diamond
Prices start from £762 GBPSave up to £2,932 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
£762 GBP