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Marquise|Lab Grown|IGI

1.54ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG754595657

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754595657

Diamond specifications and retailer prices

From £581 GBP
$778 USD
As of October 30, 2026
Save £2,108 GBP (78%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £2,688 GBP at With Clarity · As of October 31, 2026
View at With Clarity

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754595657 or 754595657. Listed at 30 retailers as of October 30, 2026, with prices from £581 to £2,688, a £2,108 spread on the same certified stone. With Clarity lists it at £2,688. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754595657
Dimensions11.76 × 6.00 × 3.80 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
11.76 mm6.00 mm1.54 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754595657
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.3%

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: £894 GBP|Low: £464 GBP|High: £2,366 GBP|Avg: £1,282 GBP|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 5£464 GBP
Retailer 16£581 GBP
Retailer 10£601 GBP
Retailer 2£659 GBP
Retailer 9£731 GBP
Retailer 6£813 GBP
Retailer 14£883 GBP
Retailer 1£894 GBP
Retailer 15£989 GBP
Retailer 12£1,340 GBP
Retailer 4£1,428 GBP
Retailer 3£1,791 GBP
Retailer 7£1,836 GBP
Retailer 11£1,846 GBP
Retailer 8£1,914 GBP
Retailer 13£1,985 GBP
Retailer 17£2,270 GBP

41 data points across 17 retailers

30 retailers£581 GBP to £2,688 GBP

Retailer 1
-
£464 GBP
$622 USD
Price last confirmed 25 days ago
Retailer 2
-
£464 GBP
$622 USD
View
Price last confirmed 33 days ago
Retailer 3
-
£519 GBP
$696 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£568 GBP
$761 USD
View
Price last confirmed 34 days ago
Retailer 5
-
£575 GBP
$771 USD
View
Price last confirmed 30 days ago
Retailer 6
-
£575 GBP
$771 USD
View
Price last confirmed 22 days ago
A
Retailer 7
-
£581 GBP
$778 USD
View
Final sale: no returns
A
Retailer 8
-
£601 GBP
$805 USD
View
A
Retailer 9
-
£659 GBP
HK$6,900 HKD
View
A
Retailer 10
-
£731 GBP
$979 USD
View
A
Retailer 11
-
£813 GBP
$1,090 USD
View
A
Retailer 12
-
£868 GBP
$1,163 USD
View
A
Retailer 13
-
£883 GBP
€1,127 EUR
View
A
Retailer 14
-
£894 GBP
View
A
Retailer 15
-
£989 GBP
ZAR 21,405 ZAR
View
B+
Retailer 16
-
£1,340 GBP
A$2,763 AUD
View
Retailer 17
-
£1,365 GBP
$1,830 USD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
£1,428 GBP
$1,913 USD
View
B+
Retailer 19
-
£1,514 GBP
$2,028 USD
View
Retailer 20
-
£1,514 GBP
$2,028 USD
View
Price last confirmed 32 days ago
Retailer 21
-
£1,514 GBP
$2,028 USD
View
Price last confirmed 22 days ago
B+
Retailer 22
-
£1,791 GBP
$2,400 USD
View
B+
Retailer 23
-
£1,836 GBP
$2,460 USD
View
B+
Retailer 24
-
£1,846 GBP
A$3,806 AUD
View
B+
Retailer 25
-
£1,859 GBP
$2,490 USD
View
B+
Retailer 26
-
£1,895 GBP
$2,539 USD
View
B
Retailer 27
-
£1,914 GBP
SGD 3,466 SGD
View
B+
Retailer 28
-
£1,985 GBP
$2,660 USD
View
B
Retailer 29
-
£2,270 GBP
View
Most Expensive
B
With Clarity
754595657 · Oct 31
£2,688 GBP
$3,602 USD
View
29 more retailers have this diamond
Prices start from £581 GBPSave up to £2,108 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
£581 GBP