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Marquise|Lab Grown|IGI

1.24ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG624436697

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG624436697

Diamond specifications and retailer prices

From £287 GBP
As of November 4, 2026
Save £1,076 GBP (79%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: £1,390 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.24ct lab-grown marquise diamond

This 1.24ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG624436697 or 624436697. Listed at 29 retailers as of November 4, 2026, with a 374% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.24
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG624436697
Dimensions11.12 × 5.66 × 3.46 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
11.12 mm5.66 mm1.24 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG624436697
Side View
Table 61.0%Crown 34.7°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.1%

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: Nov 4
Current: £1,024 GBP|Low: £206 GBP|High: £1,627 GBP|Avg: £866 GBP
NZ Jewellers
Retailer 2
Retailer 3
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Retailer 23
November 5, 2026
Retailer 15£206 GBP
Retailer 19£287 GBP
Retailer 18£370 GBP
Retailer 14£416 GBP
Retailer 17£419 GBP
Retailer 21£450 GBP
Retailer 2£567 GBP
Retailer 11£584 GBP
Retailer 8£641 GBP
Retailer 12£647 GBP
Retailer 6£717 GBP
Retailer 4£727 GBP
Retailer 9£779 GBP
Retailer 20£934 GBP
NZ Jewellers£1,024 GBP
Retailer 5£1,055 GBP
Retailer 23£1,068 GBP
Retailer 10£1,133 GBP
Retailer 3£1,220 GBP
Retailer 22£1,230 GBP
Retailer 13£1,241 GBP
Retailer 16£1,292 GBP
Retailer 7£1,363 GBP

30 data points across 23 retailers

29 retailers£287 GBP to £1,363 GBP

Retailer 1
-
£206 GBP
Price last confirmed 28 days ago
A
Retailer 2
-
£287 GBP
View
Final sale: no returns
Retailer 3
-
£349 GBP
View
Price last confirmed 36 days ago
A
Retailer 4
-
£370 GBP
View
Retailer 5
-
£390 GBP
View
Price last confirmed 37 days ago
Retailer 6
-
£416 GBP
View
Price last confirmed 28 days ago
Retailer 7
-
£416 GBP
View
Price last confirmed 26 days ago
A
Retailer 8
-
£419 GBP
View
Retailer 9
-
£427 GBP
View
Price last confirmed 37 days ago
A
Retailer 10
-
£450 GBP
View
A
Retailer 11
-
£567 GBP
View
B+
Retailer 12
-
£584 GBP
View
B+
Retailer 13
-
£641 GBP
View
B+
Retailer 14
-
£647 GBP
View
B
Retailer 15
-
£717 GBP
View
B+
Retailer 16
-
£727 GBP
View
B+
Retailer 17
-
£779 GBP
View
B+
Retailer 18
-
£934 GBP
View
B+
Retailer 19
-
£1,024 GBP
View
B+
Retailer 20
-
£1,055 GBP
View
B
Retailer 21
-
£1,068 GBP
View
Retailer 22
-
£1,133 GBP
View
Price last confirmed 8 days ago
B
Retailer 23
-
£1,220 GBP
View
B
Retailer 24
-
£1,230 GBP
View
B
Retailer 25
-
£1,241 GBP
View
Retailer 26
-
£1,292 GBP
View
Price last confirmed 28 days ago
Retailer 27
-
£1,338 GBP
View
Price last confirmed 26 days ago
B
Retailer 28
-
£1,363 GBP
View
Most Expensive
NZ Jewellers
f52b59f9-7bf9-4e14-b286-b9a63a55a3e0 · Sep 30
£1,390 GBP
$1,876 USD
View
Price last confirmed 35 days ago
28 more retailers have this diamond
Prices start from £287 GBPSave up to £1,076 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
1.24ct Marquise
£287 GBP