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Marquise|Lab Grown|IGI

1.03ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG784650884

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG784650884

Diamond specifications and retailer prices

From £184 GBP
As of November 4, 2026
Save £1,308 GBP (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,493 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784650884 or 784650884. Listed at 22 retailers as of October 28, 2026, with prices from £184 to £1,493, a £1,308 spread on the same certified stone. Rare Carat lists it at £1,493. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784650884
Dimensions10.13 × 5.32 × 3.37 mm
L/W Ratio1.90
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
10.13 mm5.32 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784650884
Side View
Table 59.0%Crown 35.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.3%

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: Nov 4
Current: £1,493 GBP|Low: £184 GBP|High: £2,037 GBP|Avg: £605 GBP
Rare Carat
Retailer 2
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November 4, 2026
Retailer 14£184 GBP
Retailer 9£207 GBP
Retailer 20£214 GBP
Retailer 5£229 GBP
Retailer 8£229 GBP
Retailer 12£256 GBP
Retailer 18£379 GBP
Retailer 7£383 GBP
Retailer 13£395 GBP
Retailer 4£399 GBP
Retailer 2£430 GBP
Retailer 3£433 GBP
Retailer 11£613 GBP
Retailer 19£703 GBP
Retailer 21£736 GBP
Retailer 15£770 GBP
Retailer 6£773 GBP
Retailer 22£891 GBP
Retailer 16£917 GBP
Retailer 10£1,000 GBP
Retailer 17£1,378 GBP
Rare Carat£1,493 GBP

41 data points across 22 retailers

22 retailers£184 GBP to £1,493 GBP

A+
Cheapest Retailer
-
£184 GBP
A
Retailer 2
-
£207 GBP
View
Final sale: no returns
A
Retailer 3
-
£214 GBP
View
Retailer 4
-
£229 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£229 GBP
View
A
Retailer 6
-
£256 GBP
View
Retailer 7
-
£379 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£383 GBP
View
A
Retailer 9
-
£395 GBP
View
A
Retailer 10
-
£399 GBP
View
Retailer 11
-
£423 GBP
View
Price last confirmed 23 days ago
A
Retailer 12
-
£430 GBP
View
A
Retailer 13
-
£433 GBP
View
B+
Retailer 14
-
£613 GBP
View
B+
Retailer 15
-
£703 GBP
View
B+
Retailer 16
-
£736 GBP
View
B+
Retailer 17
-
£773 GBP
View
B
Retailer 18
-
£891 GBP
View
B+
Retailer 19
-
£917 GBP
View
B
Retailer 20
-
£1,000 GBP
View
B
Retailer 21
-
£1,378 GBP
View
Most Expensive
B
Rare Carat
A9-81B · Oct 28
£1,493 GBP
$2,015 USD
View
21 more retailers have this diamond
Prices start from £184 GBPSave up to £1,308 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+
1.03ct Marquise
£184 GBP