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Marquise|Lab Grown|IGI

1.02ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG800618930

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800618930

Diamond specifications and retailer prices

From £195 GBP
As of November 4, 2026
Save £1,820 GBP (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,015 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.02ct lab-grown marquise diamond

This 1.02ct 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 LG800618930 or 800618930. Listed at 23 retailers as of November 4, 2026, with prices from £195 to £2,015, a £1,820 spread on the same certified stone. Brilliant Earth lists it at £2,015. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.02
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800618930
Dimensions10.56 × 5.27 × 3.29 mm
L/W Ratio2.00
Girdle conditionFaceted
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
10.56 mm5.27 mm1.02 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800618930
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.4%

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: £2,015 GBP|Low: £195 GBP|High: £2,022 GBP|Avg: £635 GBP|-0.4%
Brilliant Earth
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November 4, 2026
Retailer 23£195 GBP
Retailer 9£218 GBP
Retailer 18£226 GBP
Retailer 7£241 GBP
Retailer 8£265 GBP
Retailer 16£299 GBP
Retailer 22£330 GBP
Retailer 13£359 GBP
Retailer 17£416 GBP
Retailer 21£421 GBP
Retailer 5£430 GBP
Retailer 2£457 GBP
Retailer 12£485 GBP
Retailer 15£610 GBP
Retailer 10£649 GBP
Retailer 20£741 GBP
Retailer 11£776 GBP
Retailer 6£814 GBP
Retailer 4£850 GBP
Retailer 19£967 GBP
Retailer 3£1,033 GBP
Retailer 14£1,489 GBP
Brilliant Earth£2,015 GBP

39 data points across 23 retailers

23 retailers£195 GBP to £2,015 GBP

A
Cheapest Retailer
-
£195 GBP
A
Retailer 2
-
£218 GBP
View
Final sale: no returns
A
Retailer 3
-
£226 GBP
View
A
Retailer 4
-
£241 GBP
View
A
Retailer 5
-
£265 GBP
View
Retailer 6
-
£299 GBP
View
Price last confirmed 10 days ago
A
Retailer 7
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£330 GBP
View
A
Retailer 8
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£359 GBP
View
A
Retailer 9
-
£416 GBP
View
A
Retailer 10
-
£421 GBP
View
A
Retailer 11
-
£430 GBP
View
A
Retailer 12
-
£457 GBP
View
Retailer 13
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£485 GBP
View
Price last confirmed 10 days ago
B+
Retailer 14
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£610 GBP
View
B+
Retailer 15
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£649 GBP
View
B+
Retailer 16
-
£741 GBP
View
B+
Retailer 17
-
£776 GBP
View
B+
Retailer 18
-
£814 GBP
View
B
Retailer 19
-
£850 GBP
View
B+
Retailer 20
-
£967 GBP
View
B
Retailer 21
-
£1,033 GBP
View
Retailer 22
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£1,489 GBP
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
20179360A · Nov 4
£2,015 GBP
$2,720 USD
View
22 more retailers have this diamond
Prices start from £195 GBPSave up to £1,820 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
1.02ct Marquise
£195 GBP