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Marquise|Lab Grown|IGI

1.02ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG825666787

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825666787

Diamond specifications and retailer prices

From £170 GBP
As of November 2, 2026
Save £1,149 GBP (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,485 GBP at Rare Carat · As of October 14, 2026
View at Rare Carat

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 LG825666787 or 825666787. Listed at 18 retailers as of November 2, 2026, with a 677% 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

1.02
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825666787
Dimensions10.20 × 5.31 × 3.36 mm
L/W Ratio1.92
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
10.20 mm5.31 mm1.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825666787
Side View
Table 61.0%Crown 37.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
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 2
Current: £1,485 GBP|Low: £170 GBP|High: £2,015 GBP|Avg: £601 GBP
Rare Carat
Retailer 2
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Retailer 12
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Retailer 18
November 3, 2026
Retailer 8£170 GBP
Retailer 7£190 GBP
Retailer 14£193 GBP
Retailer 6£196 GBP
Retailer 5£210 GBP
Retailer 16£356 GBP
Retailer 9£357 GBP
Retailer 4£361 GBP
Retailer 18£362 GBP
Retailer 11£416 GBP
Retailer 15£567 GBP
Retailer 12£622 GBP
Retailer 13£659 GBP
Retailer 10£675 GBP
Retailer 17£725 GBP
Retailer 3£841 GBP
Retailer 2£1,319 GBP
Rare Carat£1,485 GBP

35 data points across 18 retailers

18 retailers£170 GBP to £1,319 GBP

A+
Cheapest Retailer
-
£170 GBP
A
Retailer 2
-
£190 GBP
View
Final sale: no returns
A
Retailer 3
-
£193 GBP
View
A
Retailer 4
-
£196 GBP
View
Retailer 5
-
£210 GBP
View
Price last confirmed 10 days ago
A
Retailer 6
-
£356 GBP
View
A
Retailer 7
-
£357 GBP
View
Retailer 8
-
£361 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£362 GBP
View
A
Retailer 10
-
£416 GBP
View
B+
Retailer 11
-
£567 GBP
View
B+
Retailer 12
-
£622 GBP
View
B+
Retailer 13
-
£659 GBP
View
B+
Retailer 14
-
£675 GBP
View
B+
Retailer 15
-
£725 GBP
View
B+
Retailer 16
-
£841 GBP
View
B
Retailer 17
-
£1,319 GBP
View
Most Expensive
Rare Carat
PD7876667JJ825 · Oct 14
£1,485 GBP
$2,005 USD
View
Price last confirmed 21 days ago
17 more retailers have this diamond
Prices start from £170 GBPSave up to £1,149 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
£170 GBP