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Marquise|Lab Grown|IGI

1.02ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG811619403

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811619403

Diamond specifications and retailer prices

From £379 GBP
As of November 3, 2026
Save £1,644 GBP (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £2,022 GBP at Brilliant Earth · As of November 3, 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 LG811619403 or 811619403. Listed at 24 retailers as of November 3, 2026, with prices from £379 to £2,022, a £1,644 spread on the same certified stone. Brilliant Earth lists it at £2,022. 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 angle33.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811619403
Dimensions10.53 × 5.27 × 3.22 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
10.53 mm5.27 mm1.02 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811619403
Side View
Table 62.0%Crown 33.1°Girdle: MED-STKPavilion 39.9°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 3
Current: £2,022 GBP|Low: £324 GBP|High: £2,022 GBP|Avg: £807 GBP
Brilliant Earth
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
November 4, 2026
Retailer 3£338 GBP
Retailer 5£419 GBP
Retailer 6£419 GBP
Retailer 9£430 GBP
Retailer 8£526 GBP
Retailer 14£563 GBP
Retailer 13£638 GBP
Retailer 12£644 GBP
Retailer 7£687 GBP
Retailer 11£723 GBP
Retailer 2£1,127 GBP
Retailer 4£1,493 GBP
Retailer 10£1,539 GBP
Brilliant Earth£2,022 GBP

41 data points across 14 retailers

24 retailers£379 GBP to £2,022 GBP

Retailer 1
-
£338 GBP
Price last confirmed 27 days ago
A
Retailer 2
-
£379 GBP
View
Final sale: no returns
Retailer 3
-
£379 GBP
View
Price last confirmed 20 days ago
Retailer 4
-
£419 GBP
View
Price last confirmed 23 days ago
Retailer 5
-
£419 GBP
View
Price last confirmed 32 days ago
A
Retailer 6
-
£430 GBP
View
B+
Retailer 7
-
£480 GBP
View
B+
Retailer 8
-
£526 GBP
View
B+
Retailer 9
-
£563 GBP
View
B+
Retailer 10
-
£580 GBP
View
B+
Retailer 11
-
£638 GBP
View
B+
Retailer 12
-
£644 GBP
View
B+
Retailer 13
-
£687 GBP
View
B+
Retailer 14
-
£723 GBP
View
B
Retailer 15
-
£982 GBP
View
B
Retailer 16
-
£1,109 GBP
View
B
Retailer 17
-
£1,127 GBP
View
B
Retailer 18
-
£1,219 GBP
View
Retailer 19
-
£1,347 GBP
View
Price last confirmed 35 days ago
B
Retailer 20
-
£1,370 GBP
View
B
Retailer 21
-
£1,490 GBP
View
Retailer 22
-
£1,493 GBP
View
Price last confirmed 21 days ago
B
Retailer 23
-
£1,539 GBP
View
Most Expensive
B
Brilliant Earth
20735016A · Nov 3
£2,022 GBP
$2,730 USD
View
23 more retailers have this diamond
Prices start from £379 GBPSave up to £1,644 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
£379 GBP