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Marquise|Lab Grown|IGI

1.01ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG811619358

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811619358

Diamond specifications and retailer prices

From £374 GBP
As of November 3, 2026
Save £1,633 GBP (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,007 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.01ct lab-grown marquise diamond

This 1.01ct 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 LG811619358 or 811619358. Listed at 23 retailers as of November 3, 2026, with prices from £374 to £2,007, a £1,633 spread on the same certified stone. Brilliant Earth lists it at £2,007. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.01
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811619358
Dimensions10.36 × 5.29 × 3.20 mm
L/W Ratio1.96
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
10.36 mm5.29 mm1.01 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811619358
Side View
Table 59.0%Crown 32.4°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 60.5%

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: £2,007 GBP|Low: £321 GBP|High: £2,007 GBP|Avg: £769 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
November 4, 2026
Retailer 4£335 GBP
Retailer 5£415 GBP
Retailer 13£415 GBP
Retailer 2£426 GBP
Retailer 8£522 GBP
Retailer 3£557 GBP
Retailer 11£630 GBP
Retailer 12£639 GBP
Retailer 7£680 GBP
Retailer 9£716 GBP
Retailer 6£1,116 GBP
Retailer 10£1,524 GBP
Brilliant Earth£2,007 GBP

41 data points across 13 retailers

23 retailers£374 GBP to £2,007 GBP

Retailer 1
-
£335 GBP
Price last confirmed 27 days ago
A
Retailer 2
-
£374 GBP
View
Final sale: no returns
Retailer 3
-
£375 GBP
View
Price last confirmed 20 days ago
Retailer 4
-
£415 GBP
View
Price last confirmed 19 days ago
Retailer 5
-
£415 GBP
View
Price last confirmed 32 days ago
A
Retailer 6
-
£426 GBP
View
B+
Retailer 7
-
£471 GBP
View
B+
Retailer 8
-
£522 GBP
View
B+
Retailer 9
-
£557 GBP
View
B+
Retailer 10
-
£576 GBP
View
B+
Retailer 11
-
£630 GBP
View
B+
Retailer 12
-
£639 GBP
View
B+
Retailer 13
-
£680 GBP
View
B+
Retailer 14
-
£716 GBP
View
B+
Retailer 15
-
£973 GBP
View
B
Retailer 16
-
£1,098 GBP
View
B
Retailer 17
-
£1,116 GBP
View
B
Retailer 18
-
£1,207 GBP
View
Retailer 19
-
£1,335 GBP
View
Price last confirmed 35 days ago
B
Retailer 20
-
£1,358 GBP
View
B
Retailer 21
-
£1,479 GBP
View
B
Retailer 22
-
£1,524 GBP
View
Most Expensive
B
Brilliant Earth
20555715A · Nov 3
£2,007 GBP
$2,710 USD
View
22 more retailers have this diamond
Prices start from £374 GBPSave up to £1,633 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
1.01ct Marquise
£374 GBP