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Marquise|Lab Grown|IGI

1.01ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG811619648

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811619648

Diamond specifications and retailer prices

From £335 GBP
As of November 4, 2026
Save £1,673 GBP (83%) 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 LG811619648 or 811619648. Listed at 23 retailers as of November 3, 2026, with prices from £335 to £2,007, a £1,673 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811619648
Dimensions10.44 × 5.26 × 3.31 mm
L/W Ratio1.98
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
10.44 mm5.26 mm1.01 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811619648
Side View
Table 62.0%Crown 33.1°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
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: £2,007 GBP|Low: £321 GBP|High: £2,007 GBP|Avg: £756 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
Retailer 15
November 4, 2026
Retailer 5£335 GBP
Retailer 15£375 GBP
Retailer 3£416 GBP
Retailer 4£416 GBP
Retailer 9£427 GBP
Retailer 8£522 GBP
Retailer 7£557 GBP
Retailer 13£632 GBP
Retailer 14£639 GBP
Retailer 2£680 GBP
Retailer 11£716 GBP
Retailer 10£973 GBP
Retailer 6£1,336 GBP
Retailer 12£1,525 GBP
Brilliant Earth£2,007 GBP

34 data points across 15 retailers

23 retailers£335 GBP to £2,007 GBP

A
Cheapest Retailer
-
£335 GBP
A
Retailer 2
-
£374 GBP
View
Final sale: no returns
A
Retailer 3
-
£375 GBP
View
Retailer 4
-
£416 GBP
View
Price last confirmed 19 days ago
A
Retailer 5
-
£416 GBP
View
A
Retailer 6
-
£427 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
-
£632 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
B
Retailer 19
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£1,336 GBP
View
B
Retailer 20
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£1,359 GBP
View
B
Retailer 21
-
£1,480 GBP
View
B
Retailer 22
-
£1,525 GBP
View
Most Expensive
B
Brilliant Earth
20879693A · Nov 3
£2,007 GBP
$2,710 USD
View
22 more retailers have this diamond
Prices start from £335 GBPSave up to £1,673 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
£335 GBP