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Marquise|Lab Grown|IGI

1.33ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG780665643

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG780665643

Diamond specifications and retailer prices

From £231 GBP
As of November 4, 2026
Save £1,821 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,052 GBP at Do Amore Diamonds · As of November 3, 2026
View at Do Amore Diamonds

About this 1.33ct lab-grown marquise diamond

This 1.33ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG780665643 or 780665643. Listed at 18 retailers as of November 3, 2026, with prices from £231 to £2,052, a £1,821 spread on the same certified stone. Do Amore Diamonds lists it at £2,052. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.33
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780665643
Dimensions11.18 × 5.85 × 3.56 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizePointed
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
11.18 mm5.85 mm1.33 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780665643
Side View
Table 56.0%Crown 35°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 60.9%

Caratlytics Score

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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 4
Current: £2,052 GBP|Low: £231 GBP|High: £2,578 GBP|Avg: £874 GBP|-7.4%
Do Amore Diamonds
Retailer 2
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Retailer 12
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Retailer 17
November 5, 2026
Retailer 14£231 GBP
Retailer 5£268 GBP
Retailer 9£293 GBP
Retailer 10£324 GBP
Retailer 15£406 GBP
Retailer 7£422 GBP
Retailer 17£465 GBP
Retailer 12£537 GBP
Retailer 8£550 GBP
Retailer 13£601 GBP
Retailer 16£840 GBP
Retailer 4£884 GBP
Retailer 3£1,016 GBP
Retailer 2£1,232 GBP
Retailer 11£1,719 GBP
Retailer 6£1,722 GBP
Do Amore Diamonds£2,052 GBP

41 data points across 17 retailers

18 retailers£231 GBP to £2,052 GBP

A+
Cheapest Retailer
-
£231 GBP
A
Retailer 2
-
£268 GBP
View
A
Retailer 3
-
£293 GBP
View
Final sale: no returns
A
Retailer 4
-
£324 GBP
View
A
Retailer 5
-
£406 GBP
View
A
Retailer 6
-
£422 GBP
View
A
Retailer 7
-
£465 GBP
View
A
Retailer 8
-
£537 GBP
View
A
Retailer 9
-
£550 GBP
View
A
Retailer 10
-
£601 GBP
View
B+
Retailer 11
-
£840 GBP
View
B+
Retailer 12
-
£884 GBP
View
B+
Retailer 13
-
£1,016 GBP
View
B+
Retailer 14
-
£1,232 GBP
View
Retailer 15
-
£1,693 GBP
View
Price last confirmed 8 days ago
B
Retailer 16
-
£1,719 GBP
View
Retailer 17
-
£1,722 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Do Amore Diamonds
27-7716D4F07 · Nov 3
£2,052 GBP
$2,770 USD
View
17 more retailers have this diamond
Prices start from £231 GBPSave up to £1,821 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+
1.33ct Marquise
£231 GBP