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Marquise|Lab Grown|IGI

1.27ct D FL Marquise Lab Grown Diamond

ID • D/FL • IGI LG790666443

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790666443

Diamond specifications and retailer prices

From £781 GBP
As of November 4, 2026
Save £2,380 GBP (75%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,161 GBP at Taylor and Hart · As of November 4, 2026
View at Taylor and Hart

About this 1.27ct lab-grown marquise diamond

This 1.27ct 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 LG790666443 or 790666443. Listed at 22 retailers as of November 4, 2026, with prices from £781 to £3,161, a £2,380 spread on the same certified stone. Taylor and Hart lists it at £3,161. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790666443
Dimensions11.24 × 5.57 × 3.45 mm
L/W Ratio2.02
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
11.24 mm5.57 mm1.27 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790666443
Side View
Table 62.0%Crown 35.5°Girdle: MED-STKPavilion 39.2°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
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: £1,290 GBP|Low: £752 GBP|High: £3,167 GBP|Avg: £1,680 GBP|-5.1%
Retailer 1
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Taylor and Hart
November 5, 2026
Retailer 19£781 GBP
Retailer 9£849 GBP
Retailer 5£873 GBP
Retailer 2£905 GBP
Retailer 10£907 GBP
Retailer 4£1,033 GBP
Retailer 18£1,046 GBP
Retailer 12£1,279 GBP
Retailer 1£1,290 GBP
Retailer 17£1,295 GBP
Retailer 3£1,598 GBP
Retailer 14£1,665 GBP
Retailer 8£1,697 GBP
Retailer 15£1,745 GBP
Retailer 13£1,907 GBP
Retailer 6£2,495 GBP
Retailer 11£2,556 GBP
Retailer 20£2,902 GBP
Retailer 7£3,033 GBP
Retailer 16£3,070 GBP
Taylor and Hart£3,161 GBP

38 data points across 21 retailers

22 retailers£781 GBP to £3,161 GBP

A
Cheapest Retailer
-
£781 GBP
B+
Retailer 2
-
£849 GBP
View
B+
Retailer 3
-
£873 GBP
View
Final sale: no returns
B+
Retailer 4
-
£905 GBP
View
Retailer 5
-
£907 GBP
View
Price last confirmed 19 days ago
B+
Retailer 6
-
£1,033 GBP
View
B+
Retailer 7
-
£1,046 GBP
View
B+
Retailer 8
-
£1,052 GBP
View
B+
Retailer 9
-
£1,279 GBP
View
B+
Retailer 10
-
£1,290 GBP
View
B+
Retailer 11
-
£1,295 GBP
View
B
Retailer 12
-
£1,598 GBP
View
B+
Retailer 13
-
£1,665 GBP
View
B+
Retailer 14
-
£1,697 GBP
View
B
Retailer 15
-
£1,745 GBP
View
Retailer 16
-
£1,907 GBP
View
Price last confirmed 29 days ago
B
Retailer 17
-
£2,495 GBP
View
B
Retailer 18
-
£2,556 GBP
View
B
Retailer 19
-
£2,902 GBP
View
B
Retailer 20
-
£3,033 GBP
View
B
Retailer 21
-
£3,070 GBP
View
Most Expensive
B
Taylor and Hart
C0FQK8M · Nov 4
£3,161 GBP
$4,267 USD
View
21 more retailers have this diamond
Prices start from £781 GBPSave up to £2,380 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
1.27ct Marquise
£781 GBP