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Marquise|Lab Grown|IGI

0.91ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG799697369

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799697369

Diamond specifications and retailer prices

From £387 GBP
As of November 5, 2026
Save £1,960 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,054 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 0.91ct lab-grown marquise diamond

This 0.91ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799697369 or 799697369. Listed at 19 retailers as of November 1, 2026, with a 506% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.91
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799697369
Dimensions10.23 × 4.96 × 3.13 mm
L/W Ratio2.06
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
10.23 mm4.96 mm0.91 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799697369
Side View
Table 60.0%Crown 36.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.1%

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 5
Current: £837 GBP|Low: £490 GBP|High: £2,375 GBP|Avg: £1,119 GBP|+1.5%
Retailer 1
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 5, 2026
Retailer 13£490 GBP
Retailer 3£517 GBP
Retailer 12£724 GBP
Retailer 10£785 GBP
Retailer 1£837 GBP
Retailer 11£847 GBP
Retailer 7£978 GBP
Retailer 6£1,103 GBP
Retailer 4£1,210 GBP
Retailer 2£1,389 GBP
Retailer 5£1,525 GBP
Retailer 9£1,545 GBP
Retailer 8£2,347 GBP

44 data points across 13 retailers

19 retailers£387 GBP to £2,347 GBP

A
Cheapest Retailer
-
£387 GBP
Retailer 2
-
£490 GBP
View
Price last confirmed 20 days ago
A
Retailer 3
-
£517 GBP
View
B+
Retailer 4
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£713 GBP
View
B+
Retailer 5
-
£724 GBP
View
Retailer 6
-
£785 GBP
View
Price last confirmed 9 days ago
B+
Retailer 7
-
£837 GBP
View
B+
Retailer 8
-
£847 GBP
View
B+
Retailer 9
-
£978 GBP
View
B
Retailer 10
-
£1,103 GBP
View
B
Retailer 11
-
£1,210 GBP
View
B
Retailer 12
-
£1,389 GBP
View
B
Retailer 13
-
£1,525 GBP
View
B
Retailer 14
-
£1,545 GBP
View
B
Retailer 15
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£1,837 GBP
View
B
Retailer 16
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£1,837 GBP
View
B
Retailer 17
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£2,116 GBP
View
B
Retailer 18
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£2,347 GBP
View
Most Expensive
Do Amore Diamonds
20-D81258 · Nov 4
£3,054 GBP
$4,110 USD
View
Price under review
18 more retailers have this diamond
Prices start from £387 GBPSave up to £1,960 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
0.91ct Marquise
£387 GBP