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Marquise|Lab Grown|IGI

0.90ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG804625039

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG804625039

Diamond specifications and retailer prices

From £363 GBP
As of November 4, 2026
Save £1,730 GBP (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £2,093 GBP at Riddles Jewelry · As of November 4, 2026
View at Riddles Jewelry

About this 0.9ct lab-grown marquise diamond

This 0.9ct 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 LG804625039 or 804625039. Listed at 22 retailers as of November 4, 2026, with prices from £363 to £2,093, a £1,730 spread on the same certified stone. Riddles Jewelry lists it at £2,093. 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

0.90
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804625039
Dimensions10.16 × 4.90 × 3.11 mm
L/W Ratio2.07
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
10.16 mm4.90 mm0.90 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804625039
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.5%

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 4
Current: £406 GBP|Low: £348 GBP|High: £1,901 GBP|Avg: £800 GBP|-12.4%
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 11£363 GBP
Retailer 1£406 GBP
Retailer 4£406 GBP
Retailer 2£450 GBP
Retailer 5£590 GBP
Retailer 9£655 GBP
Retailer 13£717 GBP
Retailer 10£725 GBP
Retailer 7£741 GBP
Retailer 8£817 GBP
Retailer 3£1,184 GBP
Retailer 12£1,486 GBP
Retailer 6£1,874 GBP

45 data points across 13 retailers

22 retailers£363 GBP to £2,093 GBP

A
Cheapest Retailer
-
£363 GBP
A
Retailer 2
-
£406 GBP
View
Final sale: no returns
A
Retailer 3
-
£406 GBP
View
A
Retailer 4
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£450 GBP
View
Retailer 5
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£450 GBP
View
Price last confirmed 20 days ago
A
Retailer 6
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£497 GBP
View
B+
Retailer 7
-
£590 GBP
View
Retailer 8
-
£655 GBP
View
Price last confirmed 9 days ago
B+
Retailer 9
-
£705 GBP
View
B+
Retailer 10
-
£717 GBP
View
B+
Retailer 11
-
£725 GBP
View
B+
Retailer 12
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£741 GBP
View
B+
Retailer 13
-
£817 GBP
View
B
Retailer 14
-
£997 GBP
View
B
Retailer 15
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£1,184 GBP
View
B
Retailer 16
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£1,467 GBP
View
B
Retailer 17
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£1,486 GBP
View
B
Retailer 18
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£1,509 GBP
View
B
Retailer 19
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£1,571 GBP
View
B
Retailer 20
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£1,673 GBP
View
B
Retailer 21
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£1,874 GBP
View
Most Expensive
B
Riddles Jewelry
1966206770 · Nov 4
£2,093 GBP
$2,817 USD
View
21 more retailers have this diamond
Prices start from £363 GBPSave up to £1,730 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
0.90ct Marquise
£363 GBP