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Marquise|Lab Grown|IGI

0.90ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG823695084

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823695084

Diamond specifications and retailer prices

From £227 GBP
$304 USD
As of October 30, 2026
Save £960 GBP (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,187 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823695084 or 823695084. Listed at 20 retailers as of October 30, 2026, with prices from £227 to £1,187, a £960 spread on the same certified stone. Brilliant Earth lists it at £1,187. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823695084
Dimensions10.23 × 4.99 × 3.13 mm
L/W Ratio2.05
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
10.23 mm4.99 mm0.90 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823695084
Side View
Table 57.0%Crown 34°Girdle: MediumPavilion 40.1°Culet: NoneDepth 62.7%

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: Oct 30
Current: £1,187 GBP|Low: £181 GBP|High: £1,314 GBP|Avg: £631 GBP|-9.7%
Brilliant Earth
Retailer 2
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Retailer 20
November 1, 2026
Retailer 19£227 GBP
Retailer 9£254 GBP
Retailer 6£263 GBP
Retailer 7£281 GBP
Retailer 20£281 GBP
Retailer 5£315 GBP
Retailer 11£452 GBP
Retailer 15£458 GBP
Retailer 4£459 GBP
Retailer 2£496 GBP
Retailer 14£509 GBP
Retailer 13£702 GBP
Retailer 8£752 GBP
Retailer 17£810 GBP
Retailer 18£865 GBP
Retailer 3£905 GBP
Retailer 10£940 GBP
Retailer 16£1,130 GBP
Retailer 12£1,139 GBP
Brilliant Earth£1,187 GBP

44 data points across 20 retailers

20 retailers£227 GBP to £1,187 GBP

A
Cheapest Retailer
-
£227 GBP
$304 USD
A
Retailer 2
-
£254 GBP
$340 USD
View
Final sale: no returns
A
Retailer 3
-
£263 GBP
$353 USD
View
Retailer 4
-
£281 GBP
$377 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£281 GBP
$377 USD
View
A
Retailer 6
-
£315 GBP
HK$3,300 HKD
View
A
Retailer 7
-
£452 GBP
$606 USD
View
A
Retailer 8
-
£458 GBP
€584 EUR
View
A
Retailer 9
-
£459 GBP
$615 USD
View
A
Retailer 10
-
£496 GBP
View
A
Retailer 11
-
£509 GBP
ZAR 11,025 ZAR
View
B+
Retailer 12
-
£702 GBP
A$1,448 AUD
View
B+
Retailer 13
-
£752 GBP
SGD 1,362 SGD
View
B+
Retailer 14
-
£810 GBP
$1,085 USD
View
B
Retailer 15
-
£865 GBP
$1,159 USD
View
B
Retailer 16
-
£905 GBP
$1,213 USD
View
B
Retailer 17
-
£940 GBP
$1,260 USD
View
B
Retailer 18
-
£1,130 GBP
View
B
Retailer 19
-
£1,139 GBP
$1,526 USD
View
Most Expensive
B
Brilliant Earth
21309860A · Oct 31
£1,187 GBP
$1,590 USD
View
19 more retailers have this diamond
Prices start from £227 GBPSave up to £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
0.90ct Marquise
£227 GBP