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Marquise|Lab Grown|IGI

0.90ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG838645107

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838645107

Diamond specifications and retailer prices

From £222 GBP
$297 USD
As of October 30, 2026
Save £1,122 GBP (84%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,343 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 LG838645107 or 838645107. Listed at 25 retailers as of October 30, 2026, with prices from £222 to £1,343, a £1,122 spread on the same certified stone. Brilliant Earth lists it at £1,343. 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 angle34.8°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838645107
Dimensions9.58 × 5.07 × 3.21 mm
L/W Ratio1.89
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
9.58 mm5.07 mm0.90 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838645107
Side View
Table 59.0%Crown 34.8°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
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: £1,343 GBP|Low: £222 GBP|High: £1,343 GBP|Avg: £649 GBP
Brilliant Earth
Retailer 2
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Retailer 25
November 1, 2026
Retailer 8£222 GBP
Retailer 25£257 GBP
Retailer 10£272 GBP
Retailer 5£275 GBP
Retailer 6£275 GBP
Retailer 13£337 GBP
Retailer 16£412 GBP
Retailer 23£431 GBP
Retailer 3£437 GBP
Retailer 7£450 GBP
Retailer 24£463 GBP
Retailer 19£483 GBP
Retailer 22£497 GBP
Retailer 12£585 GBP
Retailer 21£685 GBP
Retailer 14£708 GBP
Retailer 9£884 GBP
Retailer 20£896 GBP
Retailer 11£920 GBP
Retailer 15£967 GBP
Retailer 17£981 GBP
Retailer 2£1,101 GBP
Retailer 4£1,122 GBP
Retailer 18£1,141 GBP
Brilliant Earth£1,343 GBP

32 data points across 25 retailers

25 retailers£222 GBP to £1,343 GBP

A
Cheapest Retailer
-
£222 GBP
$297 USD
A
Retailer 2
-
£257 GBP
$345 USD
View
A
Retailer 3
-
£272 GBP
$364 USD
View
Final sale: no returns
Retailer 4
-
£275 GBP
$368 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£275 GBP
$368 USD
View
A
Retailer 6
-
£337 GBP
View
A
Retailer 7
-
£412 GBP
$552 USD
View
A
Retailer 8
-
£431 GBP
€550 EUR
View
A
Retailer 9
-
£437 GBP
$585 USD
View
A
Retailer 10
-
£450 GBP
$603 USD
View
A
Retailer 11
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£463 GBP
$620 USD
View
A
Retailer 12
-
£483 GBP
View
A
Retailer 13
-
£497 GBP
ZAR 10,763 ZAR
View
Retailer 14
-
£585 GBP
$784 USD
View
Price last confirmed 8 days ago
B+
Retailer 15
-
£685 GBP
A$1,413 AUD
View
B+
Retailer 16
-
£708 GBP
$949 USD
View
B
Retailer 17
-
£884 GBP
$1,184 USD
View
B+
Retailer 18
-
£896 GBP
A$1,848 AUD
View
B
Retailer 19
-
£920 GBP
$1,232 USD
View
B
Retailer 20
-
£967 GBP
CA$1,799 CAD
View
B
Retailer 21
-
£981 GBP
$1,315 USD
View
B
Retailer 22
-
£1,101 GBP
View
B
Retailer 23
-
£1,122 GBP
$1,503 USD
View
B
Retailer 24
-
£1,141 GBP
$1,529 USD
View
Most Expensive
B
Brilliant Earth
21791119A · Oct 31
£1,343 GBP
$1,800 USD
View
24 more retailers have this diamond
Prices start from £222 GBPSave up to £1,122 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
£222 GBP