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Marquise|Lab Grown|IGI

4.01ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG830677362

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG830677362

Diamond specifications and retailer prices

From £5,243 GBP
$7,025 USD
As of October 30, 2026
Save £13,839 GBP (73%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £19,082 GBP at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 4.01ct lab-grown marquise diamond

This 4.01ct lab-grown marquise sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG830677362 or 830677362. Listed at 14 retailers as of October 30, 2026, with prices from £5,243 to £19,082, a £13,839 spread on the same certified stone. Novita Diamonds lists it at £19,082. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.01
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830677362
Dimensions16.28 × 8.04 × 5.09 mm
L/W Ratio2.02
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
16.28 mm8.04 mm4.01 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830677362
Side View
Table 61.0%Crown 36.8°Girdle: STK-THKPavilion 40°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: £19,082 GBP|Low: £5,152 GBP|High: £33,488 GBP|Avg: £11,230 GBP|-1.1%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 10£5,243 GBP
Retailer 12£5,350 GBP
Retailer 4£5,462 GBP
Retailer 13£6,053 GBP
Retailer 5£6,795 GBP
Retailer 9£6,991 GBP
Retailer 8£7,047 GBP
Retailer 14£7,551 GBP
Retailer 3£11,434 GBP
Retailer 7£12,463 GBP
Retailer 6£14,285 GBP
Retailer 2£14,772 GBP
Novita Diamonds£19,082 GBP
Retailer 11£32,719 GBP

27 data points across 14 retailers

14 retailers£5,243 GBP to £19,082 GBP

A
Cheapest Retailer
-
£5,243 GBP
$7,025 USD
A
Retailer 2
-
£5,350 GBP
$7,169 USD
View
A
Retailer 3
-
£5,462 GBP
$7,318 USD
View
A
Retailer 4
-
£6,053 GBP
$8,110 USD
View
A
Retailer 5
-
£6,795 GBP
$9,105 USD
View
A
Retailer 6
-
£6,991 GBP
$9,367 USD
View
A
Retailer 7
-
£7,047 GBP
$9,442 USD
View
A
Retailer 8
-
£7,551 GBP
$10,117 USD
View
B+
Retailer 9
-
£11,434 GBP
€14,591 EUR
View
B+
Retailer 10
-
£12,463 GBP
View
B
Retailer 11
-
£14,285 GBP
$19,140 USD
View
B+
Retailer 12
-
£14,772 GBP
A$30,451 AUD
View
Most Expensive
B
Novita Diamonds
cert_830677362 · Nov 1
£19,082 GBP
A$39,336 AUD
View
12 more retailers have this diamond
Prices start from £5,243 GBPSave up to £13,839 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
4.01ct Marquise
£5,243 GBP