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Marquise|Lab Grown|IGI

4.03ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG744513410

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG744513410

Diamond specifications and retailer prices

From £5,269 GBP
$7,060 USD
As of October 30, 2026
Save £13,909 GBP (73%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £19,179 GBP at Novita Diamonds · As of November 1, 2026
View at Novita Diamonds

About this 4.03ct lab-grown marquise diamond

This 4.03ct 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 LG744513410 or 744513410. Listed at 17 retailers as of October 30, 2026, with prices from £5,269 to £19,179, a £13,909 spread on the same certified stone. Novita Diamonds lists it at £19,179. 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

4.03
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744513410
Dimensions15.82 × 8.29 × 5.24 mm
L/W Ratio1.91
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
15.82 mm8.29 mm4.03 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744513410
Side View
Table 61.0%Crown 38.5°Girdle: STK-THKPavilion 39.3°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £19,179 GBP|Low: £5,177 GBP|High: £34,766 GBP|Avg: £12,587 GBP|+3.8%
Novita Diamonds
Retailer 2
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Retailer 5
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Retailer 10
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Retailer 12
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Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 14£5,269 GBP
Retailer 13£5,362 GBP
Retailer 16£5,377 GBP
Retailer 5£5,489 GBP
Retailer 9£6,051 GBP
Retailer 18£6,079 GBP
Retailer 7£6,829 GBP
Retailer 2£7,025 GBP
Retailer 4£7,092 GBP
Retailer 3£7,587 GBP
Retailer 12£9,222 GBP
Retailer 17£11,510 GBP
Retailer 19£12,590 GBP
Retailer 8£14,359 GBP
Retailer 6£15,208 GBP
Retailer 20£16,988 GBP
Retailer 11£17,356 GBP
Novita Diamonds£19,179 GBP
Retailer 15£32,876 GBP
Retailer 10£34,766 GBP

35 data points across 20 retailers

17 retailers£5,269 GBP to £19,179 GBP

A
Cheapest Retailer
-
£5,269 GBP
$7,060 USD
A
Retailer 2
-
£5,362 GBP
$7,184 USD
View
A
Retailer 3
-
£5,377 GBP
$7,204 USD
View
A
Retailer 4
-
£5,489 GBP
$7,354 USD
View
A
Retailer 5
-
£6,051 GBP
$8,108 USD
View
Final sale: no returns
A
Retailer 6
-
£6,079 GBP
$8,145 USD
View
A
Retailer 7
-
£6,829 GBP
$9,150 USD
View
A
Retailer 8
-
£7,025 GBP
$9,413 USD
View
A
Retailer 9
-
£7,092 GBP
$9,503 USD
View
A
Retailer 10
-
£7,587 GBP
$10,166 USD
View
B+
Retailer 11
-
£11,510 GBP
€14,688 EUR
View
B+
Retailer 12
-
£12,590 GBP
View
B+
Retailer 13
-
£14,359 GBP
$19,240 USD
View
Retailer 14
-
£15,208 GBP
A$31,349 AUD
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£16,988 GBP
$22,762 USD
View
Most Expensive
B
Novita Diamonds
cert_744513410 · Nov 1
£19,179 GBP
A$39,534 AUD
View
15 more retailers have this diamond
Prices start from £5,269 GBPSave up to £13,909 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
4.03ct Marquise
£5,269 GBP