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Marquise|Lab Grown|IGI

5.10ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG642446508

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG642446508

Diamond specifications and retailer prices

From £12,766 GBP
$17,105 USD
As of October 28, 2026
Save £23,253 GBP (65%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: £36,019 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 5.1ct lab-grown marquise diamond

This 5.1ct lab-grown marquise sits in the over five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG642446508 or 642446508. Listed at 29 retailers as of October 28, 2026, with prices from £12,766 to £36,019, a £23,253 spread on the same certified stone. MOH London lists it at £36,019. 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

5.10
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG642446508
Dimensions17.51 × 8.98 × 5.67 mm
L/W Ratio1.95
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
17.51 mm8.98 mm5.10 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG642446508
Side View
Table 60.0%Crown 35.8°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.1%

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 28
Current: £36,019 GBP|Low: £12,766 GBP|High: £104,830 GBP|Avg: £42,539 GBP
MOH London
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 17£12,766 GBP
Retailer 11£18,424 GBP
Retailer 10£19,502 GBP
Retailer 6£20,635 GBP
Retailer 3£21,888 GBP
Retailer 19£22,950 GBP
Retailer 21£24,377 GBP
Retailer 20£25,015 GBP
Retailer 15£28,700 GBP
Retailer 18£30,412 GBP
Retailer 4£31,800 GBP
MOH London£36,019 GBP
Retailer 7£40,139 GBP
Retailer 13£41,164 GBP
Retailer 16£48,012 GBP
Retailer 2£57,162 GBP
Retailer 12£59,861 GBP
Retailer 9£69,866 GBP
Retailer 8£78,714 GBP
Retailer 14£98,060 GBP
Retailer 5£104,830 GBP

32 data points across 21 retailers

29 retailers£12,766 GBP to £36,019 GBP

A
Cheapest Retailer
-
£12,766 GBP
$17,105 USD
A
Retailer 2
-
£18,424 GBP
$24,686 USD
View
B+
Retailer 3
-
£20,635 GBP
$27,648 USD
View
B+
Retailer 4
-
£21,888 GBP
$29,328 USD
View
Retailer 5
-
£21,888 GBP
$29,328 USD
View
Price last confirmed 32 days ago
B+
Retailer 6
-
£21,888 GBP
$29,328 USD
View
Retailer 7
-
£21,888 GBP
$29,328 USD
View
Price last confirmed 22 days ago
Retailer 8
-
£21,888 GBP
$29,328 USD
View
Price last confirmed 32 days ago
Retailer 9
-
£21,888 GBP
$29,328 USD
View
Price last confirmed 24 days ago
Retailer 10
-
£22,064 GBP
$29,563 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
£22,950 GBP
$30,750 USD
View
B+
Retailer 12
-
£24,377 GBP
$32,662 USD
View
B+
Retailer 13
-
£25,015 GBP
$33,518 USD
View
Retailer 14
-
£25,041 GBP
$33,552 USD
View
Price last confirmed 33 days ago
Retailer 15
-
£25,391 GBP
$34,021 USD
View
Price last confirmed 29 days ago
Retailer 16
-
£25,391 GBP
$34,021 USD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
£28,700 GBP
View
B
Retailer 18
-
£30,412 GBP
$40,749 USD
View
Final sale: no returns
B+
Retailer 19
-
£31,800 GBP
$42,609 USD
View
Most Expensive
B
MOH London
LG642446508 · Nov 1
£36,019 GBP
View
19 more retailers have this diamond
Prices start from £12,766 GBPSave up to £23,253 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
5.10ct Marquise
£12,766 GBP