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Marquise|Lab Grown|IGI

5.51ct I VS2 Marquise Lab Grown Diamond

EX • I/VS2 • IGI LG592363207

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG592363207

Diamond specifications and retailer prices

From £545 GBP
$730 USD
As of October 31, 2026
Save £2,508 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,053 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 5.51ct lab-grown marquise diamond

This 5.51ct lab-grown marquise sits in the over five carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG592363207 or 592363207. Listed at 16 retailers as of October 29, 2026, with prices from £545 to £3,053, a £2,508 spread on the same certified stone. MOH London lists it at £3,053. 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

5.51
Carat
I
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG592363207
Dimensions18.29 × 9.32 × 5.80 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
18.29 mm9.32 mm5.51 ctI / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG592363207
Side View
Table 60.0%Crown 34.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.2%

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 31
Current: £3,053 GBP|Low: £389 GBP|High: £4,239 GBP|Avg: £1,507 GBP|+28.4%
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
October 31, 2026
Retailer 3£487 GBP
Retailer 5£529 GBP
Retailer 7£545 GBP
Retailer 6£564 GBP
Retailer 14£1,221 GBP
Retailer 15£1,428 GBP
Retailer 11£1,429 GBP
Retailer 2£1,517 GBP
Retailer 4£1,587 GBP
Retailer 9£1,761 GBP
Retailer 16£1,871 GBP
Retailer 12£2,189 GBP
Retailer 13£2,468 GBP
Retailer 10£2,687 GBP
Retailer 8£2,822 GBP
MOH London£3,053 GBP

33 data points across 16 retailers

16 retailers£545 GBP to £3,053 GBP

Retailer 1
-
£487 GBP
$652 USD
Price last confirmed 15 days ago
Retailer 2
-
£529 GBP
$709 USD
View
Price last confirmed 16 days ago
A
Retailer 3
-
£545 GBP
$730 USD
View
Final sale: no returns
Retailer 4
-
£564 GBP
$756 USD
View
Price last confirmed 15 days ago
Retailer 5
-
£564 GBP
$756 USD
View
Price last confirmed 28 days ago
B+
Retailer 6
-
£1,221 GBP
$1,636 USD
View
Retailer 7
-
£1,428 GBP
$1,913 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£1,429 GBP
€1,824 EUR
View
B+
Retailer 9
-
£1,517 GBP
HK$15,880 HKD
View
Retailer 10
-
£1,587 GBP
$2,126 USD
View
Price last confirmed 15 days ago
B
Retailer 11
-
£1,761 GBP
$2,360 USD
View
B
Retailer 12
-
£1,871 GBP
$2,507 USD
View
Retailer 13
-
£2,189 GBP
$2,934 USD
View
Price last confirmed 7 days ago
B
Retailer 14
-
£2,468 GBP
View
B
Retailer 15
-
£2,687 GBP
$3,600 USD
View
Most Expensive
B
MOH London
LG592363207 · Oct 29
£3,053 GBP
View
15 more retailers have this diamond
Prices start from £545 GBPSave up to £2,508 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
5.51ct Marquise
£545 GBP