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Marquise|Lab Grown|IGI

5.83ct G SI1 Marquise Lab Grown Diamond

ID • G/SI1 • IGI LG648444456

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG648444456

Diamond specifications and retailer prices

From £503 GBP
$675 USD
As of November 2, 2026
Save £1,967 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,470 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 5.83ct lab-grown marquise diamond

This 5.83ct lab-grown marquise sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648444456 or 648444456. Listed at 13 retailers as of October 29, 2026, with prices from £503 to £2,470, a £1,967 spread on the same certified stone. MOH London lists it at £2,470. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

5.83
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648444456
Dimensions18.75 × 9.33 × 5.85 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.75 mm9.33 mm5.83 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648444456
Side View
Table 59.0%Crown 36.7°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 62.7%

Caratlytics Score

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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: Nov 2
Current: £2,470 GBP|Low: £503 GBP|High: £6,111 GBP|Avg: £1,785 GBP
MOH London
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 17
November 2, 2026
Retailer 12£503 GBP
Retailer 6£547 GBP
Retailer 13£583 GBP
Retailer 2£663 GBP
Retailer 16£696 GBP
Retailer 14£715 GBP
Retailer 15£902 GBP
Retailer 10£933 GBP
Retailer 4£950 GBP
Retailer 7£1,163 GBP
Retailer 11£1,490 GBP
Retailer 3£1,640 GBP
Retailer 17£1,839 GBP
MOH London£2,470 GBP
Retailer 5£3,547 GBP
Retailer 8£4,579 GBP
Retailer 9£6,111 GBP

6 data points across 17 retailers

13 retailers£503 GBP to £2,470 GBP

A
Cheapest Retailer
-
£503 GBP
$675 USD
A
Retailer 2
-
£547 GBP
$734 USD
View
A
Retailer 3
-
£583 GBP
$783 USD
View
A
Retailer 4
-
£663 GBP
View
A
Retailer 5
-
£696 GBP
HK$7,300 HKD
View
A
Retailer 6
-
£715 GBP
$960 USD
View
A
Retailer 7
-
£902 GBP
$1,210 USD
View
A
Retailer 8
-
£933 GBP
View
B+
Retailer 9
-
£950 GBP
$1,275 USD
View
B
Retailer 10
-
£1,490 GBP
$1,999 USD
View
B+
Retailer 11
-
£1,640 GBP
$2,201 USD
View
B
Retailer 12
-
£1,839 GBP
$2,468 USD
View
Most Expensive
B
MOH London
LG648444456 · Oct 29
£2,470 GBP
View
12 more retailers have this diamond
Prices start from £503 GBPSave up to £1,967 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
5.83ct Marquise
£503 GBP