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Marquise|Lab Grown|IGI

1.03ct I VS2 Marquise Lab Grown Diamond

ID • I/VS2 • IGI LG425067821

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG425067821

Diamond specifications and retailer prices

From £440 GBP
$590 USD
As of October 30, 2026
Save £2,855 GBP (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,296 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG425067821 or 425067821. Listed at 12 retailers as of October 29, 2026, with prices from £440 to £3,296, a £2,855 spread on the same certified stone. MOH London lists it at £3,296. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
I
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067821
Dimensions9.48 × 5.38 × 3.41 mm
L/W Ratio1.76
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.48 mm5.38 mm1.03 ctI / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425067821
Side View
Table 55.5%Crown 34.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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: £3,296 GBP|Low: £440 GBP|High: £3,321 GBP|Avg: £1,607 GBP|+0.5%
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
October 30, 2026
Retailer 2£440 GBP
Retailer 7£879 GBP
Retailer 11£957 GBP
Retailer 12£984 GBP
Retailer 8£1,020 GBP
Retailer 6£1,107 GBP
Retailer 3£1,149 GBP
Retailer 4£1,433 GBP
Retailer 9£1,620 GBP
Retailer 10£1,912 GBP
Retailer 14£2,010 GBP
Retailer 13£2,468 GBP
Retailer 5£2,921 GBP
MOH London£3,296 GBP

18 data points across 14 retailers

12 retailers£440 GBP to £3,296 GBP

A
Cheapest Retailer
-
£440 GBP
$590 USD
B
Retailer 2
-
£879 GBP
$1,178 USD
View
B
Retailer 3
-
£957 GBP
$1,282 USD
View
B
Retailer 4
-
£984 GBP
$1,319 USD
View
Final sale: no returns
B
Retailer 5
-
£1,020 GBP
$1,367 USD
View
Retailer 6
-
£1,020 GBP
$1,367 USD
View
Price last confirmed 14 days ago
B
Retailer 7
-
£1,149 GBP
$1,540 USD
View
B
Retailer 8
-
£1,620 GBP
$2,171 USD
View
B
Retailer 9
-
£1,912 GBP
$2,562 USD
View
B
Retailer 10
-
£2,010 GBP
$2,693 USD
View
B
Retailer 11
-
£2,468 GBP
View
Most Expensive
B
MOH London
LG425067821 · Oct 29
£3,296 GBP
View
11 more retailers have this diamond
Prices start from £440 GBPSave up to £2,855 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
1.03ct Marquise
£440 GBP