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Marquise|Lab Grown|IGI

1.07ct H SI1 Marquise Lab Grown Diamond

ID • H/SI1 • IGI LG436074722

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG436074722

Diamond specifications and retailer prices

From £452 GBP
As of November 6, 2026
Save £1,985 GBP (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,437 GBP at MOH London · As of November 3, 2026
View at MOH London

About this 1.07ct lab-grown marquise diamond

This 1.07ct lab-grown marquise sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074722 or 436074722. Listed at 12 retailers as of November 3, 2026, with prices from £452 to £2,437, a £1,985 spread on the same certified stone. MOH London lists it at £2,437. 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

1.07
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074722
Dimensions9.88 × 5.48 × 3.47 mm
L/W Ratio1.80
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.88 mm5.48 mm1.07 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074722
Side View
Table 61.5%Crown 36.2°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 63.3%

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: Nov 6
Current: £2,437 GBP|Low: £435 GBP|High: £2,467 GBP|Avg: £1,027 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
November 3, 2026
Retailer 7£452 GBP
Retailer 2£461 GBP
Retailer 4£507 GBP
Retailer 10£507 GBP
Retailer 8£562 GBP
Retailer 5£658 GBP
Retailer 9£861 GBP
Retailer 12£883 GBP
Retailer 6£1,393 GBP
Retailer 3£1,504 GBP
Retailer 11£1,710 GBP
MOH London£2,437 GBP

20 data points across 12 retailers

12 retailers£452 GBP to £2,437 GBP

A
Cheapest Retailer
-
£452 GBP
A
Retailer 2
-
£461 GBP
View
A
Retailer 3
-
£507 GBP
View
Final sale: no returns
A
Retailer 4
-
£507 GBP
View
Retailer 5
-
£562 GBP
View
Price last confirmed 21 days ago
A
Retailer 6
-
£562 GBP
View
A
Retailer 7
-
£658 GBP
View
B+
Retailer 8
-
£861 GBP
View
B
Retailer 9
-
£1,393 GBP
View
B
Retailer 10
-
£1,477 GBP
View
B
Retailer 11
-
£1,710 GBP
View
Most Expensive
B
MOH London
LG436074722 · Nov 3
£2,437 GBP
View
11 more retailers have this diamond
Prices start from £452 GBPSave up to £1,985 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
1.07ct Marquise
£452 GBP