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Marquise|Lab Grown|IGI

1.02ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG848601423

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG848601423

Diamond specifications and retailer prices

From £189 GBP
As of November 1, 2026
Save £462 GBP (71%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £651 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.02ct lab-grown marquise diamond

This 1.02ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG848601423 or 848601423. Listed at 7 retailers as of November 1, 2026, with prices from £189 to £651, a £462 spread on the same certified stone. MOH London lists it at £651. 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

1.02
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG848601423
Dimensions10.00 × 5.40 × 3.40 mm
L/W Ratio1.85
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.00 mm5.40 mm1.02 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG848601423
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £651 GBP|Low: £189 GBP|High: £2,126 GBP|Avg: £383 GBP|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 4£189 GBP
Retailer 2£242 GBP
Retailer 6£243 GBP
Retailer 5£253 GBP
Retailer 3£265 GBP
Retailer 7£489 GBP
MOH London£651 GBP

12 data points across 7 retailers

7 retailers£189 GBP to £651 GBP

B+
Cheapest Retailer
-
£189 GBP
A
Retailer 2
-
£242 GBP
View
A
Retailer 3
-
£243 GBP
View
Retailer 4
-
£253 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£265 GBP
View
B
Retailer 6
-
£489 GBP
View
Most Expensive
B
MOH London
LG848601423 · Nov 1
£651 GBP
View
6 more retailers have this diamond
Prices start from £189 GBPSave up to £462 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
1.02ct Marquise
£189 GBP