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Marquise|Lab Grown|IGI

0.31ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG795615043

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG795615043

Diamond specifications and retailer prices

From £51 GBP
$69 USD
As of October 30, 2026
Save £420 GBP (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £471 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.31ct lab-grown marquise diamond

This 0.31ct lab-grown marquise sits in the sub-half-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG795615043 or 795615043. Listed at 11 retailers as of October 30, 2026, with prices from £51 to £471, a £420 spread on the same certified stone. MOH London lists it at £471. 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

0.31
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG795615043
Dimensions7.03 × 3.71 × 2.16 mm
L/W Ratio1.89
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.03 mm3.71 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG795615043
Side View
Table 63.0%Crown 33°Girdle: THN-MEDPavilion 39.8°Culet: NoneDepth 58.2%

Caratlytics Score

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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: Oct 30
Current: £471 GBP|Low: £24 GBP|High: £477 GBP|Avg: £171 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 8£24 GBP
Retailer 5£51 GBP
Retailer 2£114 GBP
Retailer 4£132 GBP
Retailer 6£147 GBP
Retailer 3£165 GBP
Retailer 7£234 GBP
MOH London£471 GBP

43 data points across 8 retailers

11 retailers£51 GBP to £471 GBP

A
Cheapest Retailer
-
£51 GBP
$69 USD
A
Retailer 2
-
£60 GBP
$80 USD
View
A
Retailer 3
-
£68 GBP
$91 USD
View
Retailer 4
-
£68 GBP
$91 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£114 GBP
View
B+
Retailer 6
-
£147 GBP
$197 USD
View
B+
Retailer 7
-
£165 GBP
View
B+
Retailer 8
-
£206 GBP
$276 USD
View
B
Retailer 9
-
£234 GBP
$313 USD
View
B
Retailer 10
-
£251 GBP
$337 USD
View
Most Expensive
B
MOH London
LG795615043 · Nov 1
£471 GBP
View
10 more retailers have this diamond
Prices start from £51 GBPSave up to £420 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
0.31ct Marquise
£51 GBP