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0.31ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG752524963

Shape and cutting style on the report: Round brilliant

Certificate IGI LG752524963

Diamond specifications and retailer prices

From £66 GBP
$89 USD
As of October 25, 2026
Save £394 GBP (86%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £461 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.31ct lab-grown round diamond

This 0.31ct lab-grown round 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 LG752524963 or 752524963. Listed at 14 retailers as of October 25, 2026, with prices from £66 to £461, a £394 spread on the same certified stone. MOH London lists it at £461. 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 angle35.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG752524963
Dimensions4.37 × 4.35 × 2.70 mm
L/W Ratio1.00
Girdle conditionFaceted
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
4.37 mm4.35 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG752524963
Side View
Table 57.0%Crown 35.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.0%

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 25
Current: £461 GBP|Low: £49 GBP|High: £465 GBP|Avg: £181 GBP|+1.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 26, 2026
Retailer 5£51 GBP
Retailer 6£58 GBP
Retailer 2£102 GBP
Retailer 4£132 GBP
Retailer 7£146 GBP
Retailer 3£170 GBP
Retailer 8£184 GBP
Retailer 10£247 GBP
Retailer 9£289 GBP
MOH London£461 GBP

40 data points across 10 retailers

14 retailers£66 GBP to £461 GBP

Retailer 1
-
£51 GBP
$68 USD
Price last confirmed 8 days ago
Retailer 2
-
£58 GBP
$78 USD
View
Price last confirmed 7 days ago
Retailer 3
-
£66 GBP
$89 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£66 GBP
$89 USD
View
A
Retailer 5
-
£102 GBP
View
A
Retailer 6
-
£132 GBP
€168 EUR
View
A
Retailer 7
-
£142 GBP
$190 USD
View
B+
Retailer 8
-
£146 GBP
$195 USD
View
B+
Retailer 9
-
£170 GBP
View
B+
Retailer 10
-
£184 GBP
SGD 334 SGD
View
B+
Retailer 11
-
£202 GBP
$270 USD
View
B
Retailer 12
-
£247 GBP
$331 USD
View
B
Retailer 13
-
£289 GBP
$387 USD
View
Most Expensive
B
MOH London
LG752524963 · Oct 25
£461 GBP
View
13 more retailers have this diamond
Prices start from £66 GBPSave up to £394 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 Round
£66 GBP