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Round|Lab Grown|IGI

0.31ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG644445310

Shape and cutting style on the report: Round brilliant

Certificate IGI LG644445310

Diamond specifications and retailer prices

From €92 EUR
HK$800 HKD
As of October 30, 2026
Save €480 EUR (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €572 EUR at MOH London · As of October 29, 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 LG644445310 or 644445310. Listed at 10 retailers as of October 29, 2026, with prices from €92 to €572, a €480 spread on the same certified stone. MOH London lists it at €572. 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 angle33.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG644445310
Dimensions4.39 × 4.41 × 2.66 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.39 mm4.41 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG644445310
Side View
Table 59.0%Crown 33.4°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.4%

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: €572 EUR|Low: €92 EUR|High: €602 EUR|Avg: €240 EUR|-4.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 7€92 EUR
Retailer 5€116 EUR
Retailer 3€138 EUR
Retailer 2€155 EUR
Retailer 4€186 EUR
Retailer 9€230 EUR
Retailer 10€237 EUR
Retailer 6€249 EUR
Retailer 8€303 EUR
MOH London€572 EUR

42 data points across 10 retailers

10 retailers€92 EUR to €572 EUR

A
Cheapest Retailer
-
€92 EUR
HK$800 HKD
Retailer 2
-
€116 EUR
$130 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
€138 EUR
£122 GBP
View
A
Retailer 4
-
€155 EUR
View
B+
Retailer 5
-
€186 EUR
£164 GBP
View
B+
Retailer 6
-
€230 EUR
SGD 347 SGD
View
B+
Retailer 7
-
€237 EUR
$265 USD
View
B+
Retailer 8
-
€249 EUR
$278 USD
View
B
Retailer 9
-
€303 EUR
$339 USD
View
Most Expensive
B
MOH London
LG644445310 · Oct 29
€572 EUR
£503 GBP
View
9 more retailers have this diamond
Prices start from €92 EURSave up to €480 EUR

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
€92 EUR