Round|Lab Grown|IGI

0.31ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG749522310

Shape and cutting style on the report: Round brilliant

Certificate IGI LG749522310

Diamond specifications and retailer prices

From $313 CAD
$224 USD
As of October 25, 2026
14 retailers carry this diamond
Most expensive: $1,008 CAD at MOH London · As of October 19, 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 LG749522310 or 749522310. Listed at 14 retailers as of October 25, 2026. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749522310
Dimensions4.29 × 4.35 × 2.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.29 mm4.35 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749522310
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $1,008 CAD|Low: $77 CAD|High: $1,013 CAD|Avg: $312 CAD|+17.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 23, 2026
Retailer 9$112 CAD
Retailer 12$179 CAD
Retailer 11$192 CAD
Retailer 6$195 CAD
Retailer 13$210 CAD
Retailer 2$220 CAD
Retailer 7$257 CAD
Retailer 10$265 CAD
Retailer 3$265 CAD
Retailer 5$293 CAD
Retailer 4$313 CAD
Retailer 8$669 CAD
MOH London$1,008 CAD

29 data points across 13 retailers

14 retailers

Retailer 1
-
$94 CAD
$67 USD
Price last confirmed 38 days ago
Retailer 2
-
$109 CAD
$78 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$123 CAD
$88 USD
View
Price last confirmed 38 days ago
Retailer 4
-
$179 CAD
$128 USD
View
Price last confirmed 9 days ago
Retailer 5
-
$192 CAD
$138 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$195 CAD
£110 GBP
View
Price last confirmed 9 days ago
Retailer 7
-
$210 CAD
$150 USD
View
Price last confirmed 8 days ago
Retailer 8
-
$220 CAD
£124 GBP
View
Price last confirmed 7 days ago
Retailer 9
-
$265 CAD
View
Price last confirmed 7 days ago
Retailer 10
-
$265 CAD
$190 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$313 CAD
$224 USD
View
Retailer 12
-
$376 CAD
$269 USD
View
Price last confirmed 39 days ago
Retailer 13
-
$669 CAD
$479 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
LG749522310 · Oct 19
$1,008 CAD
£568 GBP
View
Price last confirmed 11 days ago
13 more retailers have this diamond
Prices start from $313 CAD

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.

B+
0.31ct Round
$313 CAD