Round|Lab Grown|IGI

0.31ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG746526624

Shape and cutting style on the report: Round brilliant

Certificate IGI LG746526624

Diamond specifications and retailer prices

From $224 USD
As of October 25, 2026
16 retailers carry this diamond
Most expensive: $721 USD 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 LG746526624 or 746526624. Listed at 16 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 angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG746526624
Dimensions4.35 × 4.40 × 2.63 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
4.35 mm4.40 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG746526624
Side View
Table 58.0%Crown 34.4°Girdle: MediumPavilion 40.2°Culet: NoneDepth 60.3%

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: $721 USD|Low: $80 USD|High: $725 USD|Avg: $221 USD|+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
Retailer 14
October 23, 2026
Retailer 14$80 USD
Retailer 12$83 USD
Retailer 13$128 USD
Retailer 11$138 USD
Retailer 7$140 USD
Retailer 3$150 USD
Retailer 2$158 USD
Retailer 8$184 USD
Retailer 10$190 USD
Retailer 4$190 USD
Retailer 6$207 USD
Retailer 5$224 USD
Retailer 9$479 USD
MOH London$721 USD

29 data points across 14 retailers

16 retailers

Retailer 1
-
$67 USD
Price last confirmed 38 days ago
Retailer 2
-
$78 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$83 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$88 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$94 USD
View
Price last confirmed 14 days ago
Retailer 6
-
$128 USD
View
Price last confirmed 9 days ago
Retailer 7
-
$138 USD
View
Price last confirmed 8 days ago
Retailer 8
-
$140 USD
£110 GBP
View
Price last confirmed 9 days ago
Retailer 9
-
$150 USD
View
Price last confirmed 7 days ago
Retailer 10
-
$158 USD
£124 GBP
View
Price last confirmed 7 days ago
Retailer 11
-
$190 USD
CA$263 CAD
View
Price last confirmed 7 days ago
Retailer 12
-
$190 USD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$224 USD
View
Retailer 14
-
$269 USD
View
Price last confirmed 39 days ago
Retailer 15
-
$479 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
LG746526624 · Oct 19
$721 USD
£568 GBP
View
Price last confirmed 11 days ago
15 more retailers have this diamond
Prices start from $224 USD

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
$224 USD