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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 HK$526 HKD
$67 USD
As of September 22, 2026
10 retailers carry this diamond
Most expensive: HK$5,660 HKD 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 10 retailers as of September 22, 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
Colour
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

No score right now
No retailer has confirmed this stone recently, so we are not scoring it. Prices below are as of the date shown.

Price History

Last verified: Sep 22
Current: HK$5,660 HKD|Low: HK$432 HKD|High: HK$5,689 HKD|Avg: HK$1,763 HKD|+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 9HK$628 HKD
Retailer 12HK$1,004 HKD
Retailer 11HK$1,081 HKD
Retailer 6HK$1,096 HKD
Retailer 13HK$1,177 HKD
Retailer 2HK$1,237 HKD
Retailer 7HK$1,442 HKD
Retailer 10HK$1,487 HKD
Retailer 3HK$1,491 HKD
Retailer 5HK$1,646 HKD
Retailer 4HK$1,757 HKD
Retailer 8HK$3,756 HKD
MOH LondonHK$5,660 HKD

28 data points across 13 retailers

10 retailersHK$526 HKD to HK$5,660 HKD

Retailer 1
-
HK$526 HKD
$67 USD
Price last confirmed 40 days ago
Retailer 2
-
HK$612 HKD
$78 USD
View
Price last confirmed 42 days ago
Retailer 3
-
HK$1,004 HKD
$128 USD
View
Price last confirmed 11 days ago
Retailer 4
-
HK$1,081 HKD
$138 USD
View
Price last confirmed 10 days ago
Retailer 5
-
HK$1,096 HKD
£110 GBP
View
Price last confirmed 11 days ago
Retailer 6
-
HK$1,177 HKD
$150 USD
View
Price last confirmed 10 days ago
Retailer 7
-
HK$1,237 HKD
£124 GBP
View
Price last confirmed 9 days ago
Retailer 8
-
HK$1,487 HKD
CA$263 CAD
View
Price last confirmed 9 days ago
Retailer 9
-
HK$3,756 HKD
$479 USD
View
Price last confirmed 11 days ago
Most Expensive
MOH London
LG749522310 · Oct 19
HK$5,660 HKD
£568 GBP
View
Price last confirmed 13 days ago
9 more retailers have this diamond

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.

0.31ct Round
HK$526 HKD