Round|Lab Grown|IGI

0.31ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG788632187

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788632187

Diamond specifications and retailer prices

From $319 AUD
$224 USD
As of October 25, 2026
17 retailers carry this diamond
Most expensive: $1,027 AUD at MOH London · As of October 21, 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 LG788632187 or 788632187. Listed at 17 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788632187
Dimensions4.38 × 4.42 × 2.61 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
4.38 mm4.42 mm0.31 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788632187
Side View
Table 60.0%Crown 33.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 59.5%

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: $1,027 AUD|Low: $114 AUD|High: $1,032 AUD|Avg: $315 AUD|+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$114 AUD
Retailer 12$118 AUD
Retailer 13$182 AUD
Retailer 11$196 AUD
Retailer 7$199 AUD
Retailer 3$214 AUD
Retailer 2$224 AUD
Retailer 8$262 AUD
Retailer 10$270 AUD
Retailer 4$270 AUD
Retailer 6$295 AUD
Retailer 5$319 AUD
Retailer 9$682 AUD
MOH London$1,027 AUD

28 data points across 14 retailers

17 retailers

Retailer 1
-
$95 AUD
$67 USD
Price last confirmed 39 days ago
Retailer 2
-
$111 AUD
$78 USD
View
Price last confirmed 41 days ago
Retailer 3
-
$118 AUD
$83 USD
View
Price last confirmed 11 days ago
Retailer 4
-
$125 AUD
$88 USD
View
Price last confirmed 39 days ago
Retailer 5
-
$134 AUD
$94 USD
View
Price last confirmed 15 days ago
Retailer 6
-
$182 AUD
$128 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$196 AUD
$138 USD
View
Price last confirmed 9 days ago
Retailer 8
-
$199 AUD
£110 GBP
View
Price last confirmed 10 days ago
Retailer 9
-
$214 AUD
$150 USD
View
Price last confirmed 9 days ago
Retailer 10
-
$224 AUD
£124 GBP
View
Price last confirmed 8 days ago
Retailer 11
-
$262 AUD
€175 EUR
View
Price last confirmed 7 days ago
Retailer 12
-
$270 AUD
CA$263 CAD
View
Price last confirmed 8 days ago
Retailer 13
-
$270 AUD
$190 USD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
$319 AUD
$224 USD
View
Retailer 15
-
$383 AUD
$269 USD
View
Price last confirmed 40 days ago
Retailer 16
-
$682 AUD
$479 USD
View
Price last confirmed 10 days ago
Most Expensive
MOH London
LG788632187 · Oct 21
$1,027 AUD
£568 GBP
View
Price last confirmed 10 days ago
16 more retailers have this diamond
Prices start from $319 AUD

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
$319 AUD