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Marquise|Lab Grown|IGI

0.31ct H SI1 Marquise Lab Grown Diamond

GD • H/SI1 • IGI LG544242229

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG544242229

Diamond specifications and retailer prices

From $124 AUD
$87 USD
As of November 2, 2026
Save $1,006 AUD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,130 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 0.31ct lab-grown marquise diamond

This 0.31ct lab-grown marquise sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG544242229 or 544242229. Listed at 11 retailers as of October 29, 2026, with prices from $124 to $1,130, a $1,006 spread on the same certified stone. MOH London lists it at $1,130. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.31
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.4°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544242229
Dimensions7.24 × 3.41 × 2.10 mm
L/W Ratio2.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.24 mm3.41 mm0.31 ctH / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG544242229
Side View
Table 65.5%Crown 38.4°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,130 AUD|Low: $118 AUD|High: $1,774 AUD|Avg: $512 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6$124 AUD
Retailer 9$142 AUD
Retailer 10$162 AUD
Retailer 11$162 AUD
Retailer 2$242 AUD
Retailer 4$292 AUD
Retailer 8$325 AUD
Retailer 5$392 AUD
Retailer 12$473 AUD
Retailer 7$491 AUD
MOH London$1,130 AUD
Retailer 3$1,774 AUD

19 data points across 12 retailers

11 retailers$124 AUD to $1,130 AUD

A
Cheapest Retailer
-
$124 AUD
$87 USD
B+
Retailer 2
-
$142 AUD
$100 USD
View
Retailer 3
-
$162 AUD
$114 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$162 AUD
$114 USD
View
B+
Retailer 5
-
$242 AUD
$170 USD
View
B
Retailer 6
-
$292 AUD
HK$1,600 HKD
View
B
Retailer 7
-
$325 AUD
$228 USD
View
B
Retailer 8
-
$392 AUD
£217 GBP
View
B
Retailer 9
-
$473 AUD
$332 USD
View
C
Retailer 10
-
$491 AUD
$345 USD
View
Most Expensive
C
MOH London
LG544242229 · Oct 29
$1,130 AUD
£625 GBP
View
10 more retailers have this diamond
Prices start from $124 AUDSave up to $1,006 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.

A
0.31ct Marquise
$124 AUD