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0.31ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG815670528

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815670528

Diamond specifications and retailer prices

From $227 NZD
HK$1,000 HKD
As of November 1, 2026
Save $1,195 NZD (84%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,422 NZD at MOH London · As of November 1, 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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815670528 or 815670528. Listed at 5 retailers as of November 1, 2026, with prices from $227 to $1,422, a $1,195 spread on the same certified stone. MOH London lists it at $1,422. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.31
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815670528
Dimensions4.32 × 4.36 × 2.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
4.32 mm4.36 mm0.31 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815670528
Side View
Table 56.0%Crown 34.5°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.9%

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 1
Current: $1,422 NZD|Low: $227 NZD|High: $1,440 NZD|Avg: $544 NZD|-0.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6$227 NZD
Retailer 3$302 NZD
Retailer 2$390 NZD
Retailer 5$406 NZD
Retailer 4$410 NZD
MOH London$1,422 NZD

12 data points across 6 retailers

5 retailers$227 NZD to $1,422 NZD

A
Cheapest Retailer
-
$227 NZD
HK$1,000 HKD
A
Retailer 2
-
$302 NZD
$170 USD
View
A
Retailer 3
-
$390 NZD
$220 USD
View
A
Retailer 4
-
$410 NZD
$231 USD
View
Most Expensive
B
MOH London
LG815670528 · Nov 1
$1,422 NZD
£631 GBP
View
4 more retailers have this diamond
Prices start from $227 NZDSave up to $1,195 NZD

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 Round
$227 NZD