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0.30ct G SI2 Round Lab Grown Diamond

VG • G/SI2 • IGI LG480171528

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480171528

Diamond specifications and retailer prices

From $259 NZD
$146 USD
As of October 29, 2026
Save $1,248 NZD (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,507 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG480171528 or 480171528. Listed at 10 retailers as of October 29, 2026, with prices from $259 to $1,507, a $1,248 spread on the same certified stone. MOH London lists it at $1,507. 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

0.30
Carat
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480171528
Dimensions4.31 × 4.27 × 2.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
4.31 mm4.27 mm0.30 ctG / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG480171528
Side View
Table 58.0%Crown 37.2°Girdle: THN-MEDPavilion 40.3°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: Oct 29
Current: $1,507 NZD|Low: $248 NZD|High: $1,519 NZD|Avg: $606 NZD|+0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5$259 NZD
Retailer 8$300 NZD
Retailer 6$321 NZD
Retailer 10$351 NZD
Retailer 2$355 NZD
Retailer 7$594 NZD
Retailer 3$671 NZD
Retailer 4$686 NZD
Retailer 11$699 NZD
Retailer 9$797 NZD
MOH London$1,507 NZD

17 data points across 11 retailers

10 retailers$259 NZD to $1,507 NZD

A
Cheapest Retailer
-
$259 NZD
$146 USD
B+
Retailer 2
-
$300 NZD
$169 USD
View
B+
Retailer 3
-
$321 NZD
$181 USD
View
B+
Retailer 4
-
$321 NZD
$181 USD
View
B+
Retailer 5
-
$355 NZD
$200 USD
View
B
Retailer 6
-
$594 NZD
$335 USD
View
B
Retailer 7
-
$686 NZD
€368 EUR
View
B
Retailer 8
-
$699 NZD
£310 GBP
View
B
Retailer 9
-
$1,031 NZD
$581 USD
View
Most Expensive
B
MOH London
LG480171528 · Oct 29
$1,507 NZD
£669 GBP
View
9 more retailers have this diamond
Prices start from $259 NZDSave up to $1,248 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
0.30ct Round
$259 NZD