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0.30ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG480170185

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480170185

Diamond specifications and retailer prices

From $310 NZD
$174 USD
As of October 29, 2026
Save $1,492 NZD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,802 NZD at MOH London · As of October 26, 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG480170185 or 480170185. Listed at 11 retailers as of October 26, 2026, with prices from $310 to $1,802, a $1,492 spread on the same certified stone. MOH London lists it at $1,802. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle37.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480170185
Dimensions4.21 × 4.25 × 2.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
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
4.21 mm4.25 mm0.30 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG480170185
Side View
Table 55.0%Crown 37.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 64.3%

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: $1,802 NZD|Low: $185 NZD|High: $1,823 NZD|Avg: $632 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 3$185 NZD
Retailer 5$310 NZD
Retailer 11$360 NZD
Retailer 6$374 NZD
Retailer 7$385 NZD
Retailer 10$385 NZD
Retailer 8$687 NZD
Retailer 2$688 NZD
Retailer 4$785 NZD
Retailer 9$1,237 NZD
MOH London$1,802 NZD

43 data points across 11 retailers

11 retailers$310 NZD to $1,802 NZD

A
Cheapest Retailer
-
$310 NZD
$174 USD
B+
Retailer 2
-
$360 NZD
$202 USD
View
B+
Retailer 3
-
$374 NZD
$210 USD
View
B+
Retailer 4
-
$385 NZD
$216 USD
View
B+
Retailer 5
-
$385 NZD
$216 USD
View
B
Retailer 6
-
$687 NZD
$386 USD
View
B
Retailer 7
-
$688 NZD
£304 GBP
View
B
Retailer 8
-
$785 NZD
€420 EUR
View
B
Retailer 9
-
$895 NZD
£396 GBP
View
B
Retailer 10
-
$1,237 NZD
$695 USD
View
Most Expensive
B
MOH London
LG480170185 · Oct 26
$1,802 NZD
£797 GBP
View
10 more retailers have this diamond
Prices start from $310 NZDSave up to $1,492 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
$310 NZD