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Round|Lab Grown|IGI

0.50ct D SI1 Round Lab Grown Diamond

VG • D/SI1 • IGI LG407915301

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407915301

Diamond specifications and retailer prices

From $658 NZD
As of November 5, 2026
Save $747 NZD (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,393 NZD at MOH London · As of November 3, 2026
View at MOH London

About this 0.5ct lab-grown round diamond

This 0.5ct lab-grown round sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG407915301 or 407915301. Listed at 12 retailers as of November 5, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.50
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.8°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407915301
Dimensions5.03 × 4.99 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by high pressure high temperature process (HPHT) Type II
Top View
5.03 mm4.99 mm0.50 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG407915301
Side View
Table 56.0%Crown 36.8°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,393 NZD|Low: $658 NZD|High: $3,434 NZD|Avg: $1,396 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$658 NZD
Retailer 5$701 NZD
Retailer 8$783 NZD
Retailer 9$784 NZD
Retailer 6$868 NZD
Retailer 7$1,379 NZD
Retailer 2$1,405 NZD
Retailer 3$1,548 NZD
Retailer 4$2,435 NZD
MOH London$3,393 NZD

45 data points across 10 retailers

12 retailers$658 NZD to $1,405 NZD

B+
Cheapest Retailer
-
$658 NZD
B
Retailer 2
-
$701 NZD
View
B
Retailer 3
-
$783 NZD
View
Final sale: no returns
B
Retailer 4
-
$784 NZD
View
Retailer 5
-
$868 NZD
View
Price last confirmed 12 days ago
B
Retailer 6
-
$868 NZD
View
B
Retailer 7
-
$1,379 NZD
View
B
Retailer 8
-
$1,405 NZD
View
Retailer 9
-
$1,548 NZD
View
Price last confirmed 8 days ago
Retailer 10
-
$2,435 NZD
View
Price under review
Retailer 11
-
$2,791 NZD
View
Price under review
Most Expensive
MOH London
LG407915301 · Nov 3
$3,393 NZD
£1,502 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $658 NZDSave up to $747 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.

B+
0.50ct Round
$658 NZD