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Round|Lab Grown|IGI

0.59ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG499128234

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499128234

Diamond specifications and retailer prices

From $587 NZD
As of November 5, 2026
Save $1,782 NZD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,149 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 0.59ct lab-grown round diamond

This 0.59ct lab-grown round sits in the half to three-quarter carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499128234 or 499128234. Listed at 11 retailers as of November 4, 2026, with a 304% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.59
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499128234
Dimensions5.39 × 5.35 × 3.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
5.39 mm5.35 mm0.59 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499128234
Side View
Table 60.0%Crown 35.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.8%

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: $3,149 NZD|Low: $587 NZD|High: $3,197 NZD|Avg: $1,360 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
Retailer 12
November 5, 2026
Retailer 2$587 NZD
Retailer 9$729 NZD
Retailer 10$756 NZD
Retailer 6$808 NZD
Retailer 3$815 NZD
Retailer 11$1,158 NZD
Retailer 8$1,291 NZD
Retailer 5$1,450 NZD
Retailer 12$1,507 NZD
Retailer 4$1,692 NZD
Retailer 7$2,369 NZD
MOH London$3,149 NZD

21 data points across 12 retailers

11 retailers$587 NZD to $2,369 NZD

B+
Cheapest Retailer
-
$587 NZD
B+
Retailer 2
-
$651 NZD
View
B+
Retailer 3
-
$729 NZD
View
Final sale: no returns
B+
Retailer 4
-
$756 NZD
View
Retailer 5
-
$808 NZD
View
Price last confirmed 12 days ago
B+
Retailer 6
-
$808 NZD
View
B
Retailer 7
-
$1,291 NZD
View
Retailer 8
-
$1,450 NZD
View
Price last confirmed 8 days ago
B
Retailer 9
-
$2,369 NZD
View
Retailer 10
-
$2,599 NZD
View
Price last confirmed 13 days ago
Most Expensive
MOH London
LG499128234 · Nov 5
$3,149 NZD
£1,394 GBP
View
Price under review
10 more retailers have this diamond
Prices start from $587 NZDSave up to $1,782 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+
0.59ct Round
$587 NZD