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Oval|Lab Grown|IGI

0.51ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG445037644

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037644

Diamond specifications and retailer prices

From $433 NZD
$244 USD
As of October 29, 2026
Save $1,726 NZD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,159 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 0.51ct lab-grown oval diamond

This 0.51ct lab-grown oval sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037644 or 445037644. Listed at 10 retailers as of October 29, 2026, with prices from $433 to $2,159, a $1,726 spread on the same certified stone. MOH London lists it at $2,159. 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

0.51
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037644
Dimensions6.45 × 4.45 × 2.75 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.45 mm4.45 mm0.51 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037644
Side View
Table 56.0%Crown 31.9°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 61.8%

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: $2,159 NZD|Low: $415 NZD|High: $2,174 NZD|Avg: $965 NZD|-0.5%
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 6$433 NZD
Retailer 9$483 NZD
Retailer 7$536 NZD
Retailer 10$536 NZD
Retailer 2$568 NZD
Retailer 8$901 NZD
Retailer 4$1,013 NZD
Retailer 11$1,065 NZD
Retailer 3$1,123 NZD
Retailer 5$1,728 NZD
MOH London$2,159 NZD

18 data points across 11 retailers

10 retailers$433 NZD to $2,159 NZD

A
Cheapest Retailer
-
$433 NZD
$244 USD
A
Retailer 2
-
$483 NZD
$272 USD
View
Final sale: no returns
A
Retailer 3
-
$502 NZD
$283 USD
View
B+
Retailer 4
-
$536 NZD
$302 USD
View
B+
Retailer 5
-
$536 NZD
$302 USD
View
A
Retailer 6
-
$568 NZD
$320 USD
View
B+
Retailer 7
-
$901 NZD
$508 USD
View
B
Retailer 8
-
$1,723 NZD
$971 USD
View
B
Retailer 9
-
$1,728 NZD
$974 USD
View
Most Expensive
B
MOH London
LG445037644 · Oct 29
$2,159 NZD
£958 GBP
View
9 more retailers have this diamond
Prices start from $433 NZDSave up to $1,726 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
0.51ct Oval
$433 NZD