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Oval|Lab Grown|IGI

0.51ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG447001122

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447001122

Diamond specifications and retailer prices

From $486 NZD
$274 USD
As of November 1, 2026
Save $1,934 NZD (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,420 NZD at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001122 or 447001122. Listed at 10 retailers as of November 1, 2026, with prices from $486 to $2,420, a $1,934 spread on the same certified stone. MOH London lists it at $2,420. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle31.7°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001122
Dimensions6.23 × 4.66 × 2.86 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.23 mm4.66 mm0.51 ctI / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG447001122
Side View
Table 60.5%Crown 31.7°Girdle: STK-THKPavilion 42.1°Culet: NoneDepth 61.4%

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: Nov 1
Current: $2,420 NZD|Low: $467 NZD|High: $2,449 NZD|Avg: $1,167 NZD
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 1, 2026
Retailer 6$486 NZD
Retailer 10$545 NZD
Retailer 8$603 NZD
Retailer 11$603 NZD
Retailer 7$639 NZD
Retailer 12$887 NZD
Retailer 9$1,001 NZD
Retailer 2$1,118 NZD
Retailer 3$1,230 NZD
Retailer 5$1,854 NZD
MOH London$2,420 NZD
Retailer 4$2,427 NZD

19 data points across 12 retailers

10 retailers$486 NZD to $2,420 NZD

A
Cheapest Retailer
-
$486 NZD
$274 USD
A
Retailer 2
-
$545 NZD
$307 USD
View
Final sale: no returns
A
Retailer 3
-
$564 NZD
$318 USD
View
B+
Retailer 4
-
$603 NZD
$340 USD
View
Retailer 5
-
$603 NZD
$340 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$639 NZD
$360 USD
View
B
Retailer 7
-
$1,001 NZD
$564 USD
View
B
Retailer 8
-
$1,854 NZD
$1,045 USD
View
B
Retailer 9
-
$1,941 NZD
$1,094 USD
View
Most Expensive
B
MOH London
LG447001122 · Nov 1
$2,420 NZD
£1,074 GBP
View
9 more retailers have this diamond
Prices start from $486 NZDSave up to $1,934 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
$486 NZD