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Oval|Lab Grown|IGI

1.51ct J SI1 Oval Lab Grown Diamond

ID • J/SI1 • IGI LG447001740

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447001740

Diamond specifications and retailer prices

From $1,515 NZD
As of November 6, 2026
Save $7,128 NZD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,644 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447001740 or 447001740. Listed at 11 retailers as of November 5, 2026, with prices from $1,515 to $8,644, a $7,128 spread on the same certified stone. MOH London lists it at $8,644. 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

1.51
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001740
Dimensions8.84 × 6.54 × 4.10 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.84 mm6.54 mm1.51 ctJ / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001740
Side View
Table 60.5%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 6
Current: $8,644 NZD|Low: $1,515 NZD|High: $8,781 NZD|Avg: $4,697 NZD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 2$1,515 NZD
Retailer 3$2,616 NZD
Retailer 6$2,930 NZD
Retailer 4$3,034 NZD
Retailer 7$3,346 NZD
Retailer 9$4,124 NZD
Retailer 5$4,786 NZD
Retailer 8$5,507 NZD
MOH London$8,644 NZD
Retailer 10$8,686 NZD

14 data points across 10 retailers

11 retailers$1,515 NZD to $8,644 NZD

A
Cheapest Retailer
-
$1,515 NZD
B+
Retailer 2
-
$2,616 NZD
View
B+
Retailer 3
-
$2,847 NZD
View
B+
Retailer 4
-
$2,930 NZD
View
Final sale: no returns
Retailer 5
-
$3,034 NZD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$3,034 NZD
View
B
Retailer 7
-
$3,346 NZD
View
B
Retailer 8
-
$4,786 NZD
View
B
Retailer 9
-
$5,507 NZD
View
B
Retailer 10
-
$5,688 NZD
View
Most Expensive
B
MOH London
LG447001740 · Nov 5
$8,644 NZD
£3,773 GBP
View
10 more retailers have this diamond
Prices start from $1,515 NZDSave up to $7,128 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
1.51ct Oval
$1,515 NZD