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Oval|Lab Grown|IGI

1.51ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG480147754

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG480147754

Diamond specifications and retailer prices

From $1,419 NZD
$800 USD
As of October 31, 2026
Save $6,010 NZD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,429 NZD at MOH London · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG480147754 or 480147754. Listed at 10 retailers as of October 27, 2026, with prices from $1,419 to $7,429, a $6,010 spread on the same certified stone. MOH London lists it at $7,429. 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
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480147754
Dimensions9.00 × 6.44 × 4.05 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.00 mm6.44 mm1.51 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480147754
Side View
Table 59.5%Crown 32.5°Girdle: STK-THKPavilion 42°Culet: NoneDepth 62.9%

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 31
Current: $7,429 NZD|Low: $1,419 NZD|High: $7,519 NZD|Avg: $3,500 NZD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 27, 2026
Retailer 4$1,419 NZD
Retailer 2$1,991 NZD
Retailer 8$2,166 NZD
Retailer 9$2,229 NZD
Retailer 5$2,308 NZD
Retailer 11$3,300 NZD
Retailer 6$3,675 NZD
Retailer 7$4,328 NZD
Retailer 10$4,684 NZD
Retailer 3$5,168 NZD
MOH London$7,429 NZD

15 data points across 11 retailers

10 retailers$1,419 NZD to $7,429 NZD

A
Cheapest Retailer
-
$1,419 NZD
$800 USD
B+
Retailer 2
-
$1,991 NZD
$1,122 USD
View
A
Retailer 3
-
$2,166 NZD
$1,221 USD
View
A
Retailer 4
-
$2,229 NZD
$1,256 USD
View
Final sale: no returns
Retailer 5
-
$2,308 NZD
$1,301 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,308 NZD
$1,301 USD
View
B
Retailer 7
-
$3,675 NZD
$2,071 USD
View
B
Retailer 8
-
$4,328 NZD
$2,439 USD
View
B
Retailer 9
-
$4,684 NZD
$2,640 USD
View
Most Expensive
B
MOH London
LG480147754 · Oct 27
$7,429 NZD
£3,297 GBP
View
9 more retailers have this diamond
Prices start from $1,419 NZDSave up to $6,010 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
$1,419 NZD