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1.51ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG762572159

Shape and cutting style on the report: Round brilliant

Certificate IGI LG762572159

Diamond specifications and retailer prices

From $329 NZD
As of November 5, 2026
Save $984 NZD (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,313 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG762572159 or 762572159. Listed at 6 retailers as of November 5, 2026, with prices from $329 to $1,313, a $984 spread on the same certified stone. NZ Jewellers lists it at $1,313. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762572159
Dimensions7.30 × 7.33 × 4.53 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.30 mm7.33 mm1.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762572159
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,313 NZD|Low: $329 NZD|High: $2,108 NZD|Avg: $935 NZD|-10.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$329 NZD
Retailer 5$386 NZD
Retailer 2$407 NZD
Retailer 4$413 NZD
Retailer 9$790 NZD
Retailer 6$1,005 NZD
Retailer 7$1,051 NZD
NZ Jewellers$1,313 NZD
Retailer 8$2,108 NZD

9 data points across 9 retailers

6 retailers$329 NZD to $1,313 NZD

A
Cheapest Retailer
-
$329 NZD
A
Retailer 2
-
$386 NZD
View
A
Retailer 3
-
$407 NZD
View
Retailer 4
-
$413 NZD
View
Price last confirmed 12 days ago
B+
Retailer 5
-
$1,005 NZD
View
Most Expensive
B+
NZ Jewellers
282428de-b835-43c3-99ae-12c7b838cf29 · Nov 5
$1,313 NZD
$738 USD
View
5 more retailers have this diamond
Prices start from $329 NZDSave up to $984 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 Round
$329 NZD