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1.51ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG830613026

Shape and cutting style on the report: Round brilliant

Certificate IGI LG830613026

Diamond specifications and retailer prices

From $372 NZD
As of November 4, 2026
Save $1,667 NZD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,038 NZD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

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 LG830613026 or 830613026. Listed at 13 retailers as of November 4, 2026, with prices from $372 to $2,038, a $1,667 spread on the same certified stone. Reve Diamonds lists it at $2,038. 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 angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830613026
Dimensions7.30 × 7.33 × 4.56 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 LG830613026
Side View
Table 58.0%Crown 35.6°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.4%

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 4
Current: $1,332 NZD|Low: $372 NZD|High: $2,155 NZD|Avg: $1,112 NZD|-9.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 6, 2026
Retailer 3$372 NZD
Retailer 12$455 NZD
Retailer 6$551 NZD
Retailer 11$704 NZD
Retailer 7$738 NZD
Retailer 13$744 NZD
Retailer 5$786 NZD
Retailer 10$986 NZD
Retailer 9$1,263 NZD
Retailer 1$1,332 NZD
Retailer 4$1,421 NZD
Retailer 2$1,548 NZD
Retailer 8$1,921 NZD
Reve Diamonds$2,038 NZD

22 data points across 14 retailers

13 retailers$372 NZD to $2,038 NZD

A
Cheapest Retailer
-
$372 NZD
Final sale: no returns
A
Retailer 2
-
$455 NZD
View
B+
Retailer 3
-
$551 NZD
View
A
Retailer 4
-
$704 NZD
View
A
Retailer 5
-
$738 NZD
View
A
Retailer 6
-
$744 NZD
View
B+
Retailer 7
-
$986 NZD
View
B+
Retailer 8
-
$1,263 NZD
View
B+
Retailer 9
-
$1,332 NZD
View
B+
Retailer 10
-
$1,421 NZD
View
B
Retailer 11
-
$1,548 NZD
View
B
Retailer 12
-
$1,921 NZD
View
Most Expensive
B
Reve Diamonds
73E8D75D1 · Nov 6
$2,038 NZD
$1,146 USD
View
12 more retailers have this diamond
Prices start from $372 NZDSave up to $1,667 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
$372 NZD