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Round|Lab Grown|IGI

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 $299 AUD
As of November 4, 2026
Save $1,338 AUD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,637 AUD 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 $299 to $1,637, a $1,338 spread on the same certified stone. Reve Diamonds lists it at $1,637. 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: $1,070 AUD|Low: $299 AUD|High: $1,731 AUD|Avg: $893 AUD|-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$299 AUD
Retailer 12$366 AUD
Retailer 6$443 AUD
Retailer 11$566 AUD
Retailer 7$593 AUD
Retailer 13$597 AUD
Retailer 5$631 AUD
Retailer 10$791 AUD
Retailer 9$1,014 AUD
Retailer 1$1,070 AUD
Retailer 4$1,141 AUD
Retailer 2$1,243 AUD
Retailer 8$1,543 AUD
Reve Diamonds$1,637 AUD

22 data points across 14 retailers

13 retailers$299 AUD to $1,637 AUD

A
Cheapest Retailer
-
$299 AUD
Final sale: no returns
A
Retailer 2
-
$366 AUD
View
B+
Retailer 3
-
$443 AUD
View
A
Retailer 4
-
$566 AUD
View
A
Retailer 5
-
$593 AUD
View
A
Retailer 6
-
$597 AUD
View
B+
Retailer 7
-
$791 AUD
View
B+
Retailer 8
-
$1,014 AUD
View
B+
Retailer 9
-
$1,070 AUD
View
B+
Retailer 10
-
$1,141 AUD
View
B
Retailer 11
-
$1,243 AUD
View
B
Retailer 12
-
$1,543 AUD
View
Most Expensive
B
Reve Diamonds
73E8D75D1 · Nov 6
$1,637 AUD
$1,146 USD
View
12 more retailers have this diamond
Prices start from $299 AUDSave up to $1,338 AUD

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
$299 AUD