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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG764604591

Shape and cutting style on the report: Round brilliant

Certificate IGI LG764604591

Diamond specifications and retailer prices

From $199 AUD
As of November 5, 2026
Save $1,228 AUD (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,427 AUD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.05ct lab-grown round diamond

This 1.05ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG764604591 or 764604591. Listed at 20 retailers as of November 4, 2026, with prices from $199 to $1,427, a $1,228 spread on the same certified stone. Reve Diamonds lists it at $1,427. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764604591
Dimensions6.51 × 6.48 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.51 mm6.48 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG764604591
Side View
Table 56.0%Crown 35.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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: $411 AUD|Low: $193 AUD|High: $1,434 AUD|Avg: $583 AUD|+4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Reve Diamonds
November 6, 2026
Retailer 18$199 AUD
Retailer 4$221 AUD
Retailer 16$230 AUD
Retailer 5$246 AUD
Retailer 17$246 AUD
Retailer 1$411 AUD
Retailer 10$413 AUD
Retailer 14$439 AUD
Retailer 6$460 AUD
Retailer 13$583 AUD
Retailer 15$586 AUD
Retailer 12$629 AUD
Retailer 7$684 AUD
Retailer 9$700 AUD
Retailer 3$706 AUD
Retailer 2$791 AUD
Retailer 8$870 AUD
Retailer 11$1,147 AUD
Reve Diamonds$1,427 AUD

42 data points across 19 retailers

20 retailers$199 AUD to $1,427 AUD

A
Cheapest Retailer
-
$199 AUD
A
Retailer 2
-
$221 AUD
View
Final sale: no returns
A
Retailer 3
-
$230 AUD
View
Retailer 4
-
$246 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$246 AUD
View
A
Retailer 6
-
$411 AUD
View
A
Retailer 7
-
$413 AUD
View
A
Retailer 8
-
$439 AUD
View
A
Retailer 9
-
$460 AUD
View
B+
Retailer 10
-
$583 AUD
View
Retailer 11
-
$586 AUD
View
Price last confirmed 12 days ago
Retailer 12
-
$617 AUD
View
Price last confirmed 9 days ago
B+
Retailer 13
-
$629 AUD
View
B
Retailer 14
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$684 AUD
View
B+
Retailer 15
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$700 AUD
View
B+
Retailer 16
-
$706 AUD
View
B
Retailer 17
-
$791 AUD
View
B
Retailer 18
-
$870 AUD
View
B
Retailer 19
-
$1,147 AUD
View
Most Expensive
B
Reve Diamonds
E37388FB0 · Nov 4
$1,427 AUD
$999 USD
View
19 more retailers have this diamond
Prices start from $199 AUDSave up to $1,228 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
1.05ct Round
$199 AUD