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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG780647301

Shape and cutting style on the report: Round brilliant

Certificate IGI LG780647301

Diamond specifications and retailer prices

From $229 AUD
As of November 1, 2026
Save $1,292 AUD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,521 AUD at Reve Diamonds · As of November 1, 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 LG780647301 or 780647301. Listed at 19 retailers as of November 1, 2026, with prices from $229 to $1,521, a $1,292 spread on the same certified stone. Reve Diamonds lists it at $1,521. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780647301
Dimensions6.61 × 6.63 × 3.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.61 mm6.63 mm1.05 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780647301
Side View
Table 59.0%Crown 32.2°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 59.8%

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 1
Current: $483 AUD|Low: $219 AUD|High: $1,521 AUD|Avg: $620 AUD|+9.7%
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
Retailer 14
Retailer 15
Reve Diamonds
November 3, 2026
Retailer 11$229 AUD
Retailer 7$256 AUD
Retailer 15$264 AUD
Retailer 2$283 AUD
Retailer 12$283 AUD
Retailer 5$421 AUD
Retailer 1$483 AUD
Retailer 9$496 AUD
Retailer 6$513 AUD
Retailer 8$550 AUD
Retailer 13$586 AUD
Retailer 14$909 AUD
Retailer 4$960 AUD
Retailer 3$971 AUD
Retailer 10$1,321 AUD
Reve Diamonds$1,521 AUD

36 data points across 16 retailers

19 retailers$229 AUD to $1,521 AUD

A
Cheapest Retailer
-
$229 AUD
A
Retailer 2
-
$256 AUD
View
Final sale: no returns
A
Retailer 3
-
$264 AUD
View
Retailer 4
-
$283 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$283 AUD
View
A
Retailer 6
-
$291 AUD
View
A
Retailer 7
-
$421 AUD
View
B+
Retailer 8
-
$483 AUD
View
B+
Retailer 9
-
$496 AUD
View
B+
Retailer 10
-
$513 AUD
View
B+
Retailer 11
-
$550 AUD
View
Retailer 12
-
$586 AUD
View
Price last confirmed 12 days ago
B+
Retailer 13
-
$631 AUD
View
B
Retailer 14
-
$909 AUD
View
B
Retailer 15
-
$960 AUD
View
B
Retailer 16
-
$971 AUD
View
B
Retailer 17
-
$987 AUD
View
B
Retailer 18
-
$1,321 AUD
View
Most Expensive
B
Reve Diamonds
911778019 · Nov 1
$1,521 AUD
$1,065 USD
View
18 more retailers have this diamond
Prices start from $229 AUDSave up to $1,292 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
$229 AUD