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Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG490176326

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG490176326

Diamond specifications and retailer prices

From $194 AUD
As of November 6, 2026
Save $1,669 AUD (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,863 AUD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant 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 LG490176326 or 490176326. Listed at 20 retailers as of November 6, 2026, with prices from $194 to $1,863, a $1,669 spread on the same certified stone. Do Amore Diamonds lists it at $1,863. 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

1.00
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490176326
Dimensions7.05 × 4.97 × 3.39 mm
L/W Ratio1.42
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
7.05 mm4.97 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490176326
Side View
Table 63.0%Crown 40.1°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 68.2%

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 6
Current: $1,863 AUD|Low: $186 AUD|High: $1,863 AUD|Avg: $600 AUD
Do Amore Diamonds
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
November 6, 2026
Retailer 9$194 AUD
Retailer 7$217 AUD
Retailer 14$224 AUD
Retailer 15$240 AUD
Retailer 3$345 AUD
Retailer 5$375 AUD
Retailer 10$453 AUD
Retailer 2$467 AUD
Retailer 13$502 AUD
Retailer 12$575 AUD
Retailer 6$800 AUD
Retailer 4$815 AUD
Retailer 8$851 AUD
Retailer 11$1,234 AUD
Do Amore Diamonds$1,863 AUD

43 data points across 15 retailers

20 retailers$194 AUD to $1,863 AUD

A
Cheapest Retailer
-
$194 AUD
A
Retailer 2
-
$217 AUD
View
Final sale: no returns
A
Retailer 3
-
$224 AUD
View
A
Retailer 4
-
$240 AUD
View
A
Retailer 5
-
$319 AUD
View
B+
Retailer 6
-
$375 AUD
View
A
Retailer 7
-
$409 AUD
View
A
Retailer 8
-
$453 AUD
View
A
Retailer 9
-
$467 AUD
View
A
Retailer 10
-
$502 AUD
View
B+
Retailer 11
-
$575 AUD
View
B+
Retailer 12
-
$598 AUD
View
B
Retailer 13
-
$768 AUD
View
B+
Retailer 14
-
$800 AUD
View
B+
Retailer 15
-
$815 AUD
View
B+
Retailer 16
-
$851 AUD
View
B
Retailer 17
-
$1,007 AUD
View
B
Retailer 18
-
$1,105 AUD
View
B
Retailer 19
-
$1,234 AUD
View
Most Expensive
B
Do Amore Diamonds
27-4E1C3A675 · Nov 6
$1,863 AUD
$1,280 USD
View
19 more retailers have this diamond
Prices start from $194 AUDSave up to $1,669 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
1.00ct Radiant
$194 AUD