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Radiant|Lab Grown|IGI

1.01ct D SI1 Radiant Lab Grown Diamond

ID • D/SI1 • IGI LG591396148

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

Certificate IGI LG591396148

Diamond specifications and retailer prices

From $199 AUD
$140 USD
As of October 30, 2026
Save $1,228 AUD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,427 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.01ct lab-grown radiant diamond

This 1.01ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG591396148 or 591396148. Listed at 19 retailers as of October 30, 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

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591396148
Dimensions7.19 × 4.89 × 3.21 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.19 mm4.89 mm1.01 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591396148
Side View
Table 65.0%Crown 40.3°Girdle: Slightly ThickPavilionCulet: NoneDepth 65.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $420 AUD|Low: $192 AUD|High: $1,170 AUD|Avg: $523 AUD|+3.7%
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
November 1, 2026
Retailer 13$199 AUD
Retailer 6$224 AUD
Retailer 3$232 AUD
Retailer 4$248 AUD
Retailer 15$248 AUD
Retailer 7$339 AUD
Retailer 1$420 AUD
Retailer 8$439 AUD
Retailer 10$470 AUD
Retailer 5$596 AUD
Retailer 12$631 AUD
Retailer 2$796 AUD
Retailer 11$804 AUD
Retailer 14$911 AUD
Retailer 9$1,163 AUD

44 data points across 15 retailers

19 retailers$199 AUD to $1,427 AUD

A
Cheapest Retailer
-
$199 AUD
$140 USD
A
Retailer 2
-
$224 AUD
$157 USD
View
Final sale: no returns
A
Retailer 3
-
$232 AUD
$163 USD
View
A
Retailer 4
-
$248 AUD
$174 USD
View
A
Retailer 5
-
$248 AUD
$174 USD
View
B+
Retailer 6
-
$339 AUD
$238 USD
View
A
Retailer 7
-
$420 AUD
£232 GBP
View
A
Retailer 8
-
$439 AUD
€294 EUR
View
A
Retailer 9
-
$453 AUD
$318 USD
View
A
Retailer 10
-
$470 AUD
£260 GBP
View
B+
Retailer 11
-
$596 AUD
$419 USD
View
B+
Retailer 12
-
$631 AUD
$443 USD
View
B+
Retailer 13
-
$687 AUD
£380 GBP
View
B+
Retailer 14
-
$796 AUD
$559 USD
View
Retailer 15
-
$804 AUD
$565 USD
View
Price last confirmed 11 days ago
B
Retailer 16
-
$875 AUD
$614 USD
View
B
Retailer 17
-
$911 AUD
$640 USD
View
B
Retailer 18
-
$1,163 AUD
£643 GBP
View
Most Expensive
B
Reve Diamonds
86AE2B38E · Oct 30
$1,427 AUD
$1,003 USD
View
18 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
1.01ct Radiant
$199 AUD