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Radiant|Lab Grown|IGI

1.56ct G SI1 Radiant Lab Grown Diamond

EX • G/SI1 • IGI LG605366722

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

Certificate IGI LG605366722

Diamond specifications and retailer prices

From $364 AUD
$255 USD
As of November 1, 2026
Save $1,468 AUD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,832 AUD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.56ct lab-grown radiant diamond

This 1.56ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG605366722 or 605366722. Listed at 16 retailers as of November 1, 2026, with prices from $364 to $1,832, a $1,468 spread on the same certified stone. Reve Diamonds lists it at $1,832. 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

1.56
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle30.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG605366722
Dimensions8.50 × 5.49 × 3.67 mm
L/W Ratio1.55
Culet sizePointed
Top View
8.50 mm5.49 mm1.56 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG605366722
Side View
Table 66.0%Crown 43.3°Girdle: MediumPavilion 30.5°Culet: NoneDepth 66.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $1,066 AUD|Low: $312 AUD|High: $1,638 AUD|Avg: $774 AUD|+11.7%
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
November 2, 2026
Retailer 12$325 AUD
Retailer 6$364 AUD
Retailer 3$378 AUD
Retailer 4$404 AUD
Retailer 13$404 AUD
Retailer 9$674 AUD
Retailer 2$688 AUD
Retailer 10$733 AUD
Retailer 7$755 AUD
Retailer 5$875 AUD
Retailer 1$1,066 AUD
Retailer 11$1,263 AUD
Retailer 14$1,298 AUD
Retailer 8$1,618 AUD

40 data points across 14 retailers

16 retailers$364 AUD to $1,832 AUD

Retailer 1
-
$325 AUD
$228 USD
Price last confirmed 11 days ago
A
Retailer 2
-
$364 AUD
$255 USD
View
Final sale: no returns
Retailer 3
-
$378 AUD
$265 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$404 AUD
$283 USD
View
Price last confirmed 17 days ago
Retailer 5
-
$404 AUD
$283 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$674 AUD
€450 EUR
View
A
Retailer 7
-
$688 AUD
$482 USD
View
A
Retailer 8
-
$733 AUD
$514 USD
View
A
Retailer 9
-
$755 AUD
£416 GBP
View
B+
Retailer 10
-
$875 AUD
$613 USD
View
B+
Retailer 11
-
$1,066 AUD
$747 USD
View
Retailer 12
-
$1,263 AUD
$885 USD
View
Price last confirmed 14 days ago
Retailer 13
-
$1,298 AUD
$910 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$1,373 AUD
$962 USD
View
B
Retailer 15
-
$1,618 AUD
£893 GBP
View
Most Expensive
B
Reve Diamonds
D19BAF116 · Nov 1
$1,832 AUD
$1,284 USD
View
15 more retailers have this diamond
Prices start from $364 AUDSave up to $1,468 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
1.56ct Radiant
$364 AUD