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Radiant|Lab Grown|IGI

1.54ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG474120572

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

Certificate IGI LG474120572

Diamond specifications and retailer prices

From $273 AUD
$192 USD
As of October 27, 2026
Save $2,346 AUD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,619 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.54ct lab-grown radiant diamond

This 1.54ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG474120572 or 474120572. Listed at 11 retailers as of October 27, 2026, with prices from $273 to $2,619, a $2,346 spread on the same certified stone. Do Amore Diamonds lists it at $2,619. 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

1.54
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.9°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG474120572
Dimensions7.43 × 5.89 × 3.94 mm
L/W Ratio1.26
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
7.43 mm5.89 mm1.54 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG474120572
Side View
Table 60.0%Crown 44.9°Girdle: MED-STKPavilion 30.9°Culet: NoneDepth 66.9%

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: Oct 27
Current: $2,619 AUD|Low: $152 AUD|High: $2,648 AUD|Avg: $1,008 AUD|-1.1%
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
October 29, 2026
Retailer 5$152 AUD
Retailer 8$273 AUD
Retailer 11$306 AUD
Retailer 6$418 AUD
Retailer 9$591 AUD
Retailer 3$667 AUD
Retailer 13$783 AUD
Retailer 4$792 AUD
Retailer 7$1,092 AUD
Retailer 2$1,506 AUD
Retailer 10$1,822 AUD
Retailer 12$2,064 AUD
Do Amore Diamonds$2,619 AUD

38 data points across 13 retailers

11 retailers$273 AUD to $2,619 AUD

A
Cheapest Retailer
-
$273 AUD
$192 USD
A
Retailer 2
-
$306 AUD
$215 USD
View
Final sale: no returns
A
Retailer 3
-
$316 AUD
$222 USD
View
A
Retailer 4
-
$418 AUD
£231 GBP
View
B+
Retailer 5
-
$591 AUD
$415 USD
View
B
Retailer 6
-
$1,092 AUD
$767 USD
View
B
Retailer 7
-
$1,202 AUD
$844 USD
View
B
Retailer 8
-
$1,506 AUD
£833 GBP
View
B
Retailer 9
-
$1,822 AUD
$1,280 USD
View
B
Retailer 10
-
$2,064 AUD
$1,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-C919A0841 · Oct 29
$2,619 AUD
$1,840 USD
View
10 more retailers have this diamond
Prices start from $273 AUDSave up to $2,346 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
1.54ct Radiant
$273 AUD