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Radiant|Lab Grown|IGI

1.53ct D SI1 Radiant Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From $441 AUD
£244 GBP
As of November 1, 2026
Save $306 AUD (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $748 AUD at MoiMoi Australia · As of October 28, 2026
View at MoiMoi Australia

About this 1.53ct lab-grown radiant diamond

This 1.53ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by IGI. Listed at 2 retailers as of October 28, 2026, with prices from $441 to $748, a $306 spread on the same certified stone. MoiMoi Australia lists it at $748. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.53
Carat
D
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.00 × 5.79 × 3.80 mm
L/W Ratio1.38
Top View
8.00 mm5.79 mm1.53 ctD / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 64.5%CrownGirdle: MediumPavilionCulet: NoneDepth 65.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $748 AUD|Low: $441 AUD|High: $750 AUD|Avg: $505 AUD|-0.2%
MoiMoi Australia
Retailer 2
November 1, 2026
Retailer 2$441 AUD
MoiMoi Australia$748 AUD

32 data points across 2 retailers

2 retailers$441 AUD to $748 AUD

B+
Cheapest Retailer
-
$441 AUD
£244 GBP
Most Expensive
B
MoiMoi Australia
873742425 · Oct 28
$748 AUD
View
1 more retailer has this diamond
Prices start from $441 AUDSave up to $306 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.

B+
1.53ct Radiant
$441 AUD