Radiant|Lab Grown|IGI

1.53ct D SI1 Radiant Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From $311 USD
£245 GBP
As of October 30, 2026
Save $214 USD (41%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $525 USD 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 $311 to $525, a $214 spread on the same certified stone. MoiMoi Australia lists it at $525. 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
Color
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: Oct 30
Current: $525 USD|Low: $309 USD|High: $527 USD|Avg: $350 USD|-0.2%
MoiMoi Australia
Retailer 2
October 30, 2026
Retailer 2$311 USD
MoiMoi Australia$525 USD

32 data points across 2 retailers

2 retailers$311 USD to $525 USD

B+
Cheapest Retailer
-
$311 USD
£245 GBP
Most Expensive
B
MoiMoi Australia
873742425 · Oct 28
$525 USD
A$808 AUD
View
1 more retailer has this diamond
Prices start from $311 USDSave up to $214 USD

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
$311 USD