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Radiant|Lab Grown|GIA

1.03ct D SI1 Radiant Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From $1,421 CAD
As of November 5, 2026
Save $459 CAD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,879 CAD at Washington Diamond · As of November 6, 2026
View at Washington Diamond

About this 1.03ct lab-grown radiant diamond

This 1.03ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by GIA. Listed at 2 retailers as of November 5, 2026, with prices from $1,421 to $1,879, a $459 spread on the same certified stone. Washington Diamond lists it at $1,879. 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

1.03
Carat
D
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
Dimensions7.27 × 5.14 × 3.24 mm
L/W Ratio1.41
Top View
7.27 mm5.14 mm1.03 ctD / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCuletDepth 62.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $1,421 CAD|Low: $1,390 CAD|High: $1,879 CAD|Avg: $1,644 CAD|-17.0%
Retailer 1
Washington Diamond
November 6, 2026
Retailer 1$1,421 CAD
Washington Diamond$1,879 CAD

14 data points across 2 retailers

2 retailers$1,421 CAD to $1,879 CAD

B
Cheapest Retailer
-
$1,421 CAD
Most Expensive
C
Washington Diamond
1897048314 · Nov 6
$1,879 CAD
$1,336 USD
View
1 more retailer has this diamond
Prices start from $1,421 CADSave up to $459 CAD

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
1.03ct Radiant
$1,421 CAD