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Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

VG • F/SI1 • GIA 5533523871

Certificate GIA 5533523871

Diamond specifications and retailer prices

From $7,331 CAD
As of November 5, 2026
Save $1,378 CAD (16%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,710 CAD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5533523871. Listed at 5 retailers as of November 5, 2026, with prices from $7,331 to $8,710, a $1,378 spread on the same certified stone. Blue Nile lists it at $8,710. 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

1.51
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.2°
Pavilion angle55.2°
OriginNatural
Grading LabGIA
CertificateGIA 5533523871
Dimensions7.68 × 5.99 × 4.07 mm
L/W Ratio1.28
Top View
7.68 mm5.99 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5533523871
Side View
Table 69.0%Crown 46.2°Girdle: STK-THKPavilion 55.2°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $8,710 CAD|Low: $7,275 CAD|High: $8,916 CAD|Avg: $7,950 CAD|-2.3%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 4$7,331 CAD
Retailer 5$7,352 CAD
Retailer 2$7,655 CAD
Retailer 3$8,341 CAD
Blue Nile$8,710 CAD

43 data points across 5 retailers

5 retailers$7,331 CAD to $8,710 CAD

A
Cheapest Retailer
-
$7,331 CAD
A
Retailer 2
-
$7,352 CAD
View
A
Retailer 3
-
$7,655 CAD
View
A
Retailer 4
-
$8,341 CAD
View
Most Expensive
A
Blue Nile
26827868 · Nov 5
$8,710 CAD
$6,192 USD
View
4 more retailers have this diamond
Prices start from $7,331 CADSave up to $1,378 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.

A
1.51ct Radiant
$7,331 CAD