Radiant|Natural|GIA

1.50ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 6545082926

Certificate GIA 6545082926

Diamond specifications and retailer prices

From $5,498 USD
As of November 2, 2026
Save $117 USD (2%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,615 USD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545082926. Listed at 3 retailers as of November 3, 2026, with a relatively tight 2% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.50
Carat
F
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.88°
Pavilion angle30.89°
OriginNatural
Grading LabGIA
CertificateGIA 6545082926
Dimensions7.16 × 5.65 × 3.89 mm
L/W Ratio1.27
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Indented Natural, Needle, Natural
Top View
7.16 mm5.65 mm1.50 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545082926
Side View
Table 67.0%Crown 47.88°Girdle: ThickPavilion 30.89°Culet: NoneDepth 68.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $5,615 USD|Low: $5,498 USD|High: $6,609 USD|Avg: $6,026 USD|-1.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 2$5,498 USD
Retailer 3$5,498 USD
Blue Nile$5,615 USD
Retailer 5$5,810 USD
Retailer 4$6,195 USD
Retailer 8$6,230 USD
Retailer 6$6,398 USD
Retailer 7$6,609 USD

9 data points across 8 retailers

3 retailers$5,498 USD to $5,615 USD

A
Cheapest Retailer
-
$5,498 USD
A
Retailer 2
-
$5,498 USD
View
Most Expensive
A
Blue Nile
30230750 · Nov 5
$5,615 USD
View
2 more retailers have this diamond
Prices start from $5,498 USDSave up to $117 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.

A
1.50ct Radiant
$5,498 USD