Radiant|Natural|GIA

1.50ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 6555386165

Certificate GIA 6555386165

Diamond specifications and retailer prices

From $5,766 USD
As of November 2, 2026
Save $5,079 USD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $10,845 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 6555386165. Listed at 9 retailers as of October 30, 2026, with prices from $5,766 to $10,845, a $5,079 spread on the same certified stone. NZ Jewellers lists it at $10,845. 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
FluorescenceFaint
Crown angle52.82°
Pavilion angle37.2°
OriginNatural
Grading LabGIA
CertificateGIA 6555386165
Dimensions7.41 × 5.78 × 4.00 mm
L/W Ratio1.28
Girdle conditionVery Thick
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.41 mm5.78 mm1.50 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555386165
Side View
Table 73.0%Crown 52.82°Girdle: THK-VTKPavilion 37.2°CuletDepth 69.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $10,845 USD|Low: $5,130 USD|High: $11,518 USD|Avg: $6,827 USD|-5.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 13$5,130 USD
Retailer 3$5,641 USD
Retailer 10$5,766 USD
Retailer 9$6,025 USD
Retailer 6$6,066 USD
Retailer 11$6,190 USD
Retailer 5$6,253 USD
Retailer 12$6,348 USD
Retailer 2$6,484 USD
Retailer 7$6,484 USD
Retailer 4$6,831 USD
Retailer 8$9,553 USD
NZ Jewellers$10,845 USD

20 data points across 13 retailers

9 retailers$5,766 USD to $10,845 USD

Retailer 1
-
$5,130 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$5,766 USD
View
A
Retailer 3
-
$6,025 USD
View
A
Retailer 4
-
$6,066 USD
£4,777 GBP
View
A
Retailer 5
-
$6,190 USD
View
B+
Retailer 6
-
$6,484 USD
View
B+
Retailer 7
-
$6,484 USD
View
B
Retailer 8
-
$9,553 USD
£7,522 GBP
View
Most Expensive
B
NZ Jewellers
c2bcb785-9426-42a7-81cc-f3d64e6561b1 · Oct 30
$10,845 USD
View
8 more retailers have this diamond
Prices start from $5,766 USDSave up to $5,079 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
$5,766 USD