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Radiant|Natural|GIA

1.50ct F SI1 Radiant Natural Diamond

ID • F/SI1 • GIA 6555386165

Certificate GIA 6555386165

Diamond specifications and retailer prices

From $10,248 NZD
$5,766 USD
As of November 2, 2026
Save $9,027 NZD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $19,275 NZD at NZ Jewellers · As of November 3, 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 November 2, 2026, with prices from $10,248 to $19,275, a $9,027 spread on the same certified stone. NZ Jewellers lists it at $19,275. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $19,275 NZD|Low: $9,118 NZD|High: $20,471 NZD|Avg: $12,122 NZD|-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 3, 2026
Retailer 13$9,118 NZD
Retailer 3$10,026 NZD
Retailer 10$10,248 NZD
Retailer 9$10,708 NZD
Retailer 6$10,782 NZD
Retailer 11$11,001 NZD
Retailer 5$11,113 NZD
Retailer 12$11,282 NZD
Retailer 2$11,524 NZD
Retailer 7$11,524 NZD
Retailer 4$12,141 NZD
Retailer 8$16,978 NZD
NZ Jewellers$19,275 NZD

21 data points across 13 retailers

9 retailers$10,248 NZD to $19,275 NZD

Retailer 1
-
$9,118 NZD
$5,130 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$10,248 NZD
$5,766 USD
View
A
Retailer 3
-
$10,708 NZD
$6,025 USD
View
A
Retailer 4
-
$10,782 NZD
£4,777 GBP
View
A
Retailer 5
-
$11,001 NZD
$6,190 USD
View
B+
Retailer 6
-
$11,524 NZD
$6,484 USD
View
B+
Retailer 7
-
$11,524 NZD
$6,484 USD
View
B
Retailer 8
-
$16,978 NZD
£7,522 GBP
View
Most Expensive
B
NZ Jewellers
98c30b6f-645e-4480-80ab-902fe16e71df · Nov 3
$19,275 NZD
$10,845 USD
View
8 more retailers have this diamond
Prices start from $10,248 NZDSave up to $9,027 NZD

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
$10,248 NZD