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Radiant|Natural|GIA

1.50ct K SI1 Radiant Natural Diamond

EX • K/SI1 • GIA 7536217123

Certificate GIA 7536217123

Diamond specifications and retailer prices

From $3,883 AUD
As of November 2, 2026
Save $4,440 AUD (53%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,323 AUD 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7536217123. Listed at 7 retailers as of November 2, 2026, with prices from $3,883 to $8,323, a $4,440 spread on the same certified stone. NZ Jewellers lists it at $8,323. 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
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle41.31°
Pavilion angle30.18°
OriginNatural
Grading LabGIA
CertificateGIA 7536217123
Dimensions7.52 × 5.80 × 3.71 mm
L/W Ratio1.30
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Cloud
Top View
7.52 mm5.80 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7536217123
Side View
Table 68.0%Crown 41.31°GirdlePavilion 30.18°CuletDepth 64.0%

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: $8,323 AUD|Low: $3,838 AUD|High: $8,428 AUD|Avg: $4,951 AUD|-1.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8$3,838 AUD
Retailer 4$3,883 AUD
Retailer 2$3,981 AUD
Retailer 7$3,981 AUD
Retailer 3$4,135 AUD
Retailer 6$4,148 AUD
Retailer 9$4,544 AUD
Retailer 5$6,974 AUD
NZ Jewellers$8,323 AUD

28 data points across 9 retailers

7 retailers$3,883 AUD to $8,323 AUD

A
Cheapest Retailer
-
$3,883 AUD
A
Retailer 2
-
$3,981 AUD
View
A
Retailer 3
-
$3,981 AUD
View
A
Retailer 4
-
$4,135 AUD
View
A
Retailer 5
-
$4,148 AUD
View
B+
Retailer 6
-
$6,974 AUD
View
Most Expensive
B
NZ Jewellers
d43f59f3-95ea-4432-9a4c-e2934ceb6a4d · Nov 3
$8,323 AUD
$5,719 USD
View
6 more retailers have this diamond
Prices start from $3,883 AUDSave up to $4,440 AUD

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
$3,883 AUD