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Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 1545488189

Certificate GIA 1545488189

Diamond specifications and retailer prices

From $7,282 NZD
$4,104 USD
As of November 1, 2026
Save $7,845 NZD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $16,623 NZD at NZ Jewellers · As of September 25, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545488189. Listed at 21 retailers as of November 1, 2026, with a 108% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle34.1°
OriginNatural
Grading LabGIA
CertificateGIA 1545488189
Dimensions7.30 × 5.60 × 3.90 mm
L/W Ratio1.30
Girdle conditionPolished
Top View
7.30 mm5.60 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545488189
Side View
Table 70.0%CrownGirdle: ThickPavilion 34.1°Culet: NoneDepth 69.7%

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 1
Current: $7,290 NZD|Low: $7,177 NZD|High: $15,510 NZD|Avg: $9,764 NZD|+0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 7$7,282 NZD
Retailer 1$7,290 NZD
Retailer 17$7,686 NZD
Retailer 15$8,046 NZD
Retailer 9$8,120 NZD
Retailer 3$8,154 NZD
Retailer 10$8,162 NZD
Retailer 18$8,516 NZD
Retailer 6$8,561 NZD
Retailer 19$8,605 NZD
Retailer 13$8,685 NZD
Retailer 5$9,166 NZD
Retailer 16$9,389 NZD
Retailer 11$9,827 NZD
Retailer 14$10,887 NZD
Retailer 12$11,693 NZD
Retailer 4$11,751 NZD
Retailer 8$15,065 NZD
Retailer 2$15,127 NZD

24 data points across 19 retailers

21 retailers$7,282 NZD to $15,127 NZD

A
Cheapest Retailer
-
$7,282 NZD
$4,104 USD
A
Retailer 2
-
$7,290 NZD
HK$32,100 HKD
View
A
Retailer 3
-
$7,686 NZD
$4,332 USD
View
A
Retailer 4
-
$8,046 NZD
$4,535 USD
View
Final sale: no returns
A
Retailer 5
-
$8,120 NZD
$4,576 USD
View
A
Retailer 6
-
$8,154 NZD
€4,377 EUR
View
A
Retailer 7
-
$8,162 NZD
$4,600 USD
View
A
Retailer 8
-
$8,516 NZD
A$7,384 AUD
View
A
Retailer 9
-
$8,561 NZD
$4,825 USD
View
A
Retailer 10
-
$8,605 NZD
$4,850 USD
View
A
Retailer 11
-
$8,685 NZD
$4,895 USD
View
A
Retailer 12
-
$9,166 NZD
$5,166 USD
View
A
Retailer 13
-
$9,389 NZD
£4,166 GBP
View
Retailer 14
-
$9,827 NZD
A$8,521 AUD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
$9,870 NZD
A$8,558 AUD
View
B+
Retailer 16
-
$10,887 NZD
€5,844 EUR
View
B+
Retailer 17
-
$11,693 NZD
$6,590 USD
View
B+
Retailer 18
-
$11,751 NZD
ZAR 106,994 ZAR
View
Retailer 19
-
$15,065 NZD
$8,491 USD
View
Price last confirmed 9 days ago
B
Retailer 20
-
$15,127 NZD
£6,713 GBP
View
Most Expensive
NZ Jewellers
c6a6288c-2c3d-4345-81ca-3b631b6af0d9 · Sep 25
$16,623 NZD
$9,369 USD
View
Price last confirmed 38 days ago
20 more retailers have this diamond
Prices start from $7,282 NZDSave up to $7,845 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
$7,282 NZD