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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7478417499

Certificate GIA 7478417499

Diamond specifications and retailer prices

From $8,289 AUD
As of November 1, 2026
Save $7,268 AUD (47%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $18,671 AUD at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round 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 and certified by GIA 7478417499. Listed at 25 retailers as of November 1, 2026, with a 88% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7478417499
Dimensions7.23 × 7.28 × 4.52 mm
L/W Ratio1.01
Star length50%
Lower girdle70%
Girdle conditionFaceted
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Feather
Top View
7.23 mm7.28 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7478417499
Side View
Table 59.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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: $10,351 AUD|Low: $7,359 AUD|High: $15,746 AUD|Avg: $10,712 AUD|-0.1%
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
November 6, 2026
Retailer 12$8,289 AUD
Retailer 13$8,831 AUD
Retailer 5$9,335 AUD
Retailer 2$9,336 AUD
Retailer 11$9,365 AUD
Retailer 10$10,303 AUD
Retailer 1$10,351 AUD
Retailer 4$10,477 AUD
Retailer 14$10,763 AUD
Retailer 6$11,207 AUD
Retailer 3$11,252 AUD
Retailer 8$11,866 AUD
Retailer 7$13,621 AUD
Retailer 9$15,557 AUD

39 data points across 14 retailers

25 retailers$8,289 AUD to $15,557 AUD

A
Cheapest Retailer
-
$8,289 AUD
B+
Retailer 2
-
$8,668 AUD
View
B+
Retailer 3
-
$8,820 AUD
View
B+
Retailer 4
-
$8,831 AUD
View
B+
Retailer 5
-
$8,941 AUD
View
B+
Retailer 6
-
$9,365 AUD
View
B+
Retailer 7
-
$9,943 AUD
View
Retailer 8
-
$10,114 AUD
View
Price last confirmed 36 days ago
Retailer 9
-
$10,245 AUD
View
Price last confirmed 14 days ago
Retailer 10
-
$10,269 AUD
View
Price last confirmed 38 days ago
B+
Retailer 11
-
$10,303 AUD
View
Retailer 12
-
$10,303 AUD
View
Price last confirmed 23 days ago
Retailer 13
-
$10,303 AUD
View
Price last confirmed 35 days ago
B+
Retailer 14
-
$10,351 AUD
View
B+
Retailer 15
-
$10,477 AUD
View
Retailer 16
-
$10,763 AUD
View
Price last confirmed 15 days ago
B+
Retailer 17
-
$11,207 AUD
View
B+
Retailer 18
-
$11,207 AUD
View
B+
Retailer 19
-
$11,252 AUD
View
B+
Retailer 20
-
$11,585 AUD
View
Retailer 21
-
$11,669 AUD
View
Price last confirmed 38 days ago
B+
Retailer 22
-
$11,866 AUD
View
B
Retailer 23
-
$13,621 AUD
View
B
Retailer 24
-
$15,557 AUD
View
Most Expensive
NZ Jewellers
971b4a7f-aa71-426e-a8e1-f21f5d602583 · Sep 26
$18,671 AUD
$12,829 USD
View
Price last confirmed 40 days ago
24 more retailers have this diamond
Prices start from $8,289 AUDSave up to $7,268 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 Round
$8,289 AUD