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Round|Natural|GIA

1.50ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6495725313

Certificate GIA 6495725313

Diamond specifications and retailer prices

From $9,557 AUD
As of November 1, 2026
Save $11,852 AUD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $21,409 AUD at NZ Jewellers · As of November 5, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6495725313. Listed at 19 retailers as of November 1, 2026, with prices from $9,557 to $21,409, a $11,852 spread on the same certified stone. NZ Jewellers lists it at $21,409. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6495725313
Dimensions7.37 × 7.34 × 4.52 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
7.37 mm7.34 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6495725313
Side View
Table 54.0%Crown 34.5°Girdle: MED-STKPavilion 40.6°Culet: Very SmallDepth 61.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $21,409 AUD|Low: $9,557 AUD|High: $21,409 AUD|Avg: $12,996 AUD
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 12$9,557 AUD
Retailer 3$9,690 AUD
Retailer 5$10,022 AUD
Retailer 15$10,584 AUD
Retailer 17$10,705 AUD
Retailer 6$11,597 AUD
Retailer 2$11,667 AUD
Retailer 13$11,775 AUD
Retailer 14$12,279 AUD
Retailer 7$12,742 AUD
Retailer 16$12,742 AUD
Retailer 8$13,171 AUD
Retailer 10$13,206 AUD
Retailer 9$13,381 AUD
Retailer 4$14,096 AUD
Retailer 11$17,791 AUD
NZ Jewellers$21,409 AUD

42 data points across 17 retailers

19 retailers$9,557 AUD to $21,409 AUD

B+
Cheapest Retailer
-
$9,557 AUD
B+
Retailer 2
-
$9,690 AUD
View
B+
Retailer 3
-
$9,978 AUD
View
B+
Retailer 4
-
$10,022 AUD
View
B
Retailer 5
-
$10,584 AUD
View
Retailer 6
-
$10,705 AUD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$11,597 AUD
View
B+
Retailer 8
-
$11,667 AUD
View
B+
Retailer 9
-
$11,775 AUD
View
B
Retailer 10
-
$12,279 AUD
View
B
Retailer 11
-
$12,742 AUD
View
B
Retailer 12
-
$12,742 AUD
View
B
Retailer 13
-
$13,171 AUD
View
B
Retailer 14
-
$13,206 AUD
View
B
Retailer 15
-
$13,381 AUD
View
Retailer 16
-
$14,096 AUD
View
Price last confirmed 14 days ago
B
Retailer 17
-
$17,791 AUD
View
B
Retailer 18
-
$20,046 AUD
View
Most Expensive
B
NZ Jewellers
3c028a4d-0006-4d6a-9766-fb3c3579dfc3 · Nov 5
$21,409 AUD
$14,987 USD
View
18 more retailers have this diamond
Prices start from $9,557 AUDSave up to $11,852 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.

B+
1.50ct Round
$9,557 AUD