CaratHunter
Plans
Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6452477908

Certificate GIA 6452477908

Diamond specifications and retailer prices

From $7,655 AUD
As of November 6, 2026
Save $9,462 AUD (55%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $17,118 AUD at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

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 6452477908. Listed at 23 retailers as of November 5, 2026, with prices from $7,655 to $17,118, a $9,462 spread on the same certified stone. Diamond Quarter lists it at $17,118. 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 angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6452477908
Dimensions7.33 × 7.28 × 4.51 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.33 mm7.28 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452477908
Side View
Table 62.0%Crown 33°Girdle: ThickPavilion 41.6°Culet: NoneDepth 61.7%

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 6
Current: $11,150 AUD|Low: $7,655 AUD|High: $17,104 AUD|Avg: $10,697 AUD|+1.7%
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
November 6, 2026
Retailer 15$7,655 AUD
Retailer 4$8,108 AUD
Retailer 9$8,550 AUD
Retailer 6$8,616 AUD
Retailer 16$9,125 AUD
Retailer 2$9,265 AUD
Retailer 8$9,265 AUD
Retailer 17$9,265 AUD
Retailer 12$9,646 AUD
Retailer 3$9,926 AUD
Retailer 5$10,690 AUD
Retailer 10$11,017 AUD
Retailer 1$11,150 AUD
Retailer 11$11,271 AUD
Retailer 18$11,271 AUD
Retailer 13$12,477 AUD
Retailer 14$15,027 AUD
Retailer 7$17,104 AUD

34 data points across 18 retailers

23 retailers$7,655 AUD to $17,118 AUD

A
Cheapest Retailer
-
$7,655 AUD
Retailer 2
-
$7,958 AUD
View
Price last confirmed 82 days ago
B+
Retailer 3
-
$8,080 AUD
View
B+
Retailer 4
-
$8,108 AUD
View
B+
Retailer 5
-
$8,550 AUD
View
Final sale: no returns
B+
Retailer 6
-
$8,616 AUD
View
B+
Retailer 7
-
$9,125 AUD
View
B+
Retailer 8
-
$9,265 AUD
View
Retailer 9
-
$9,265 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$9,265 AUD
View
B+
Retailer 11
-
$9,646 AUD
View
Retailer 12
-
$9,926 AUD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$10,167 AUD
View
B
Retailer 14
-
$10,463 AUD
View
B
Retailer 15
-
$10,690 AUD
View
B+
Retailer 16
-
$11,017 AUD
View
B+
Retailer 17
-
$11,150 AUD
View
Retailer 18
-
$11,271 AUD
View
Price last confirmed 14 days ago
B+
Retailer 19
-
$11,271 AUD
View
B
Retailer 20
-
$12,477 AUD
View
B
Retailer 21
-
$15,027 AUD
View
B
Retailer 22
-
$17,104 AUD
View
Most Expensive
B
Diamond Quarter
1.5SI1H6408683CN · Nov 5
$17,118 AUD
£9,261 GBP
View
22 more retailers have this diamond
Prices start from $7,655 AUDSave up to $9,462 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
$7,655 AUD