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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7562399825

Certificate GIA 7562399825

Diamond specifications and retailer prices

From $6,897 AUD
As of November 5, 2026
Save $6,296 AUD (48%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $14,500 AUD at Queensmith · As of October 15, 2026
View at Queensmith

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 7562399825. Listed at 26 retailers as of November 4, 2026, with a 91% 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 angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7562399825
Dimensions7.36 × 7.32 × 4.44 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Cloud, Indented Natural, Natural
Top View
7.36 mm7.32 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7562399825
Side View
Table 61.0%Crown 34°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.5%

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 5
Current: $14,500 AUD|Low: $6,897 AUD|High: $14,500 AUD|Avg: $9,651 AUD|+2.2%
Queensmith
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
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 6, 2026
Retailer 9$6,897 AUD
Retailer 21$7,094 AUD
Retailer 6$7,097 AUD
Retailer 5$7,185 AUD
Retailer 23$7,508 AUD
Retailer 20$7,866 AUD
Retailer 8$8,037 AUD
Retailer 11$8,115 AUD
Retailer 18$8,133 AUD
Retailer 2$8,280 AUD
Retailer 13$8,422 AUD
Retailer 12$8,581 AUD
Retailer 3$9,082 AUD
Retailer 14$9,082 AUD
Retailer 15$9,108 AUD
Retailer 16$9,140 AUD
Retailer 10$9,202 AUD
Retailer 7$9,387 AUD
Retailer 19$9,619 AUD
Retailer 17$10,956 AUD
Retailer 4$13,010 AUD
Retailer 22$13,193 AUD
Queensmith$14,500 AUD

21 data points across 23 retailers

26 retailers$6,897 AUD to $13,193 AUD

A
Cheapest Retailer
-
$6,897 AUD
A
Retailer 2
-
$7,094 AUD
View
A
Retailer 3
-
$7,097 AUD
View
A
Retailer 4
-
$7,185 AUD
View
A
Retailer 5
-
$7,386 AUD
View
A
Retailer 6
-
$7,508 AUD
View
Final sale: no returns
Retailer 7
-
$7,676 AUD
View
Price last confirmed 29 days ago
A
Retailer 8
-
$7,866 AUD
View
B+
Retailer 9
-
$8,037 AUD
View
Retailer 10
-
$8,115 AUD
View
Price last confirmed 8 days ago
A
Retailer 11
-
$8,133 AUD
View
B+
Retailer 12
-
$8,280 AUD
View
B+
Retailer 13
-
$8,422 AUD
View
B+
Retailer 14
-
$8,581 AUD
View
B+
Retailer 15
-
$9,082 AUD
View
B+
Retailer 16
-
$9,082 AUD
View
Retailer 17
-
$9,108 AUD
View
Price last confirmed 27 days ago
Retailer 18
-
$9,140 AUD
View
Price last confirmed 22 days ago
B+
Retailer 19
-
$9,202 AUD
View
Retailer 20
-
$9,214 AUD
View
Price last confirmed 29 days ago
B+
Retailer 21
-
$9,387 AUD
View
B+
Retailer 22
-
$9,619 AUD
View
B
Retailer 23
-
$10,956 AUD
View
B
Retailer 24
-
$13,010 AUD
View
B
Retailer 25
-
$13,193 AUD
View
Most Expensive
Queensmith
7562399825 · Oct 15
$14,500 AUD
£7,845 GBP
View
Price last confirmed 22 days ago
25 more retailers have this diamond
Prices start from $6,897 AUDSave up to $6,296 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
$6,897 AUD