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Round|Natural|GIA

1.50ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6552743522

Certificate GIA 6552743522

Diamond specifications and retailer prices

From $7,328 AUD
As of November 4, 2026
Save $8,231 AUD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $15,559 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 6552743522. Listed at 20 retailers as of November 4, 2026, with prices from $7,328 to $15,559, a $8,231 spread on the same certified stone. NZ Jewellers lists it at $15,559. 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552743522
Dimensions7.26 × 7.29 × 4.57 mm
L/W Ratio1.00
Culet sizeNone
Top View
7.26 mm7.29 mm1.50 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552743522
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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 4
Current: $15,559 AUD|Low: $7,114 AUD|High: $15,559 AUD|Avg: $10,123 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
November 6, 2026
Retailer 9$7,328 AUD
Retailer 5$7,350 AUD
Retailer 4$7,780 AUD
Retailer 11$8,428 AUD
Retailer 12$8,428 AUD
Retailer 13$8,428 AUD
Retailer 6$8,777 AUD
Retailer 3$9,724 AUD
Retailer 7$10,085 AUD
Retailer 2$11,174 AUD
Retailer 8$13,668 AUD
Retailer 10$14,376 AUD
NZ Jewellers$15,559 AUD

31 data points across 13 retailers

20 retailers$7,328 AUD to $15,559 AUD

A
Cheapest Retailer
-
$7,328 AUD
A
Retailer 2
-
$7,350 AUD
View
A
Retailer 3
-
$7,531 AUD
View
B+
Retailer 4
-
$7,780 AUD
View
Final sale: no returns
B+
Retailer 5
-
$8,315 AUD
View
B+
Retailer 6
-
$8,428 AUD
View
Retailer 7
-
$8,428 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$8,428 AUD
View
B+
Retailer 9
-
$8,462 AUD
View
B+
Retailer 10
-
$8,777 AUD
View
B+
Retailer 11
-
$9,028 AUD
View
B+
Retailer 12
-
$9,028 AUD
View
B+
Retailer 13
-
$9,328 AUD
View
B+
Retailer 14
-
$9,724 AUD
View
B+
Retailer 15
-
$10,085 AUD
View
Retailer 16
-
$10,255 AUD
View
Price last confirmed 22 days ago
B+
Retailer 17
-
$11,174 AUD
View
B
Retailer 18
-
$13,668 AUD
View
Retailer 19
-
$14,376 AUD
View
Price last confirmed 9 days ago
Most Expensive
B
NZ Jewellers
4bea73fb-c863-4f00-beb2-34066a12b955 · Nov 5
$15,559 AUD
$10,892 USD
View
19 more retailers have this diamond
Prices start from $7,328 AUDSave up to $8,231 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
$7,328 AUD