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Round|Natural|GIA

1.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 6562180528

Certificate GIA 6562180528

Diamond specifications and retailer prices

From $6,493 AUD
As of November 5, 2026
Save $6,827 AUD (51%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $13,319 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

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 6562180528. Listed at 9 retailers as of November 5, 2026, with prices from $6,493 to $13,319, a $6,827 spread on the same certified stone. Wholesale Diamonds Direct lists it at $13,319. 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 angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6562180528
Dimensions7.32 × 4.46 × 4.46 mm
L/W Ratio1.64
Culet sizeNone
Top View
7.32 mm4.46 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562180528
Side View
Table 60.0%Crown 34.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 60.8%

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 5
Current: $6,493 AUD|Low: $6,458 AUD|High: $14,391 AUD|Avg: $9,273 AUD|-8.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 5, 2026
Retailer 1$6,493 AUD
Retailer 6$7,260 AUD
Retailer 4$7,766 AUD
Retailer 5$8,002 AUD
Retailer 3$8,140 AUD
Retailer 2$9,064 AUD
Retailer 8$9,114 AUD
Retailer 7$12,365 AUD
Wholesale Diamonds Direct$13,319 AUD

42 data points across 9 retailers

9 retailers$6,493 AUD to $13,319 AUD

A
Cheapest Retailer
-
$6,493 AUD
A
Retailer 2
-
$7,260 AUD
View
A
Retailer 3
-
$7,766 AUD
View
B+
Retailer 4
-
$8,002 AUD
View
A
Retailer 5
-
$8,140 AUD
View
B+
Retailer 6
-
$9,064 AUD
View
B+
Retailer 7
-
$9,114 AUD
View
B
Retailer 8
-
$12,365 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
323485686 · Nov 6
$13,319 AUD
$9,152 USD
View
8 more retailers have this diamond
Prices start from $6,493 AUDSave up to $6,827 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
$6,493 AUD