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Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6552673012

Certificate GIA 6552673012

Diamond specifications and retailer prices

From $8,163 AUD
HK$44,800 HKD
As of October 31, 2026
Save $10,385 AUD (56%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $18,548 AUD at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552673012. Listed at 10 retailers as of October 30, 2026, with prices from $8,163 to $18,548, a $10,385 spread on the same certified stone. NZ Jewellers lists it at $18,548. 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552673012
Dimensions7.23 × 7.29 × 4.55 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.23 mm7.29 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552673012
Side View
Table 57.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.6%

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: Oct 31
Current: $18,548 AUD|Low: $8,091 AUD|High: $19,955 AUD|Avg: $12,114 AUD|-7.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 2$8,163 AUD
Retailer 3$9,285 AUD
Retailer 9$9,662 AUD
Retailer 8$9,683 AUD
Retailer 6$11,231 AUD
Retailer 7$11,403 AUD
Retailer 10$11,509 AUD
Retailer 4$12,408 AUD
Retailer 5$15,735 AUD
NZ Jewellers$18,548 AUD

43 data points across 10 retailers

10 retailers$8,163 AUD to $18,548 AUD

A
Cheapest Retailer
-
$8,163 AUD
HK$44,800 HKD
A
Retailer 2
-
$9,285 AUD
€6,211 EUR
View
Retailer 3
-
$9,662 AUD
SGD 9,172 SGD
View
Price last confirmed 19 days ago
A
Retailer 4
-
$9,683 AUD
$6,802 USD
View
A
Retailer 5
-
$11,231 AUD
$7,889 USD
View
A
Retailer 6
-
$11,403 AUD
$8,010 USD
View
B+
Retailer 7
-
$11,509 AUD
View
B+
Retailer 8
-
$12,408 AUD
€8,301 EUR
View
B+
Retailer 9
-
$15,735 AUD
£8,703 GBP
View
Most Expensive
B
NZ Jewellers
df459700-bc96-43ab-b655-bc388fce4981 · Oct 30
$18,548 AUD
$13,029 USD
View
9 more retailers have this diamond
Prices start from $8,163 AUDSave up to $10,385 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
$8,163 AUD