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Round|Natural|GIA

1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6531235342

Certificate GIA 6531235342

Diamond specifications and retailer prices

From $6,587 AUD
$4,627 USD
As of October 30, 2026
Save $7,991 AUD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $14,578 AUD at NZ Jewellers · As of October 27, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531235342. Listed at 22 retailers as of October 27, 2026, with prices from $6,587 to $14,578, a $7,991 spread on the same certified stone. NZ Jewellers lists it at $14,578. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6531235342
Dimensions7.31 × 7.34 × 4.48 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Feather, Crystal, Needle, Natural
Top View
7.31 mm7.34 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6531235342
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.1%

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 30
Current: $14,578 AUD|Low: $6,013 AUD|High: $14,578 AUD|Avg: $8,545 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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 30, 2026
Retailer 14$6,013 AUD
Retailer 10$6,587 AUD
Retailer 7$6,691 AUD
Retailer 9$6,886 AUD
Retailer 11$6,974 AUD
Retailer 6$7,802 AUD
Retailer 8$7,895 AUD
Retailer 18$7,895 AUD
Retailer 19$7,895 AUD
Retailer 21$8,265 AUD
Retailer 15$8,305 AUD
Retailer 12$8,593 AUD
Retailer 3$8,826 AUD
Retailer 20$8,826 AUD
Retailer 2$9,000 AUD
Retailer 5$9,111 AUD
Retailer 16$9,111 AUD
Retailer 13$9,455 AUD
Retailer 4$12,628 AUD
Retailer 17$12,858 AUD
NZ Jewellers$14,578 AUD

32 data points across 21 retailers

22 retailers$6,587 AUD to $14,578 AUD

Retailer 1
-
$6,013 AUD
HK$33,000 HKD
Price last confirmed 51 days ago
A
Retailer 2
-
$6,587 AUD
$4,627 USD
View
Retailer 3
-
$6,691 AUD
$4,700 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
$6,886 AUD
$4,837 USD
View
A
Retailer 5
-
$6,974 AUD
$4,899 USD
View
A
Retailer 6
-
$7,173 AUD
View
B+
Retailer 7
-
$7,802 AUD
$5,481 USD
View
B+
Retailer 8
-
$7,895 AUD
$5,546 USD
View
B+
Retailer 9
-
$7,895 AUD
$5,546 USD
View
B+
Retailer 10
-
$7,895 AUD
$5,546 USD
View
B+
Retailer 11
-
$8,265 AUD
$5,806 USD
View
B+
Retailer 12
-
$8,305 AUD
£4,594 GBP
View
Retailer 13
-
$8,593 AUD
$6,036 USD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
$8,826 AUD
$6,200 USD
View
B+
Retailer 15
-
$8,826 AUD
$6,200 USD
View
B+
Retailer 16
-
$9,000 AUD
€6,021 EUR
View
B+
Retailer 17
-
$9,111 AUD
$6,400 USD
View
B+
Retailer 18
-
$9,111 AUD
$6,400 USD
View
B+
Retailer 19
-
$9,455 AUD
£5,230 GBP
View
B
Retailer 20
-
$12,628 AUD
$8,870 USD
View
B
Retailer 21
-
$12,858 AUD
£7,112 GBP
View
Most Expensive
B
NZ Jewellers
6a24d490-60d2-49bc-afd6-38d392c3b7e6 · Oct 27
$14,578 AUD
$10,240 USD
View
21 more retailers have this diamond
Prices start from $6,587 AUDSave up to $7,991 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
$6,587 AUD