CaratHunter
Plans
Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6233939765

Certificate GIA 6233939765

Diamond specifications and retailer prices

From $8,479 AUD
As of November 6, 2026
Save $10,601 AUD (56%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $19,080 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6233939765. Listed at 26 retailers as of November 5, 2026, with prices from $8,479 to $19,080, a $10,601 spread on the same certified stone. NZ Jewellers lists it at $19,080. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6233939765
Dimensions7.22 × 7.28 × 4.47 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
7.22 mm7.28 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6233939765
Side View
Table 61.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $11,669 AUD|Low: $8,274 AUD|High: $15,982 AUD|Avg: $11,442 AUD|-1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 8$8,479 AUD
Retailer 7$9,102 AUD
Retailer 2$10,514 AUD
Retailer 6$10,998 AUD
Retailer 1$11,669 AUD
Retailer 4$11,688 AUD
Retailer 3$13,918 AUD
Retailer 5$15,855 AUD

44 data points across 8 retailers

26 retailers$8,479 AUD to $19,080 AUD

B+
Cheapest Retailer
-
$8,479 AUD
B+
Retailer 2
-
$8,610 AUD
View
B+
Retailer 3
-
$9,012 AUD
View
B+
Retailer 4
-
$9,102 AUD
View
Final sale: no returns
B+
Retailer 5
-
$9,137 AUD
View
B+
Retailer 6
-
$9,475 AUD
View
Retailer 7
-
$9,540 AUD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$9,569 AUD
View
B+
Retailer 9
-
$10,157 AUD
View
B+
Retailer 10
-
$10,335 AUD
View
B+
Retailer 11
-
$10,514 AUD
View
B
Retailer 12
-
$10,530 AUD
View
B
Retailer 13
-
$10,905 AUD
View
Retailer 14
-
$10,998 AUD
View
Price last confirmed 15 days ago
B+
Retailer 15
-
$11,439 AUD
View
B+
Retailer 16
-
$11,439 AUD
View
B+
Retailer 17
-
$11,499 AUD
View
B+
Retailer 18
-
$11,669 AUD
View
B+
Retailer 19
-
$11,688 AUD
View
B
Retailer 20
-
$11,818 AUD
View
B
Retailer 21
-
$11,924 AUD
View
B
Retailer 22
-
$12,560 AUD
View
Retailer 23
-
$12,569 AUD
View
Price last confirmed 14 days ago
B
Retailer 24
-
$13,918 AUD
View
B
Retailer 25
-
$15,855 AUD
View
Most Expensive
B
NZ Jewellers
88894d16-2cac-4304-82c2-a7849fbcd248 · Nov 5
$19,080 AUD
$13,110 USD
View
25 more retailers have this diamond
Prices start from $8,479 AUDSave up to $10,601 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.

B+
1.50ct Round
$8,479 AUD