Round|Natural|GIA

1.50ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 6542246597

Certificate GIA 6542246597

Diamond specifications and retailer prices

From $11,238 AUD
$7,894 USD
As of November 1, 2026
Save $7,509 AUD (40%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $24,006 AUD at NZ Jewellers · As of September 26, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6542246597. Listed at 25 retailers as of November 1, 2026, with a 67% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6542246597
Dimensions7.34 × 7.29 × 4.52 mm
L/W Ratio1.01
Top View
7.34 mm7.29 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542246597
Side View
Table 59.0%Crown 34.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.8%

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 1
Current: $15,715 AUD|Low: $11,002 AUD|High: $18,973 AUD|Avg: $14,841 AUD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2$11,238 AUD
Retailer 3$11,930 AUD
Retailer 11$12,002 AUD
Retailer 4$12,889 AUD
Retailer 9$13,177 AUD
Retailer 10$13,763 AUD
Retailer 5$15,057 AUD
Retailer 1$15,715 AUD
Retailer 7$17,634 AUD
Retailer 8$18,505 AUD
Retailer 6$18,747 AUD

34 data points across 11 retailers

25 retailers$11,238 AUD to $18,747 AUD

B+
Cheapest Retailer
-
$11,238 AUD
$7,894 USD
B+
Retailer 2
-
$11,930 AUD
$8,380 USD
View
B+
Retailer 3
-
$12,002 AUD
$8,431 USD
View
Final sale: no returns
Retailer 4
-
$12,004 AUD
$8,432 USD
View
Price last confirmed 25 days ago
B+
Retailer 5
-
$12,794 AUD
$8,987 USD
View
B+
Retailer 6
-
$12,889 AUD
£7,129 GBP
View
Retailer 7
-
$13,003 AUD
$9,134 USD
View
Price last confirmed 25 days ago
Retailer 8
-
$13,003 AUD
$9,134 USD
View
Price last confirmed 45 days ago
Retailer 9
-
$13,177 AUD
View
Price last confirmed 9 days ago
Retailer 10
-
$13,204 AUD
$9,275 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
$13,667 AUD
$9,600 USD
View
B+
Retailer 12
-
$13,667 AUD
$9,600 USD
View
B+
Retailer 13
-
$13,763 AUD
$9,668 USD
View
B+
Retailer 14
-
$14,122 AUD
$9,920 USD
View
B+
Retailer 15
-
$14,342 AUD
$10,075 USD
View
Retailer 16
-
$15,005 AUD
$10,540 USD
View
Price last confirmed 41 days ago
Retailer 17
-
$15,005 AUD
$10,540 USD
View
Price last confirmed 24 days ago
B+
Retailer 18
-
$15,057 AUD
€10,073 EUR
View
B
Retailer 19
-
$15,715 AUD
£8,692 GBP
View
Retailer 20
-
$15,799 AUD
$11,098 USD
View
Price last confirmed 18 days ago
B
Retailer 21
-
$17,634 AUD
ZAR 200,109 ZAR
View
B
Retailer 22
-
$18,505 AUD
£10,235 GBP
View
B
Retailer 23
-
$18,747 AUD
£10,369 GBP
View
Retailer 24
-
$24,006 AUD
$16,863 USD
View
Price last confirmed 43 days ago
Most Expensive
NZ Jewellers
ba4b0b67-c199-47ad-b61b-be1379b7ec82 · Sep 26
$24,006 AUD
$16,863 USD
View
Price last confirmed 36 days ago
24 more retailers have this diamond
Prices start from $11,238 AUDSave up to $7,509 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
$11,238 AUD