CaratHunter
Plans
Round|Natural|GIA

1.50ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2554887121

Certificate GIA 2554887121

Diamond specifications and retailer prices

From $8,438 AUD
HK$46,200 HKD
As of November 1, 2026
Save $6,748 AUD (44%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $18,864 AUD at NZ Jewellers · As of September 28, 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 2554887121. Listed at 14 retailers as of November 1, 2026, with a 80% 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 angle32.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554887121
Dimensions7.40 × 7.44 × 4.40 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Cavity, Needle
Top View
7.40 mm7.44 mm1.50 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554887121
Side View
Table 61.0%Crown 32.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.3%

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 1
Current: $11,674 AUD|Low: $8,340 AUD|High: $15,570 AUD|Avg: $10,738 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$8,438 AUD
Retailer 4$8,578 AUD
Retailer 2$9,745 AUD
Retailer 8$10,058 AUD
Retailer 10$10,754 AUD
Retailer 9$10,946 AUD
Retailer 1$11,674 AUD
Retailer 5$11,930 AUD
Retailer 7$12,578 AUD
Retailer 3$15,186 AUD

33 data points across 10 retailers

14 retailers$8,438 AUD to $15,186 AUD

A
Cheapest Retailer
-
$8,438 AUD
HK$46,200 HKD
A
Retailer 2
-
$8,578 AUD
₹572,527 INR
View
A
Retailer 3
-
$8,817 AUD
View
Retailer 4
-
$9,745 AUD
SGD 9,229 SGD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$10,058 AUD
$7,049 USD
View
Final sale: no returns
Retailer 6
-
$10,754 AUD
View
Price last confirmed 29 days ago
Retailer 7
-
$10,946 AUD
$7,671 USD
View
Price last confirmed 13 days ago
B+
Retailer 8
-
$11,211 AUD
View
Retailer 9
-
$11,278 AUD
$7,904 USD
View
Price last confirmed 35 days ago
B+
Retailer 10
-
$11,674 AUD
€7,792 EUR
View
B+
Retailer 11
-
$11,930 AUD
£6,583 GBP
View
B
Retailer 12
-
$12,578 AUD
$8,815 USD
View
B
Retailer 13
-
$15,186 AUD
£8,380 GBP
View
Most Expensive
NZ Jewellers
4e892bac-32ee-4fd1-b16a-f0b1602a8d3c · Sep 28
$18,864 AUD
$13,220 USD
View
Price last confirmed 35 days ago
13 more retailers have this diamond
Prices start from $8,438 AUDSave up to $6,748 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
$8,438 AUD