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Round|Natural|GIA

1.24ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 5553587100

Certificate GIA 5553587100

Diamond specifications and retailer prices

From $3,863 AUD
HK$21,200 HKD
As of November 1, 2026
Save $5,133 AUD (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,996 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.24ct natural round diamond

This 1.24ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553587100. Listed at 17 retailers as of October 30, 2026, with prices from $3,863 to $8,996, a $5,133 spread on the same certified stone. NZ Jewellers lists it at $8,996. 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

1.24
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5553587100
Dimensions6.82 × 6.87 × 4.26 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Indented Natural, Natural
Top View
6.82 mm6.87 mm1.24 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5553587100
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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: $8,996 AUD|Low: $3,827 AUD|High: $9,856 AUD|Avg: $5,789 AUD|-8.7%
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
November 2, 2026
Retailer 11$3,863 AUD
Retailer 3$4,153 AUD
Retailer 6$4,316 AUD
Retailer 4$4,393 AUD
Retailer 13$4,678 AUD
Retailer 15$4,678 AUD
Retailer 5$4,857 AUD
Retailer 7$5,310 AUD
Retailer 14$5,310 AUD
Retailer 9$5,319 AUD
Retailer 16$5,398 AUD
Retailer 12$5,481 AUD
Retailer 2$5,514 AUD
Retailer 8$5,850 AUD
Retailer 10$8,635 AUD
NZ Jewellers$8,996 AUD

42 data points across 16 retailers

17 retailers$3,863 AUD to $8,996 AUD

A
Cheapest Retailer
-
$3,863 AUD
HK$21,200 HKD
B+
Retailer 2
-
$4,153 AUD
$2,917 USD
View
B+
Retailer 3
-
$4,195 AUD
View
B+
Retailer 4
-
$4,316 AUD
$3,032 USD
View
Final sale: no returns
Retailer 5
-
$4,393 AUD
$3,086 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$4,678 AUD
$3,286 USD
View
B+
Retailer 7
-
$4,678 AUD
$3,286 USD
View
B+
Retailer 8
-
$4,857 AUD
$3,412 USD
View
B+
Retailer 9
-
$5,310 AUD
$3,730 USD
View
B+
Retailer 10
-
$5,310 AUD
$3,730 USD
View
B+
Retailer 11
-
$5,319 AUD
£2,942 GBP
View
B
Retailer 12
-
$5,398 AUD
$3,792 USD
View
B+
Retailer 13
-
$5,481 AUD
$3,850 USD
View
B+
Retailer 14
-
$5,514 AUD
€3,689 EUR
View
Retailer 15
-
$5,850 AUD
$4,109 USD
View
Price last confirmed 10 days ago
B
Retailer 16
-
$8,635 AUD
£4,776 GBP
View
Most Expensive
B
NZ Jewellers
e8b27764-36d9-4b82-9b4d-08975005fb1f · Oct 30
$8,996 AUD
$6,319 USD
View
16 more retailers have this diamond
Prices start from $3,863 AUDSave up to $5,133 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
1.24ct Round
$3,863 AUD