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Round|Natural|GIA

1.23ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2556885249

Certificate GIA 2556885249

Diamond specifications and retailer prices

From $2,276 AUD
As of November 5, 2026
Save $2,001 AUD (47%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,277 AUD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.23ct natural round diamond

This 1.23ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2556885249. Listed at 9 retailers as of November 5, 2026, with prices from $2,276 to $4,277, a $2,001 spread on the same certified stone. Wholesale Diamonds Direct lists it at $4,277. 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

1.23
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556885249
Dimensions6.80 × 4.26 × 4.26 mm
L/W Ratio1.60
Culet sizeNone
Top View
6.80 mm4.26 mm1.23 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556885249
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 5
Current: $2,592 AUD|Low: $2,265 AUD|High: $4,668 AUD|Avg: $3,241 AUD|-8.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Wholesale Diamonds Direct
November 6, 2026
Retailer 2$2,276 AUD
Retailer 8$2,474 AUD
Retailer 1$2,592 AUD
Retailer 4$2,841 AUD
Retailer 7$2,845 AUD
Retailer 5$3,327 AUD
Retailer 6$3,379 AUD
Retailer 3$3,652 AUD
Wholesale Diamonds Direct$4,277 AUD

39 data points across 9 retailers

9 retailers$2,276 AUD to $4,277 AUD

A
Cheapest Retailer
-
$2,276 AUD
A
Retailer 2
-
$2,474 AUD
View
A
Retailer 3
-
$2,592 AUD
View
A
Retailer 4
-
$2,841 AUD
View
A
Retailer 5
-
$2,845 AUD
View
B+
Retailer 6
-
$3,327 AUD
View
B+
Retailer 7
-
$3,379 AUD
View
B+
Retailer 8
-
$3,652 AUD
View
Most Expensive
B
Wholesale Diamonds Direct
570868291 · Nov 6
$4,277 AUD
$2,939 USD
View
8 more retailers have this diamond
Prices start from $2,276 AUDSave up to $2,001 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
1.23ct Round
$2,276 AUD